HKSMM4 2005 to HKSMM4 Revised 2018 Conversion Guide (incomplete)

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Draft in progress.

29 Nov 2019: Updated.

19 Nov 2019: Updated.

3 Aug 2019: Created.

NOTE

"HKSMM4" means Hong Kong Standard Method of Measurement of Building Works - Fourth Edition, 2005.

"HKSMM4R" means Hong Kong Standard Method of Measurement of Building Works - Fourth Edition Revised 2018.

"SMM" means HKSMM4 or HKSMM4R as the case may be.

SUMMARY OF CHANGES

  • Generally
    • Some inconsistent words corrected.
  • Preliminaries
    • Some terms in the Preliminaries updated to match those now used in the industry.
  • Piling and caissons
    • Various types of hole or test boring and drilling for piles added.
    • Rock-socketed steel H-piles, mini-piles and pressure grouting added.
  • Excavation
    • Reduce level excavation all measured cube instead of super for thinner layer.
    • Minimum excavation measurement sizes for surface trenches, column or stanchion bases, isolated piers, manholes and the like removed.
    • Backfilling to excavation all measured cube instead of super for thinner layer.
  • Concrete works
    • Coverage rules for concrete expanded.
    • Holes not exceeding 150 mm diameter and openings not exceeding 0.50 m2 sectional area deemed included.
    • Cement grouting under steel column bases or under steel grillages deemed included.
    • Transfer plates added. Same rules as slabs.
    • Shoulders of different mixes in slabs deemed included.
    • Transfer beams added. Same rules as beams.
    • Formwork to beam of depth below slab soffit > 1.00 m instead of 0.75 m measured separately.
    • Formwork to tops, edges, breaks, risers and open strings not exceeding 300 mm wide grouped together instead of in stages of 100 mm.
    • Formwork to edges and soffits of copings, cills, strings, cornices, eaves overhangs and the like not exceeding 500 mm wide grouped by girth of 0 – 300 mm and 300 - 500 mm instead of in stages of 100 mm.
    • Forming holes for pipes, cables and the like > 150 mm diameter given as an item.
    • Boxing for openings less than 0.50 m2 instead of 0.025 m2 deemed included.
    • Reinforcement in precast concrete work deemed included.
  • Drainage
    • Drainage trench excavation classified by average depth only instead of total depth and average depth.
    • Manholes, inspection chambers, soakaways and back inlet gully traps classified by total depth of first 1.00 m then in stages of 0.50 m.
    • Drainage chamber-like items measured by number all inclusive.
    • Step irons and covers deemed included.
  • Wood works
    • Supports for suspended ceilings classified by suspension depth in stages of 1.50 m instead of 0 - 150 mm, 150 - 500 mm and in further 1.50 m stages.
    • Wooden doors measured as one set inclusive of frames or linings, openings and louvred openings.
    • Features in handrails and balustrades deemed included.
  • Ironmongery
    • Coverage rules for ironmongery expanded.
    • Door frame holdfasts, anchor bolts and rag bolts deleted but not deemed included in doors.
  • Steel and metal works
    • Coverage rules for structural steel expanded.
    • Tactile studs and tactile strips added.
    • Suspended ceilings deemed to include edge and angle trims and forming openings and holes.
    • Suspended ceilings classified by suspension depth in stages of 1.50 m instead of 0 - 150 mm, 150 - 500 mm and in further 1.50 m stages.
    • Suspended ceiling upstands and bulkheads classified by depth of first 600 mm instead of 300 mm then in stages of 300 mm.
  • Plastering and paving
    • Fire rated enclosure added.
    • Rounded angles and coves to in-situ finishes deemed included.
    • Angel fillets to in-situ finishes added.
    • Tactile tiles added.
  • Glazing
    • Glazing measured as part of windows and glazed doors.
    • Infill panels in curtain walling not separately measured.
    • Glazing classified by pane areas ≤ 0.15 m2, > 0.15 and ≤ 4.00 m2, and > 4.00 m2.
  • Painting
    • Painting on pipes and conduits classified by girth > 300 mm, girth ≤ 300 mm, and area ≤ 0.50 m2 irrespective of girth, instead of by diameter of ≤ 50 mm, 50 – 100 mm, > 100 mm.
  • Landscaping
    • Green planting systems, and statues, sculptures and stone features added.

 

TRACK-CHANGES

{deleted text in HKSMM4 added text in HKSMM4R} unchanged text in HKSMM4

 

Ref

Rules

 

GENERALLY

 

the {Main} Contractor

 

{Artists or Tradesmen Specialist Contractors}

III

PRELIMINARIES

8.

Plant{s}, Tools, Sheds, etc.

8.1

Plant, tools, scaffolding and staging{, special scaffolds if required for Nominated Sub-Contractors’ work}

9.

{Notices and Fees Statutory Obligations}

9.1

Compliance with and giving notices required by any Ordinance {of Government,} Regulations and Bye-Laws of {any} Government {Department, Local Authority and any Public Service Company or Authority, and any statutory undertakers and utility companies} …

10.

{Safety Supervision Plan and} Safety Precautions

10.1

{Compliance with the current Labour Department’s Construction Sites (Safety) Regulations. Preparation of safety supervision plan and compliance with the approved plan and all applicable safety ordinances and regulations.}

11.

{Industrial Training Construction Industry} Levy

11.1

Payment of the levy legally demandable under the {Industrial Training (Construction Industry) Construction Industry Council} Ordinance

12.1

… Pneumoconiosis {and Mesothelioma} (Compensation) (Assessment of Levy) Regulations …

14.

{Foreman Contractor’s Site Management Team}

14.1

{General foreman and his attendance on the Works Construction manager and his site management and supervisory team’s attendance on the Works}

15.

Protection of Public (Property etc. and Adjacent Property)

15.1

Maintenance and protection of public property {and property, adjacent properties, existing slopes, roads, footpaths, trees, shrubs and services} of the Public Utility Companies …

17.

{Artists or Tradesmen not Sub-Contractors Persons or Specialist Contractors engaged by the Employer}

17.1

Permission for execution of work by {Artists and Tradesmen who are not Nominated Sub-Contractors and persons or Specialist Contractors} who may be engaged by the Employer.

19.

Insurances{, etc.}

19.1

{Insurances against or allowances to be made in respect of the following:

(a) Fire and extraneous perils

(b) Injury to persons and property

(c) Workmen’s compensation

Requirements in respect of the following insurances:

(a) Contractors’ all risks insurance of the Works

(b) Third party liability insurance

(c) Employees’ compensation insurance}

25.

{Treasure, Trove, Coins, etc. Antiquities}

29.

Removal of Water

Unit: Prov’l sum {/ Prov’l number of pumping hours}

30.1

Water for the Works, including that for Nominated Sub-Contractors{, Specialist Contractors employed by the Employer, statutory undertakers and utility companies} and any necessary temporary plumbing and storage

31.1

Lighting and power for the Works, including that for Nominated Sub-Contractors{, Specialist Contractors employed by the Employer, statutory undertakers and utility companies} and any necessary temporary wiring and meters

34.1

Works to be carried out by Government Departments{, or Public Utility Companies which are dealt with by means of Provisional Sums statutory undertakers and utility companies}, e.g.:

(a) Taking up and replaying the paving of public roads and footpaths

(b) Forming permanent crossing

(c) Connections to fresh and flush water, gas, electric mains, telephone, drainage and the like

Unit: Item

40.

{Building Information Modelling}

40.1

{Requirements in respect of building information modelling for design, construction or facility management purposes

Unit: Item}

IV

DEMOLITIONS AND ALTERATIONS

(a)

Demolitions

2.

3.

4.

Demolishing individual structure

Demolishing parts of structures

Clearing the site of all structures

{6. Toxic/hazardous material, type stated}

(b)

Alterations

4.

Pulling down walls, partitions, suspended ceilings, floors, roofs, staircases and other parts of old structures

{4. Toxic/hazardous material, type stated}

V

PILING AND CAISSONS

(a)

Piling General

1.

Generally

The following general information, where available, shall be given:

(a) Ground level in relation to high and low water tables and {Ordinance} Principal Datum

(c) The various levels from which {piling frames will operate the measurements have been taken are stated, irregular ground levels are so described}

<Comment: drafting style inconsistent with the remaining items.>

(b)

Steel Sheet Piling

10.

{Pre-boring the pile holes

1. Size of the cross-section of each pile stated

1. Depth of individual bores ≤ 10.00 m

2. Depth of individual bores > 10.00 m in stages of 5.00 m

Unit: m (nr stated)

M.8 Pre-boring is only measured where it is specifically required.

M.9 Measured from point of entry into ground to bottom of bore.

C.4 This work is deemed to include:

(a) Movement of boring rigs into position and about the site, any necessary excavation or filling required to place the rigs, raising or lowering the rigs and any staging, barges or the like required to support the rigs

(b) Drilling to required depths

(c) Filling voids between sides of piles and bores with approved materials}

<Comment:

The cross-section of the bored hole instead of the pile should be stated.

The "depth" should be described as "total depth" to avoid the meaning of successive depths. 

The pre-bored holes may be contiguous (adjacent to each other) or secant (overlapping each other). It may be more convenient to measure the elevation area of the trench wall formed by the pre-bored holes from the point of entry into ground to the bottom of the trench wall with the cross-sections and spacing of the pre-bored holes stated.> 

(e)

Bored Piles

2.

Boring the pile holes

1. Size of bore cross-section stated

{1. Total length of shaft ≤ 10.00 m

2. Total length of shaft in further stages of 5.00 m

1. Depth of individual bores ≤ 10.00 m

2. Depth of individual bores > 10.00 m in stages of 5.00 m}

Unit: m (nr stated)

C1 This work is deemed to include:

{(c) Provision of temporary casings to shaft bores including sinking and withdrawal operations

(d) Additional excavation required to accommodate temporary casings and permanent linings (if specified) and the consequent disposal of additional excavated material}

<Comment: The "depth" should be described as "total depth" to avoid the meaning of successive depths.> 

11.

{Sonic test

1. Sonic tube

1. Size, thickness and material stated

Unit: m

2. Sonic test

Unit: nr}

11a.

{Koden test

1. Verticality and bell-out

Unit: nr}

12.

Concrete coring test

1. Diameter of core {and grouting requirements} stated

1. Starting level of drilling below commencement level {stated in stages of 15.00 m}

Unit: m (nr stated)

<Comment: It is still preferred to state the starting level in stages. Otherwise, there would be too many items due to different starting levels.>

14.

{Pre-drilling

1. Diameter of borehole stated

1. Drilling depth measured in stage of 15.00 m

Unit: m (nr stated)}

<Comment: It would be better to call it "drill hole".>

15.

{Post construction proof drilling}

(f)

Steel Piles

9.

{Pre-boring Boring the pile holes}

1. Size of pile stated

1. {Total length of shaft Depth of individual bores} ≤ 10.00 m

2. {Total length of shaft in further Depth of individual bores > 10.00 m in} stages of 5.00 m

Unit: m (nr stated)

<Comment: The "depth" should be described as "total depth" to avoid the meaning of successive depths.>

12.

13.

{Pre-drilling

Post construction proof drilling

1. Diameter of boreholes stated

1. Drilling depth measured in stages of 15.00 m

Unit: m (nr stated)}

<Comment: It would be better to call it "drill hole".>

 

Rock-socketed steel H-piles

Mini-piles

Pressure grouting

 

<Sections added>

VI

EXCAVATION

(a)

Excavation

3.

Excavating

3.2

Excavation to reduce levels over site{, > 0.20 m in average depth average depth stated if ≤ 0.20 m}

Unit: m3

3.5

Surface trenches

Unit: m3

{M.6 Where trenches exceed 1.00 m in depth a minimum width of 0.75 m is measured}

3.7

Excavation for column or stanchion bases, isolated piers, manholes and the like, each given separately

Unit: m3

{M.7 Where these excavations exceed 1.50 m in depth a minimum measurement on plan of 1.25 m x 1.25 m is taken for excavation.}

7.

Backfilling to excavation

{1. ≤ 0.30 m in depth, average depth stated

Unit: m2

2. > 0.30 m in depth (where part exceeds 0.30 m in depth, the whole is given cube)}

Unit: m3

VII

CONCRETE WORKS

(a)

Concrete

1.

Generally

C.1 Each item of concrete work is deemed to include {for:

(a) Mixing, conveying, hoisting or lowering, placing in position, vibrating, curing, protection and complying with temperature control requirements

forming grooves (other than in fair faced concrete to form ornamental features), chases, mortices,

(b) Forming grooves (other than in fair faced concrete to form ornamental features), chases, mortices

grouting in balusters, bolts, dowels and the like with cement,

(c) Grouting in balusters, bolts, dowels and the like with cement mortar

holes for pipes, openings ≤ 0.025 m2 sectional area, and the required steel trimming bars to these holes and openings and making good and other sundry items of a like nature

(d) Forming holes for pipes, cables and the like etc. ≤ 150 mm diameter, and openings ≤ 0.50 m2 sectional area, and the required steel trimming bars to these holes and openings and making good

(e) Forming of all construction joints including the provision of approved waterstops or other similar material (except those joints designed by the Engineer)

(f) Casting kickers monolithically with base slab where these are required at base of walls and columns

(g) Forming angles, ends, intersections and similar labours to curbs, copings, channels and other items measured run

(h) Provision and submission of concrete test cubes for testing and provision of test certificates.}

12.

{Cement grouting under steel column bases or under steel grillages

12.1 Mix and thickness stated

Unit: m2}

18.

19.

19a.

Suspended slabs

Coffered and troughed slabs

1. Horizontal

2. Sloping ≤ 15 degrees

3. Sloping > 15 degrees

{Transfer plates

1. Thickness stated}

Unit: m3

C.9 {Shoulders of different (or stronger) mix are deemed to include for any additional formwork or permanent mesh separation barriers required to form the shoulders. This work is deemed to include shoulders or haunchings of richer (or stronger) mix including any additional formwork or permanent mesh separation barriers required to form the shoulders and haunchings.}

21a.

Transfer beams

Unit: m3

(d)

Formwork

2.

3.

3a.

3b.

Soffits of slabs

Soffits of landings

{Soffits of stairs

Soffits of transfer plates}

7.

7a.

Sides of soffits of beams

{Sides and soffits of transfer beams}

1. Depth of beams ≤ {0.75 1.00} m (below soffit of slab)

2. Depth of beams > {0.75 1.00} m (below soffit of slab)

8.

9.

Top formwork

Edges and breaks in slabs and walls, including soffits of openings in walls and sides of curbs

1. Straight

2. Curved

1. Width > 300 mm

Unit: m2

{2. Width ≤ 100 mm

3. Width > 100 mm and ≤ 200 mm

4. Width > 200 mm and ≤ 300 mm

2. Width ≤ 300 mm}

Unit: m

10.

Risers and open strings of stairs

1. Straight

2. Curved

{1. Width ≤ 100 mm

2. Thereafter in stages of 100 mm

Unit: m}

1. Width > 300 mm

Unit: m2

2. Width ≤ 300 mm

Unit: m

11.

Edges and soffits of copings, cills, strings, cornices, eaves overhangs and the like {≤ 0.50m wide}, grouped together

1. Straight

2. Curved

{1. Girth ≤ 0.30 m stated in stages of 100 mm

Unit: m

1. Girth > 0.50 m

Unit: m2

2. Girth ≤ 0.30 m

3. Girth > 0.30 m and ≤ 0.50 m

Unit: m}

 

15.

Forming holes for pipes, cables and the like, > 150 mm diameter

{1. Thickness of concrete and size of pipe or cable etc. stated

Unit: nr

Unit: item}

<Comment: This virtually means that an item must be given for every job involving concrete works.>

16.

Boxings for openings > {0.025 0.50} m2 and ≤ 1.00 m2 sectional area

1. Thickness of concrete and size in stages of 0.10 m2

Unit: nr

(e)

Precast Concrete Work

1.

Generally

C.1 {All moulds are deemed to be included in the item. All reinforcement and moulds with specified finished surfaces are deemed to be included.}

2.

Bench slabs, seat slabs, façade panels, partition slabs, bollards, posts, planters etc.

1. Dimensioned description

1. {Reinforcement details stated

2.} Cast-in accessories, details stated

Unit: nr

 

<Comment: It should not mean that no reinforcement details are to be provided on the Tender Drawings made available for the Tenderers, otherwise it would lead to argument as to the extent of reinforcement required. Even if the detailed drawings are made available, it would require the Tenderers to inspect the drawings. For less complicated reinforcement details, it is still preferred to state the details in the BQ descriptions. If the details are left to the Contractor to design, it should be so stated.>

VIII

BRICKWORK AND BLOCKWORK

(a)

Brickwork and Blockwork

1.

Generally

C.1 Each item of Brickwork and Block Wall is deemed to include:

(a) All rough and fair cuttings

(b) Wedging and pinning

(c) Raking out joints to form key

(d) Raking out joints for and pointing flashings

(e) Labour eaves filling

(f) Plumbing angles and forming square and rebated reveals

(g) {Notches, forming or leaving or cutting chases Forming or leaving or cutting chases, grooves, notches, holes, mortices and similar including nay pinning, grouting and making good}

(h) {Holes and mortices and cutting and pinning and making good Cutting squints, birdmouths, splays, chamfers and similar labour items}

(i) Centering

{(j) Bedding and pointing frames, bedding plates and similar items

(k) Leaving pockets in the work to receive built-in items including subsequently blocking up}

{(j)(l)} And any other sundry items of a like nature

<Comment: New rule (j) also appears in the coverage rules of many other wood works and metal works items. The introduction of this new rule may cause uncertainty as to whether the costs are deemed included in brickwork and blockwork or in other wood works and metal works items.>

23.

{Sundry items built in or attached to brickwork or blockwork, type or name stated

1. Building in sundry items, described

2. Plugging and screwing sundry items to brickwork or blockwork described

3. Shot firing sundry items to brickwork or blockwork, described

1 Thickness of wall stated, description includes formation of opening and lintol

Unit: nr}

<Comment: It does not mean that all sundry items are deemed included and not to be measured.>

IX

DRAINAGE (including Underground Pipe Ducts)

2.

3.

Excavating trenches for drain pipes

Excavating trenches for pipe ducts

{1. Total depth stated in stages of 1.50 m, (i.e. ≤ 1.50 m total depth, > 1.50 m and  ≤ 3.00 m total depth, etc.)

average depth stated in multiples of 0.25 m, and commencing level stated

1. Average trench depth stated in multiples of 0.25 m, and commencing level stated}

Unit: m

13.

14.

15.

16.

Manholes

Inspection chambers

Soakaways

{Others Back inlet gully traps

1. Dimensioned description given for each type of design

1. Total depth between the cover level and invert level ≤ 1.00 m deep

2. Thereafter in stages of 0.50 m deep}

Unit: nr

M.2 {Where of a standard design these items enumerated and fully described, description includes covers, step irons and intercepting traps. These items enumerated and fully described, description includes excavation, concrete, formwork, reinforcement, steel joists, brickwork, benchings, rendered coatings, painting, covers, step irons, intercepting traps and other works.}

M.3 {Alternatively, where not of standard design they are measured in the same way as items 17 to 22 hereof. Alternatively, they are measured in detail in accordance with the rules in the appropriate Sections.}

<Comment: For each type of manhole, the covers may vary depending on the locations of the manholes. It would be better to measure the covers separately to reduce the number of combinations of manholes and different covers. The type of covers is also more subject to change. Separating the measurement would obtain rates for variation valuation.>

17.

18.

19.

20.

21.

Cesspools

Septic Tanks

Grease traps

{Petrol Interceptors}

Others

{1. Excavation

2. Concrete

3. Formwork

4. Reinforcement

5. Brickwork

6. Rendered coatings

7. Painting}

1. Dimensioned description given for each type of design

Unit: nr

{8. Benchings, including channels

1. Average thickness stated

Unit: m2}

20.

{Step irons}

21.

{Covers}

25.

Connections with public sewers

{1. Where relevant details are available, these works are given separately in accordance with the appropriate measurement rules

2. Where no detail is available, a provisional sum is given}

Unit: Prov’l Sum

XIII

WOOD WORKS

(b) General Clauses Applicable to the Following Sections (c) through (m)
1.

Generally

{C.1 All wood works are deemed to include screws, bolts, dowels, holdfasts, ragbolts, patent connectors, cleats, brackets, plates and similar fixings including drilling and mortices in structure and grouting the same.}

(d)

Raised Access Floors

1.

Floors

1. {Thickness of panels stated Type, modular size and surface finish of panels stated}

1. Height of cavity stated

Unit: m2

2.

Ramps

3.

Items measured extra over the floors in which they occur

1. {Electrical and data panels, air grilles, diffusers, perforated panels and other special Special} panels

1. Dimensioned description

Unit: nr

1.

2.

3.

Floors

Ramps

Items measured extra over the floors in which they occur

C.1 Raised access floors are deemed to include:

(a) {Panels Floor panels}, supporting structures, adhesives, bearing pads{, gaskets, sealants, seals, edge mouldings} and the like

(b) Cutting and notching and extra supports

{(c) Forming openings for building service penetrations, electrical floor boxes, air diffusers and similar outlets}

(e)

Sheet Linings/Claddings, Timber Suspended Ceilings, Unframed Trims, Insulation, Proofing Works and Fire Stops

<Comment: “Cladding” is an uncountable noun without “s”.>

6.

Supports for suspended ceilings

1. Skeleton grounds, described

2. Framework, described

3. Framework for shaped ceiling, described

1. Fixed to soffit, background and method of fixing described

2. Suspended from soffit, hangers and spacing described with depth of suspension ≤ {150 mm 1.50 m}

{3. Ditto with depth of suspension 150 mm – 500 mm

4.3.} Ditto with depth of suspension stated thereafter in 1.50 m stages

Unit: m2

(i)

Doors, Hatches, Ventilators and the like and Frames and Linings

1.

Flush doors {and frames}

1. (Size, thickness and construction stated and facings and applied mouldings etc. described Dimensioned description of doors, frames or linings, stating the door size, thickness, construction, facings and applied mouldings etc. and size, number and type of glass panels and louvres)

            1. Single leaf doors

2. Folding doors

3. Swinging doors

4. Sliding doors

5. Sliding and folding doors

Unit: {nr or} Sets

<Comment: The doors may be separated from the frames and linings this can reduce the number of combinations of doors and framing or linings. This would also obtain rates for doors and frames or linings separately for variation valuation.>

2.

{Items measured extra over flush doors

1. Openings for glass

2. Louvred openings

1. Size and edge treatment stated

Unit: nr}

<Comment: The above comment also applies here.>

3.

Framed and paneled doors {and frames}

1. {Sectional sizes of stiles, rails, transoms, muntins, panels and the like given and size and number of panels and glazed or louvred panels stated Dimensioned description of doors, frames or linings, stating the sectional sizes of stiles, rails, transoms, muntins, panels and the like and size and number of panels and glazed or louvred panels

            1. Single leaf doors

2. Folding doors

3. Swinging doors

4. Sliding doors

5. Sliding and folding doors}

Unit: nr or Sets

<Comment: The above comment also applies here.>

4.

Fire rated doors and frames

1. Dimensioned description of doors, frames {and/}or linings

            {1. Ironmongery described}

Unit: Sets

<Comment: Ironmongery should be described.>

8.

9.

{Door frames

Door linings

1. Overall sizes of doors or door sets given, and cross section of members stated

1. Solid and built-up frames or linings are given separately, grounds or backings are described and included in the item­

Unit: nr}

<Comment: There are still merits to measure them separately.>

(j)

Stairs, Handrails and Balustrades

3.

Handrails

1. Dimensioned description with method of jointing {and mounting} handrail stated. If hollowed for and screwed to metal core this is stated

Unit: m

4.

{Items measured extra over handrails

1. Ramps

2. Wreaths

3. Bends

4 Ornamental ends

Unit: nr}

<Comment: It is advisable to describe them in the handrail descriptions, and to measure expensive features separately as extra over items.>

5.

Balustrades

1. Dimensioned description with spacing of balusters{, opening portions and method of jointing and mounting} stated

Unit: m

6.

{Items measured extra over balustrades

1. Ramps

2. Wreaths

3. Bends

4 Ornamental ends

5. Opening portions, details stated

6. Method of jointing handrail stated

Unit: nr}

<Comment: It is advisable to describe them in the balustrade descriptions, and to measure expensive features separately as extra over items.>

XIV

IRONMONGERY

1.

Generally

C.1 Ironmongery and fixing only of ironmongery supplied under a separate Prime Cost Item are deemed to include:

{(a) Fixing to any type of timber or building board unless some other surface is stated

(a) Fitting, cutting, sinking, boring and morticing

(b) Fitting, cutting, housing, sinking, boring, morticing, drilling and similar labours to the material to which the article is being fixed

(b) Supplying and screwing with screws to match

(c) Provision of all necessary screws to match the ironmongery, and any bolts, nuts, washers, nails, pins, lugs, adhesive or similar items required

(c) Drilling for and provision of plugs where required

(d) Drilling and plugging of concrete, brick, stone or other materials where required

(e) Oiling, easing and adjusting ironmongery and leaving in working order}

7.

Dowels

1. Size and length stated

Unit: nr

{M.5 Individual dowels, where not forming part of doors, are measured here.}

<Comment: The coverage rules for doors and frames do not include dowels. A preamble is required to deem door frames and linings to include for dowels.>

8.

{Holdfasts

1. Dimensioned description

Unit: nr}

<Comment: The coverage rules for doors and frames do not include this item. A preamble is required to deem door frames and linings to include for this item.>

9.

{Anchor bolts and rag bolts

Unit: r}

<Comment: The coverage rules for doors and frames do not include this item. A preamble is required to deem door frames and linings to include for this item.>

XV

STEEL AND METAL WORKS

(a)

Structural Steel

2. – 16.

C.1 Items for fabrication and erection are deemed to include {for}:

{(a) Cutting, notching and drilling

(a) Shop and site rivets and black bolts, nuts and washers

(b) Shop and site rivets

(c) Bolts including black bolts and high strength friction grip bolts complete with nuts and washers

(b) Welding, welding tests and X-rays

(d) Welding materials and welding tests including X-rays and other non-destructive tests as specified

(e) Galvanising to structural steelwork if specified}

{(c)(f)} Performance tests

{(d)(g)} Packings where required for connections, caps and bases

{(e) (h)} Wedging and grouting under bases

17.

18.

{Surface preparation}

Surface treatment

{1. Described

1. Sprayed metal coating

2. Protective painting

3. Other treatment type stated

1. Surface preparation described

2. Number of coats stated

3. Thickness of coat(s) stated

4. Fire rating stated

5. Finish stated}

Unit: m2

C.2 {The areas are deemed to include for works to additional surface areas of cleats and brackets etc. in connections. Additional surface areas of cleats and brackets etc. in connection are deemed to be included.

C.3 All surface preparation is deemed to be included.}

<Comment: “are/is deemed to be included” is superfluous when given under the Coverage Rules column.>

(e) Framed Work, Stairs, Handrails and Balustrades
2. - 6.

{C.2 (f) Core-rails and handrails are deemed to include for angles, ramps, wreathes and the like.

C.3 Core-rails, handrails and tubular handrails are deemed to include joints in the running lengths, bends, angles, ramps, wreathes, junctions, capped ends, flange plates, brackets and the like.}

5.

Mat frames

1. {Fully described Dimensioned description}

Unit: nr

6.

Core rails{, and} handrails {and tubular handrails}

1. Dimensioned description

Unit: m

7.

{Brackets to core rails and handrails

Unit: nr}

<Comment: To include in descriptions.>

8.

{Tubular handrails

Unit: m}

<Comment: Grouped in item 6.>

9.

{Items measured extra over tubular handrails and balustrades

1. Ramps

2. Wreathes

3. Bends

4. Junctions, described

5. Capped ends

6. Flange plates

Unit: nr}

10.

{Brackets to tubular handrails

1. Dimensioned description

Unit: nr}

<Comment: To include in descriptions.>

12.

{Gratings to floor channels and the like

1. Dimensioned description

2. General length of sections stated

Unit: m}

<Comment: Measure as (h) Sundries.>

13.

{Frames to gratings to floor channels and the like

1. Dimensioned description

Unit: m}

<Comment: Measure as (h) Sundries.>

14.

{Gratings to openings, ventilators and the like

1. Dimensioned description

Unit: nr}

<Comment: Measure as (h) Sundries.>

(h)

Sundries

11.

12.

{Tactile studs

Tactile strips

1. Warning/stop tactiles

2. Direction/go tactiles

3. Turning/positional tactiles

1. Dimensioned description, method of fixing and background for fixing stated

Unit: m2 or m (width stated)}

(m)

Suspended Ceilings

1.

Generally

C.1 Ceilings are deemed to include:

(a) Rails, hangers, spacers{, suspension and framed members} and the like

{(f) Edge and angle trims

(g) Forming openings and holes}

2.

3.

Tiled or panelled ceilings

Metal strip ceilings

1. Depth of suspension ≤ {150 mm 1.50 m}

{2. Depth of suspension 150 – 500 mm

3. Thereafter in 500 mm stages

2. Thereafter in 1.50 m stages}

Unit: m2

5.

Upstands {and bulkheads}

1. Height ≤ {300 mm 600 mm}

2. Thereafter in 300 mm stages

Unit: m

7.

{Edge trims

1. Plain

2. Floating

1. Dimensioned description

Unit: m}

8.

{Angle trims

Unit: m}

(n)

Windows and Glazed Doors

2.

3.

4.

5.

Windows

Glazed doors

Composite metal windows

Composite metal window and doors

1. Dimensioned description, overall size and drawing reference stated

1. Glazing {beads} described

2. Ironmongery described

Unit: nr

C.1 Windows and doors are deemed to include:

(a) Fixing including all screws and bolts, shot fired fixings and lugs

(b) Morticing ends of transoms and mullions and/or strengtheners to same

(c) Ironmongery and fittings

{(d) Glazing and glazing beads and compounds}

 

<Comment: Not measuring glazing separately will not obtain rates for variation valuation when the glazing is changed, which is rather usual.>

(p)

Curtain Walling

2.

Curtain walling

1. Dimensioned description

Unit: m2

<Comment: It would be preferable to measure vision and spandrel areas separately, and measure special corners, coping, soffit strips, feature strips, which are not proportional to the areas.>

3.

Items extra over curtain walling in which they occur

{1. Infill panels

1. Type and thickness stated

Unit: m2}

{2. 1.} Opening lights

{3. 2.} Doors

1. Dimensioned description

Unit: nr

2.

3.

Curtain walling

Items extra over curtain walling in which they occur

C.3 Items include:

(a) {doors, where supplied with the unit} Finishes as specified

(b) Architraves, trims and the like {where part of the component}

(c) Ironmongery {where supplied with the component associated with windows and doors}

(d) Glazing and infill panels

(e) Mechanical operation and automatic operating equipment where supplied with the component

(f) Sealing all joints and bedding and pointing frames

(g) Sealant or separation material to surfaces of aluminium in contact with concrete, plaster or brickwork

(h) Fixings and fastenings

(i) Stripping protective coverings or coatings

XVI

PLASTERING AND PAVING

(b)

Lathing and Plasterboard

1.

2.

3.

Metal lathing

1. Mesh stated

2. Laps stated

Plasterboard

1. Thickness stated

{Fire rated enclosure

1. Material, thickness and fire resisting period stated}

{8. To top, sides and soffits for enclosing individual pipe and duct, or group of pipes and ducts and the like}

Unit: m2

1.

2.

3.

4.

5.

Metal lathing

Plasterboard

{Fire rated enclosure}

Stop beads

Angle beads

C.2 The work is deemed to include the provision of approved timber or steel framing to support plasterboard or fire rated board as required.

<Comment: Whether it is timber or steel framing should be stated.>

(d)

In-situ Surface Finishes and Screeds or Backings

1. - 23.

{C.1 Work is deemed to include:

(a) Cleaning off and wetting surfaces of concrete slabs, and washing with cement grout if the concrete has hardened

(a)(b) Internal angles, arrises, throats, drips and the like

(b)(c) Coves, grooves and rounded external angles  ≤ 25 mm radius

(c)(d) Angles, stops, intersections, fair ends, junctions, wreathed corners and the like on coves, skirtings, channels, strings, curbs and the like}

13.

14.

{Rounded angles > 25 mm radius

Coves > 25 mm radius

Unit: m}

<Comment: A preamble is required to include these items.>

20a.

{Angle fillets

1. Width and depth stated

Unit: m}

(e)

Tile and Slab Finishes

24.

{Tactile tiles

1. Warning/stop tactiles

2. Direction/go tactiles

3. Turning/positional tactiles

1. Dimensioned description, method of fixing and background or fixing stated

Unit: m2 or m (width stated)}

XX

GLAZING

(a)

General Glazing (including Acrylic and Polycarbonate Sheets)

1.

Generally

M.1 Glass measured in this Sub-section is for general glazing {to windows, doors, etc.}.

M.2 Glass in the following positions are measured in the appropriate Sub-sections of Section XIII Wood Works and XV Steel and Metal Works:

(a) Fixed and demountable partitions

(b) Office partitions

(c) Shop fronts

(d) Curtain walling

(e) Furniture and fittings etc.

{(f) Windows and glazing doors}

2.

3.

{Glazing

<>

1. Panes area ≤ 0.15 m2

2. Panes, area > 0.15 and ≤ 4.00 m2

3. Panes > 4.00 m2

1. Type, quality and thickness of glass stated

Unit: m2}

XXI

PAINTING

2.

3.

Painting on pipes and conduits

{1. Bore > 100 mm, diameter stated

2. Bore > 50 mm and ≤ 100 mm diameter

3. Bore ≤ 50 mm, diameter}

Painting on eaves gutters

{1. Size stated

Unit: m

1. Surfaces, girth > 300 mm

Unit: m2

2. Surfaces, girth ≤ 300 mm

Unit: m

3. Isolated surfaces ≤ 0.50 m2, irrespective of girth

Unit: nr

XXII

LANDSCAPING

(f)

Green Planting Systems

1.

2.

{Vertical green wall systems

Horizontal green roof systems

1. For proprietary systems, catalogue reference, components of the system and background for fixing stated

Unit: m2 or Set

2. For other systems, each component of the system is measured in accordance with the measurement rule in the appropriate Section.

M.1 Plants are measured separately.

M.2 Measured the area covered by the green planting system.}

(g)

Statues, Sculptures and Stone Features

1.

2.

3.

4.

{Statues

Sculptures

Stone features

Others

1. Catalogue reference or dimensioned description and method of fixing

Unit: nr or Set

C.1 This work is deemed to include the provision of any additional framing support required for securely fixing into position.}

<Comment: The framing support should be described.>

                     

 

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