15 HDB SOR

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    STANDARD SCHEDULE OF RATES FOR

    BUILDING WORKS,

    CIVIL ENGINEERING WORKS AND

    ELECTRICAL WORKS

    (JUL 2015 EDITION)

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    STANDARD SCHEDULE OF RATES

    FOR

    BUILDING WORKS

    (JUL 2015 EDITION)

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    HOUSING AND DEVELOPMENT BOARD

    STANDARD SCHEDULE OF RATES

    FOR

    BUILDING WORKS (JUL 2015 EDITION)

    CONTENTS

     

    S/N DESCRIPTION PAGE

    GENERAL PREAMBLES 1 - 3

    PARTICULAR PREAMBLES TO VARIOUS TRADES 4 - 18

    1 EXCAVATION 19 - 21

    2 CONCRETE WORK 22 - 31

    3 BRICKWORK AND BLOCKWORK 32 - 33

    4 FLOOR FINISHES 34 - 39

    5 ROOFING 40 - 41

    6 CARPENTRY AND JOINERY 42 - 46

    7 IRONMONGERY 47 - 49

    8 STRUCTURAL STEELWORK & METALWORK 50 - 65

    9 WALL AND CEILING FINISHES 66 - 67

    10 SANITARY, WATER AND GAS INSTALLATION 68 - 85

    11 GLAZING 86 - 87

    12 PAINTING AND DECORATING 88 - 89

    13 TURFING, TREE PLANTING & LANDSCAPING WORKS 90 - 92

    14 MISCELLANEOUS 93 - 95

    15 DAYWORK 96 - 98

    Published by Housing and Development Board, Republic of Singapore.

    No part of this document may be reproduced or copied in any form or 

    by any means without the prior written permission of the publisher.

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      Page 1 of 98

    GENERAL PREAMBLES

    Introduction

    1.1 The clauses in the General Preambles shall apply to all work items

    contained in the Standard Schedule of Rates.

    1.2 The Particular Preambles to each Trade shall be read in conjunction with the respective Trade in the Standard Schedule of Rates.

    1.3 All rates include the allowances for complying with the General and Particular Preambles.

    2 All rates contained in the Standard Schedule of Rates are fixed basic rates (in Singapore Currency) and no amendment whatsoever shall be made to such rates. The tenderers shall be deemed to have closely studied all rates contained herein and duly noted their implications.

    3 All rates contained in this Standard Schedule of Rates are exclusive of any Goods and Services Tax. Any such Goods and Services Tax shall be borne by the HDB as and when the same becomes due and payable.

    4 All work, materials and goods described in this Standard Schedule of Rates shall be of the respective kinds described in the Contract and in accordance with the instructions of the Superintending Officer or the Superintending Officer's Representative.

    5 Headings to groups of items shall be read as part of the descriptions of

    the items to which the headings apply.

    6 Where brand/trade names are given in the descriptions, they are solely intended for fixing the rates of the items. The products and materials to be used in the contract shall be governed by the specifications, Drawings and other documents forming the contract (and not this Schedule of Rates).

    Description of Works and Inclusions

    7 Unless specifically stated otherwise, the following shall be deemed to be included in the description of the item of work:-

    a) Labour and all costs in connection therewith including the labour in fabricating, assembling, setting, fitting and fixing of materials and goods in position.

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      Page 2 of 98

    GENERAL PREAMBLES

    Descrip tion of Works and Inclusions (Cont’d) 

    b) Materials and goods including materials required for lapping,

     jointing and the like and all costs in connection therewith such as delivery, unloading, storing, returning of packings, handling, hoisting and lowering.

    c) Preparing surfaces to receive work.

    d) Protecting materials and work.

    e) Waste of materials.

    f) All cutting and waste.

    g) Use of construction equipment, tools, vehicles and all costs in connection therewith.

    h) Cleaning up on completion and making good all work disturbed.

    i) General requirements set out in the Specifications, Drawings and other documents forming the Contract.

     j) Establishment charges, overhead and profit.

    8 Unless otherwise stated, all work shall be measured net as fixed in its

    place.

    9 Where minimum deductions of voids are dealt with in this document they shall refer only to openings or voids which are within the boundaries of measured area. Openings or voids which are at the boundaries of measured area shall always be the subject of deductions irrespective of size.

    Billing of Quantities  10.1 Where the unit of measurement is the linear metre, square metre and

    cubic metre, quantities shall be billed to the nearest whole unit. Fractions of the unit less than half shall be disregarded and all other fractions shall

    be regarded as a whole unit.

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      Page 3 of 98

    GENERAL PREAMBLES

    Billing of Quantities (Cont'd) 

    10.2 Where the unit of measurement is the kilogramme, quantities shall be

    billed to the nearest whole unit. Fractions of a unit less than half shall be disregarded and all other fractions shall be regarded as a whole unit. Where the unit of billing is the tonne or litre, quantities shall be billed to the nearest two places of decimals.

    10.3 Where the unit of measurement is the hour, fractions of the unit shall be billed to the nearest next half hour.

    10.4 Where the application of clauses 11.1 and 11.2 would cause an entire item to be eliminated, such item shall be billed to the nearest two places of decimals.

    11 Where rates with descriptions pertain to the same purpose are listed in more than one Standard Schedule of Rates incorporated in the Contract; the rate as listed in the following schedules (in the stated order of precedence) shall prevail:-

    1st Precedence - Standard Schedule of Rates for Building Works

    2nd Precedence - Standard Schedule of Rates for Civil Engineering Works

    3rd Precedence - Standard Schedule of Rates forElectrical Works

    12 Unless otherwise stated, the term "as specified" means as specified in any of the documents forming part of the Contract.

    13 The following abbreviations are used for the units:-

    m - Linear metre m2  - Square metre m3  - Cubic metre no - Number

    kg - Kilogram ton - Tonne pr - Pair sht - Sheet ltr - Litre hr - Hour

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    PARTICULAR PREAMBLES TO VARIOUS TRADES

    1.0 EXCAVATION 

    Definition of Ground 

    1.1 Ordinary ground:- includes spoil or rubbish of every description, rubbish tip material etc, sand gravel, decomposed granite, red or white earth, loamy or gravelly clay, gravelly laterite, mud, bog or any other formation of pick and shovel and at any depth.

    Description  1.2 The description of each item of excavation shall be deemed to include

    excavating around foundation, piles and confined areas, getting out, removing of bakau piles, trimming, levelling and compacting bottoms of excavations, keeping sides plumb and planking and strutting.

    Measurement  1.3.1 The measurement of all excavations and subsequent disposal shall be

    those before excavating. The increases in bulk and any extra excavation required for earthwork support, planking and strutting and formwork for concrete shall be deemed to be included in the rates.

    1.3.2 No allowance for working space shall be made in the measurement of all excavation unless the method of construction requires workmen to operate from the outside of the structure. In such cases, a working space of 600mm shall be measured from the external face of the structure.

    1.3.3 Filling shall be measured as equal to the void to be filled. Any thickness

    stated shall be deemed to be after compacting.

    Rate  1.3.4 Rates for each item shall be held to include for keeping all excavation free

    from water and site dry, pumping or bailing if required and providing any temporary drains required.

    1.4 Pre-Treatment of Soil against Subterranean Termites  

    Measurement 1.4.1 Soil treatment shall be measured flat on plan and the method of

    measurement shall be up to the perimeter of the building line (excluding

    the apron areas). Link buildings, linkways and other structures shall also be similarly measured.

    1.4.2 No deduction shall be made in the measurement for plan areas occupied by the column stumps.

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      Page 5 of 98

    PARTICULAR PREAMBLES TO VARIOUS TRADES

    1.0 EXCAVATION (CONT’D) 

    1.4.3 The rates indicated shall be inclusive of the provision of warranty and

    shall not in any way affect the provisions of Building Specifications on Pre-Treatment of Soil for Protection of Buildings Against Subterranean Termites which provisions remain applicable in every respect in relation to all situations where these rates are applied.

    2.0 CONCRETE WORK 

    Rate  2.1 Rates for each item of concrete shall be held to include the following:-

    a) Forming, cutting grooves, chases, mortices, holes and making good any other sundry items of a like nature.

    b) Extra labour for laying to falls, or cambers and preparing surfaces to receive screeds or pavings also to be included.

    c) All tests on concrete, cement and aggregate etc, as required and compl