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MECHANICAL ENGINEERING AND INDUSTRY

QUANTITY TAKE-OFF

PROCEDURE

8/9/2019 q-takeoff


MECHANICAL ENGINEERING AND INDUSTRY

QUANTITY TAKE-OFF

PROCEDURE

Rev Date Revision Description By Checked Approved

0 4/12/2001 Issued for Implementation R.G.H. A.G. M.KH.

1 2/10/2002 DAR Logo Reised R.G.H. A.G. M.KH.

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TABLE OF CONTENTS

1. Introdut!on

". In#trut!on#

$. Gu!d% Not%#

Att&'(%nt A – Standard Take-off Sheets

Att&'(%nt B – Guidelines for the Preparation of

Method of Measurement (MOM)

Att&'(%nt C – Sample BOQ

Att&'(%nt D – Method of Calculatin !uct "rea

Att&'(%nt E – Sample Take-off Stamp

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1.1 Pur)o#%

1." D%*!n!t!on#

1. INTRODUCTION

This $ooklet pro%ides proceduresand standard forms to $e used $&

the desin enineers and

draftsmen for 'uantities take-off

and preparation of the

mechanical $ill of 'uantities

The intent of these procedures

and standard forms is to assure

that 'uantities are measuredaccuratel& and consistentl&

amon all enineers and 'uantit&

takers

The proect enineer is

responsi$le for ensurin that

these procedures and forms are

used* and 'uantities are accurate

and checked

T&+%-o** Dr&,!n# draft +,or

Tender that are coordinated and

sined $& the draftsman and the

proect enineer

Qu&nt!t/ T&+%r a draftsman

assined $& the proect enineer

to measure and take off the

'uantities from the +Take-Off prints

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".1 R%#)on#!0!!t!%#

"." 2T&+%-O**3 Pr!nt#

".$ 2T&+%-O**3 S'%%t#

". INSTRUCTIONS

Proect enineer shall $eresponsi$le for manain the

'uantit& take-off task* orani/in

the forms of $ills in coordination

0ith the MCC and PM* and

e1ercisin the necessar& checks

on the measured 'uantities

Proect enineer shall prepare a

set of draft final dra0ins* stampit +Take-Off Prints and i%e it to

the assined 'uantit& takers

2ach print shall $e sined after

completion of the take-off $& the

assined draftsman and proect

enineer

The complete set of take-off

prints shall $e kept 0ith the

proect enineer in a la$eled file

indicatin the proect no and

+Take-Off Prints and Sheets

,illed in Take-Off sheets (as per

the attached standard forms) shall

$e sined $& the 'uantit& taker

and the proect enineer and $e

kept also in the take-off file 0iththe prints

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".4 M%t'od o* M%&#ur%(%nt

5MOM6

".7 B! o* Qu&nt!t!%# 5BOQ6

The proect enineer shall make

sure that he and the 'uantit&

takers are full& a0are of the

details of the standard MOM (as per the cop& included in

"ttachment B)* and that the

'uantities of the items that are

not included 0ith other items

rate* are all identified and

measured separatel&

The proect enineer shall $e

responsi$le of preparin the $illsof 'uantit& in the re'uired final

form $ased on the 'uantities of

the take-off sheets usin the

procedure set for in the Q"

manual 3e shall also do the

necessar& checks and transfers

the $ills to the MCC as per the

set procedures

The form of the Standards

Mechanical Master Bill is as per

the e1tracts included in

"ttachment C

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$.1 M%&#ur!n Qu&nt!t!%# *ro(

2T&+%-O**3 Pr!nt

5Dr&*t#(&n6

$." 2T&+%-O**3 S'%%t# 8 Pr!nt#

$.$ C'%+!n Qu&nt!t!%#

$.4 M%&#ur!n P!)% Br&n'%#

$. GUIDE NOTES

5hen measurin 'uantities from

dra0ins* the measured items

shall $e marked in &ello0 color*

and 0hen a dra0in is full&

measured* the same e1ercise

should $e repeated tickin in red

a$o%e the measured items

The +Take-Off sheets related toa dra0in should $e sined $&

the draftsman and attached to the

+Take-Off print Once done* it

should $e passed to the P2 for

checkin Once checked* the P2

shall sin the sheets +Checked

and put the sheets and print in the

take-off file

5hile checkin the 'uantities the

P2 shall e1ercise spot checks on

each Take-Off print and compare

the measured 'uantities 0ith

kno0n 'uantit& indicators

,or measurin pipe %ertical

$ranches consider the follo0in

ele%ations of fi1tures connections

from finished floor le%el6

9&#t% 5(6 9&t%r 5(6

- BT - 78

- 9": 4; ;8

- S<=> 4; ?8

- MS*S .8 ?8

- 25C (,T) #8 48

- 25C (,:) #8 @8

- A 48 #;

- S3 - 88

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$.7 M%&#ur!n Dut,or+

$.: Ao,&n%# on M%&#ur%d

Qu&nt!t!%#

9&#t% 5(6 9&t%r 5(6

- B #8 #8

- 5T* 3B - 48

- !, ;8 ;8

- 9o0 le%el%ent main

#8 -

- ,3C - #8

- 9o0 9e%el

5ater main

- ;8

,or measurin the duct0ork refer

to the method indicated in

"ttachment !

,or duct 0eiht use an& of the

certified soft0are prorams

The follo0in safet& allo0ances

should $e applied

- !uct0ork #@D

(allo0ed for in the

soft0are proram) for

oints* supports and 0aste

-Pipin 8D

- Pipe insulation ;D

- !uct insulation 8D

"lso allo0ances should $e made

for unforeseen 'uantities for the

follo0in items6

-<solatin and drain %al%es(#-#; dn) 8D

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$.; T'!n# to 0% Con#!d%r%d

Plumbing P&/ Att%nt!on *or t'% M&t'

L!n%# &nd not to Du)!&t%

It%(#

− Grates and frames for

trenches are to $e

counted in linear meters

and accordin to the

0idth (e16 488 mm ⇒

0ide ;8 m)

− 5hen measurin the

pipin* take intoconsideration the sla$

thickness and the e1act

heiht of the floor <n

addition* the ,loor

!rain and floor

cleanouts drop and trap

should $e measured

216 the floor cleanout

drop $elo0 sla$ 0iththe el$o0 is around E8

cm) 3o0e%er this

should $e e1actl& taken

from the details sho0n

on the correspondin

dra0ins

− 5hen measurin

pipin* the lenth

should $e taken across

all %al%es and fittins

216 for the pumps* pipe

lenth starts from the

dischare of the pump

across all fittins

− On the as $uilt

dra0ins* the C<9 and

the ,<9 are al0a&s

sho0n These should $e

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e1actl& taken for the

rises and drops of the pipes 216 0hen the

pipe is mo%in at C<9

;88 and then drops to

,<9 888 and theheiht of the floor is

.;88 this means that

&ou ha%e to su$tract

the C<9 and the ,<9

from the heiht of the

floor ie .;88 – ;88 –

888 F #888 or the

pipe should drop $&

# m− The most important

thin is to make sure of

the sanitar& details

,ollo0 the as $uilt

dra0in concernin this

topic ie le%el of

fi1ture from ,,9 to $e

considered

− The fire hose ca$inet

pipe should $e

calculated in the

follo0in manner6 pipe

drops from a certain

ceilin le%el to ,,9 F

888 then add 84

84E F 8@E m

,3C !etail6

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HVAC

− Sprinkler drop or rise

(pendant or upriht)should $e measured

Sometimes #8 cm*

sometimes 48 cm*

sometimes @8 cm <n

addition to the rise of

the pipe itself to

distri$ute thru

sprinklers Check the

detail

− !rainae outside

$uildin should $e

separate These pipes

are those from the

$uildin to the <CHs and

the connection $et0een<CHs

− :C pipes should rise

around m a$o%e roof

P&/ Att%nt!on *or t'% M&t'

L!n%# &nd not to Du)!&t%

It%(#

−

!uct0ork should $ecarefull& measured

takin into

consideration all drops

and rises* C<9 le%els*

sla$ thickness and e1act

heiht of floors <n

addition* duct end

should $e taken as si/e

0ith lenth /ero 216

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− ecommended duct

0eiht proram is the

e1cel %alidated

proram

− "ll mi1in $o1es and plenum $o1es on

"3AHs and on Slot

linear diffusers are to $e

taken

− ,le1i$le ducts are to $e

measured as linear

meters not as counta$le

item

− !umm& linear diffusersare to $e taken

− 5hile measurin the

pipin on "3AHs* $e

careful for the drops

and rises of the pipes $&

readin all the sections

("-"* B-BI) taken

from the plan

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ATTACHMENT A

St&nd&rd T&+%-O** S'%%t#

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PLUMBING

T&+%-O** S'%%t#

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H<AC

T&+%-O** S'%%t#

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ATTACHMENT B

Gu!d%!n%# *or t'% Pr%)&r&t!on o*

M%t'od o* M%&#ur%(%nt 5MOM6

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ATTACHMENT C

S&()% BOQ

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ATTACHMENT D

M%t'od o* C&u&t!n Dut Ar%&

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ATTACHMENT E

S&()% T&+%-o** St&()

Documents

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