CONTRACT & ESTIMATING

Concrete floor

Top and Bottom BRC in slab

Top BRC

Bottom BRC

Ground floor

150x500 ground beam

Calculate: DPM,BRC,concrete,screed

DPC to ground floor (damp proof membrane)

Floor slab m2
113 mm wide horizontal DPC in Floor slab
48
Length & width: 6.9
6.9
6.9 Less(2 x 150) 7200
6.9 300

47.61

= 6900

BRC to floor

Floor slab m2
BRC in Floor slab (10cm x 10cm)
48
Length & width: 6.9

6.9 Less(2 x 150) 7200 6.9
6.9 300

47.61

= 6900

Concrete

Floor

in Floor

Length & width: 5

6.9 Less(2 x 150) 7200 6.6
6.9 300 6.6
0.10 0.10

4.8

= 6900

Floor slab 100mm

screed to floor

Screed to Floor slab m2
Screed to Floor slab (sand: cement)
48
Length & width: 6.9

6.9 Less(2 x 150) 7200 6.9
6.9 300

47.61

= 6900

screed

- For installing the final floor finish such as tiles, hard
wood flooring,

- The optimum thickness of a sand and cement bonded
screed is 25–40mm

Wire mesh

Slab thickness



CONCRETE COVER

foundation

Pad footing Strip footing
raft footing pile

Soffit to first floor



CHAPTER 7(3) :
THE QUANTITY MEASUREMENT

Superstructure

i. Column
ii. Upper floor
iii. Roof slab
iv. Roof Beam

ITEM

- Concrete
- Formwork
- Reinforcement concrete
- Reinforcement bar
- Stirrups

Super
structure



column

Roof beam

Roof beam

Roof beam

Concrete roof slab

Reinforcement

Taking off list

Concrete in isolated column

2

Ambil sekali nilai
beam, if kira asing pun
boleh

Formwork to isolated column

atau

4/4 Width
0.3 300
3.45
Height
16.56 3450

Reinforcement bars in isolated column

Bahagian atas
antara roof beam

Links/stirrup in isolated
column

16R8 X? 77
4x + 2(12D)
Less .con cover 2/25 Width
X= 300

4 x 250 - 50
250

1000

(2 x 12 x 8)= 192

Formwork to attached beam m2

6.6 25
0.95
Girth(Lilitan)
25.08 450
150

+ 350
950

Concrete in attached beam 2
450
0.45

1.782

Reinforcement bars in attached beam

2y 12 & 3y12
3+2

Stirrups in attached beam 134

28 R 8 width

Less con cover 2/25 X = 100; 2x= 200

2x + 2y + 2(12D) Y = 450 2y= 800
-50

y = 400;

Soffit to roof slab m2

Soffit to roof slab 44
Soffit to roof slab 6.6

6.6 6.6
6.6

43.6

BRC m2

Roof slab 44
BRC in roof slab (10cm x 10cm) 6.6

6.6 6.6
6.6

43.6

Concrete to roof slab

Roof slab

Roof slab

6.6 5
6.6
0.1 6.6
6.6
4.4
0.1

Exercise

Based given drawing PSAS/JKA/FOUNDATION/01, calculate a
quantity of concrete blinding, reinforced concrete, and
reinforcement bar and links for column stump and pad footing.
Assume :
-Concrete cover for pad footing and column stump : 25 mm
-Concrete blinding thickness for pad footing: 30mm

Berdasarkan lukisan PSAS/JKA/FOUNDATION/01, kirakan
kuantiti bagi konkrit pemarasan, konkrit bertetulang, tetulang
bar dan tetulang pengikat untuk tiang asas dan papak asas.
Andaian:
-Penutup konkrit bagi papak asas dan tiang asas :25 mm
-Ketebalan konkrit pemarasan bagi papak asas: 30mm

PSAS/JKA/FOUNDATION/01

CHAPTER 7(4) :
THE QUANTITY MEASUREMENT

wall

ITEM
- INTERNAL WALL
- EXTERNAL WALL

brickwork

Brickwork thickness

- The generally accepted average size of the brick is
215mm x 102.5mm x 65mm, which with a 10mm
mortar joint become 225mm x 112.5mm x 75mm.

- Wall thicknesses:

 Half brick 102.5mm

 One brick 215mm

 One and half brick 327.5mm

 Two brick 440mm

Brick size

102.5

Common brick

Facing brick

Air brick



Stiffeners

Stiffeners-
- steel/concrete
- pada bahagian sambungan
- jarak terlalu besar (3m atau ikut

keperluan)

Stiffeners- steel

Facing brick
Air brick

Rc Stiffener

Floor Stiffener Column Form Works Installation