ESTIMATING AND COSTING QUIZ

Internal shaft for sanitary installations up to 2 sq m. in area

Lift and wall including landing

Area of the walls at the floor level

Area of cantilevered porch

60 cm

70 cm

75 cm to 80 cm

80 cm

Partly in excavation and partly in embankment

Fully in embankment

Fully in excavation

All of these

Room area

Courtyard area

W' Area

Wall thickness

All listed here

Length of short walls in-to-in is 3.20 m

The total length of centre line of four walls is 20 m

Length of long wall out-to-out is 6.80 m

0.02 sqm

0.04 sqm

0.03 sqm

0.01 sqm

Preliminary estimate

Plinth area estimate

Detailed estimate

Cube rate estimate

Specifications of works

All of these

Proportion of mortar

Specifications of materials

Main soil pipe

Bottom of P trap W.C.

Side of water closet

Top of P trap W.C.

5.0 sqm

10 sqm

7.5 sqm

2.5 sqm