The Extension Slab Estimating Calculator allows you to build up layers of Labour, Material and Plant that go to build up a typical extension slab.
The Extension Slab Estimating Calculator calculates the following items:
- Preparation of substrate
- Damp proof membrane
- Concrete slab
- Associated plant
- Plus all labour associated with the above
The Extension Slab Estimating Calculator is linked to the Specification.
- You must enter any lump sum items such as plant.
- It is assumed in this Estimating Calculator that the site level has been reduced prior to preparation of the slab using the Site Strip Estimating Calculator.