For a feasibility study, your Insitu Concrete breakdown is 15% labour, 80% materials and 5% fixed costs,
and your Formwork breakdown is 80% labour, 20% materials and 0% fixed costs.
Constants assume five uses of formwork.
Where the number of uses is less, the constants should be adjusted by the percentage shown:
Rates include fabrication, fixing in place and striking.
Formwork to sides of
Column/pier foundations
Strip footing
Attached beam
Column
Lintels and beams
Wall
Formwork to soffit of
Suspended slab
Stairs and landings
Formwork to edges, vertical or horizontal
0–100mm high
100–200mm high
200–300mm high
Form groove
25mm x 25mm
Form rebate
100mm x 50mm
Form hole/opening in concrete 100/200mm thick, size:
100mm x 100mm
300mm x 300mm
500mm x 500mm
Form hole/opening in concrete 200/300mm thick, size:
100mm x 100mm
300mm x 300mm
500mm x 500mm
Tube formers, cardboard, including stripping
300mm ID (internal diameter)
500mm ID
Spirally wound plastic tube, including stripping
300mm ID
500mm ID
