I remember when we had soil report done, they said the soil was bad so they had to increase the footing level or smth like that. On the contract it has:
- External beams up to 450mm deep x 300mm wide with 6 x N12 steel reinforcing rods
- Internal beams up to 450mm deep x 250mm wide with 4 x N12 steel reinforcing rods
- Use of single concrete pump if required for main single level slab pour only.
- 100mm thick 20MPA reinforced concrete slab with 1x layer of SL72 steel mesh.
Mind you, i dont even fully understand what they mean. Erm, but i did know they increased a couple thousand on to the provisional sum allowance for footings and site works variations... I hope it won't be a lot.