Calculate the exact number of bags needed for your slab or post-hole project.
Bags Required0
Volume: 0.00 m³
Total Weight
0 kg
Including wastage
Bulk Bags
0.0
850kg equivalent
Yield
~0.01 m³
Per single bag
Builder’s Tip: Standard UK concrete mix (1:2:3) has a density of approx. **2,400kg per m³**. Always allow for a small amount of spill or uneven ground by using the **5% wastage** option.
