Accurate Bags-of-Concrete Results
Calculate exact concrete needs by factoring in hole depth, diameter, post volume, and a 10% waste buffer for professional results.
Industrial Precision
A sleek, app-like interface designed for North American construction sites to provide instant, rugged utility.
ProTips
Every calculation uses industry-standard 80lb bag metrics (0.60 cubic feet) for perfect site inventory.
Frost Lines
Dig below the frost line in your region to ensure your posts remain stable through freeze-thaw cycles.
Compaction
Always compact the soil at the base of the hole. Proper compaction prevents vertical settling and ensures a rigid, professional post installation.
Our logic adds 10% extra concrete to account for uneven hole walls and standard site waste, ensuring you never run short on bags.