Calculators
Quick tools for working out quantities before you order. Everything is worked in metric with an imperial option, and the results round up, because nobody wants to be half a bag short on a Sunday.
Gravel calculator
Work out how much gravel you need to fill an area to a given depth, in cubic meters, tons and bulk bags.
Sub-base calculator
Work out how much Crushed Stone No. 57 or Type 1 aggregate you need, including the allowance for compaction. Loose stone loses roughly a fifth of its volume once it is properly compacted.
Area converter
Convert between square feet and square meters, and the other units that come up when you are pricing a job.
Slope calculator
Convert a slope between percentage, ratio and degrees, and work out the fall over a given distance.