Trade calculators ยท always free
On-site calcs
Calculators for every trade that show their working. They run right here in your browser.
Carpenter
14 toolsEqual Spacings
Evenly space items along a run.
Baluster Spacing
Baluster count and even gaps under the max-gap rule.
Asphalt
Tonnes of asphalt for an area and depth.
Check Square
Diagonal a square corner should measure (3-4-5).
Concrete Quantities
Slab or footing volume and premix bags.
Decking
Board rows, linear metres, and fixings.
Dumpy Level
Reduced level from backsight and foresight.
Gravel
Volume and tonnes of gravel for an area.
Pitch
Roof pitch angle, ratio, and grade from rise and run.
Raked Walls
Stud lengths stepping up a rake.
Running Measurements
Cumulative set-out marks along a run.
Soil
Soil or fill volume for beds and levelling.
Stairs
Risers, riser height, and going from total rise.
Triangles
Right-triangle solver for set-out.