Construction
Building calculators
Are you building something? These work out a size, then check it against the code where you are. Stairs, decks and insulation all have legal limits that differ by country, and a calculator that returns geometry without checking them is giving you something an inspector will fail.
Building something
Stair calculatorRise, run and stringer, checked against the IRC, IBC, UK Part K or the Australian NCC→
Roof pitch calculatorPitch to degrees, and the real sloped area above a footprint→
Deck calculatorBoards and joists, with the span checked against IRC R507→
Fence calculatorPosts, pickets, and the concrete each hole takes→
Drywall calculatorSheets, compound, tape and screws, by finish level→
Insulation calculatorR-value to thickness, by material and climate zone→