Construction calculators

Rafters, stairs, roof pitch, concrete, lumber, and layout calculators for builders and carpenters.

Common rafter length, plumb cut, and seat cut from span or rise/run.

Residential stringer layout from total rise and run.

Convert pitch, angle, and slope percent with rafter factors.

How many bags of concrete for slabs, footings, and round pours.

Cubic feet and yards for slabs, walls, columns, and round forms.

Lumber board feet, linear feet, and volume from dimensions.

Add, subtract, multiply, and divide construction measurements.

Even baluster spacing for rails and decks.

Job material lists and estimates.