Construction Calculator

Use a free feet and inches calculator app to add fractional measurements, multiply a length by a quantity, convert metric values, and reuse results.

Use a free stair calculator app to calculate rise, run, step count, tread depth, stringer length, and stair angle from familiar measurements.

Use a free roof pitch calculator app to find x:12 pitch, angle, rise, run, rafter line length, and percent slope from familiar measurements.

Use a free construction calculator app for feet, inches and fractions, with practical tools for roofs, stairs, railings, lumber, framing and layout.

Use a board foot calculator app to find board feet per piece, total lumber volume, and estimated cost from a price per MBM.

Use a baluster spacing calculator app to find baluster count, clear gap, on-center spacing, and layout marks for deck and stair railings.

Use a plywood weight calculator to estimate one sheet or a complete load in pounds, kilograms, US tons, or tonnes.

Use a free rafter length calculator app to find the rafter line from horizontal run and roof pitch, with feet, inches, fractions, and metric units.

Calculate drywall square footage for walls and rooms using feet, inches, fractions, or metric units, then prepare the area for panel planning.

Calculate concrete slab or pad volume from length, width, and thickness, including mixed metric or imperial dimensions.