Construction Calculator: Feet

Add 3' 4-1/2" and 7' 9-3/8" in two taps. Get 11' 1-7/8". No decimals, no converting, no mistakes. Construction Calculator does the feet-inch-fraction math your phone's calculator can't — and the material estimates you're working out on the back of a board. BUILT FOR THE JOBSITE • Big keys you can hit with gloves on • High contrast, readable in direct sun • One thumb, two taps, phone back in your pocket • Works with no signal — everything runs on your phone FREE • Feet, inch and fraction calculator — add, subtract, multiply, divide • Concrete slab — cubic yards and an exact bag count • Area and volume — square feet, cubic feet, cubic yards • Squaring — the diagonal you should pull, and how far out you are • Converter — feet, inches, yards, metres, centimetres, millimetres PRO — ONE PAYMENT, YOURS FOREVER • No ads, ever • Roof pitch and rafter — rise, common rafter length, angle • Stair layout — risers, treads, total run, stringer • Board feet — lumber quantity and cost • Materials — paint, drywall and tile counts • 1/32" and 1/64" precision • Tape history — every calculation saved, tap one to reuse it No subscription. No account. No sign-in. EXACT FRACTIONS, NOT DECIMALS Most calculators turn 3/8 into 0.375 and hand the rounding back to you. This one works in exact sixteenths, thirty-seconds and sixty-fourths from the first keystroke to the last. Every answer lands on a mark you can actually cut to. ESTIMATES THAT TAKE YOUR SIDE Concrete includes 10% waste and rounds bags up, because half a bag pours nothing and running short mid-pour costs more than a spare bag ever will. Stair risers come out exactly equal and under the 7-3/4" code limit — an odd step is a trip hazard, not a rounding detail. Board feet are figured on nominal size, the way the yard bills you. WORKS OFFLINE, ALWAYS No account, no cloud, no server. Basements, new builds, the middle of nowhere — the app does not care. Your measurements never leave your phone. Made for framers, carpenters, concrete crews, remodelers, deck builders, roofers, and anyone who works in feet and inches.