Stringline vs Sixteenths

Construction calculator that works in feet, inches, and fractions — matched to 1/64". Download for free. No subscription. No ads. Works offline. 14 SPECIALTY CALCULATORS Stair Layout — rise, run, stringer, angle. IRC and OSHA code check built in. Concrete — cubic yards and bag counts for slabs, footings, columns. Rafter Length — common, hip/valley, jack. Plumb cut, seat cut, overhang. Equal Spacing — every position for studs, balusters, posts, joists. Compound Miter — blade tilt and miter angle for crown and trim. Studs / OC — count and positions for any wall at 16" or 24". Pitch / Slope — pitch, degrees, grade, and roof factor. Baluster Spacing — count, gap, and positions. IRC 4" sphere test built in. Board Feet — lumber volume from nominal dimensions. Drywall Estimator — sheets, waste factor, and opening deductions. Roofing Calculator — squares, bundles, and sheathing for any roof pitch. Right Triangle — check square on any corner. Two sides in, all angles out. Area & Volume — rectangles, circles, triangles, trapezoids. Conversions — feet-inches, decimal feet, metric. HOW IT WORKS Three calculators are yours to keep — Right Triangle, Area & Volume, and Conversions — with the full keypad, memory, and paper tape. No limits, no catch. The other 11 Pro calculators (stairs, concrete, rafters, and more) come with 5 uses so you can try them on a real job. One purchase unlocks everything permanently. YOUR TAPE READS FRACTIONS. SO DOES STRINGLINE. Enter 12' 3-1/2" exactly how you say it. No converting to decimals, no rounding surprises. Integer 64ths arithmetic — every answer matches your tape, not a floating-point guess. BUILT TO BE TRUSTED • Shows the math — step-by-step so you can verify every answer • IRC and OSHA validation with code section citations • Every formula verified against building code standards before release • Paper tape and full calculation history • PDF export with Show My Work steps • Works completely offline — no internet, no accounts No subscription. No ads. Built for tradespeople who can't afford a wrong number.

Sixteenths turns tape-measure math into instant answers. Type 12' 6-3/4" the way you say it, get exact fractions back, and cut it right the first time. Built for carpenters, framers, remodelers, and anyone who thinks in feet and inches. Stop scribbling math on drywall. Stop trusting a phone calculator that turns 3/16" into 0.1875 and rounds your cut wrong. Sixteenths does construction math the way the trades actually work — try it free, and keep it on whatever terms suit you. ► EXACT FRACTION MATH Feet, inches, and fractions are first-class keys Every value stays a true fraction — never off by a 1/16" Resolutions from 1/2 down to 1/64 Instant conversions: yards, meters, cm, mm, board feet ► TEN JOBSITE SOLVERS* Stairs — risers, treads, stringer, opening from one measurement Roof Pitch — pitch, angle, rise, run, diagonal Hip & Jacks — hip/valley length and every jack cut to length Concrete — yards, bags, waste, and what to order Balusters, Circle & Arc, Compound Miter, Materials, Board Feet ► A TAPE THAT REMEMBERS* Every result saved automatically, with its exact value Name the numbers that matter — "Stair riser," "Garage slab" Recall them days later, still dead on ► BUILT FOR THE JOBSITE Works fully offline — basement, crawlspace, forty minutes past coverage No account, no sign-in, no ads, no tracking Your numbers never leave your phone ► WHO IT'S FOR Carpenters, framers, GCs, remodelers, deck builders, stair builders, roofers, concrete crews, finish carpenters, serious DIYers — anyone who measures in sixteenths. *Solvers and the tape are part of Sixteenths Pro. ► FREE TO TRY. YOURS ON YOUR TERMS. Download and start calculating — no card, no account. The calculator gives you ten free calculations to prove the math before it asks for anything. Sixteenths Pro unlocks unlimited calculations, all nine solvers, and the tape: • Yearly — $49.99/year, with a 3-day free trial • Monthly — $4.99/month, cancel anytime • Lifetime — $99.99 once, yours forever Every plan includes every solver we add after it. Tied to your Apple ID, restores free on any new device. Subscriptions renew automatically unless cancelled at leastof the current period. Manage or cancel anytime in your Apple ID settings. Built for the tool pouch. Download Sixteenths and measure once, cut once. Questions? support@sixteenthsapp.com Privacy Policy: https://www.sixteenthsapp.com/privacy Terms of Use: https://www.sixteenthsapp.com/terms