RafterMate: Construction Calc

RafterMate is the construction calculator you buy once — no subscription, no account, no ads. Built for carpenters and framers, it does the feet-inch-fraction math you do all day, then adds the trade tools you actually reach for — each on its own visual screen with a live blueprint diagram, accurate to 1/16". THE CALCULATOR - Feet-inch-fraction, decimal feet, yards and metric - add, subtract, multiply, divide - Paperless tape that remembers every step - Area, volume, square feet and cubic yards THE PRO TOOLS (one-time unlock) - Rafter - run + pitch to rafter length, plumb/seat/birdsmouth cuts, ridge and overhang - Stair - total rise to risers, treads, stringer length and the bottom-riser drop, with live IRC code warnings - On-Center - wall length + 16"/19.2"/24" spacing to stud/joist counts, mark positions and wall-framing material - Roofing - roof area to squares, shingle bundles and sheathing - Area & Volume - slabs, footings and piers to square feet and cubic yards of concrete - Board Feet - thickness x width x length to board feet and cost - Deck - joists, beam, posts, footings and decking, with IRC joist-span checks - Concrete - slab, footing or round column to cubic yards and premix bags - Cut List - your pieces + stock lengths to a waste-minimizing, kerf-aware cut plan - Miter - crown and corner miter + bevel angles WHY RAFTERMATE - Buy once. No subscription. Ever. - Works fully offline - no account, no sign-in - Universal - one purchase covers iPhone and iPad - Validated against pro reference math to 1/16" Pay once, open to the calculator, get to work.