Feet, Inch Calculator: Sawline

The construction calculator you buy once. Sawline does feet-inch-fraction math exactly. Feet, inches and fractions are held as exact rationals rather than decimals, so 1/3 of 8 feet comes back as 2' 8" and sixteen risers add up to the total rise you entered, not to a sixteenth less. Set the display resolution anywhere from 1/2 to 1/64. Enter a run and a pitch, get the rafter. Enter a total rise, get the stair. Open any result to see the formula with your own numbers substituted into it. FRAMING AND ROOFING Common rafters, regular hips and valleys, and jack schedules built from the full-precision common rather than a rounded step. Unequal-pitch hips, where the plan angle is not 45 degrees and the two cheek cuts do not add up to 90. Plumb, seat and cheek cuts, hip backing and drop, bird's mouth with HAP and throat, ridge deduction, overhang, rake walls and gable studs. Pitch as ratio, angle, percent or slope. STAIRS Riser and tread solving, run-limited and riser-limited, with "it does not fit" treated as a real answer that names the binding constraint. Stairs with a landing, and multi-flight layouts where every flight is solved and checked on its own. Stringer length, angle and throat. Stairwell opening with its measurement datum stated. Layout marks you can take to the board. The code report checks the geometry against IRC 2021, IRC 2024 or your own local amendment, and prints the actual value, the required value and the section number on every row. MATERIALS Concrete by volume or by bag, block and brick, stud takeoffs, sheet goods, board feet, rebar, roofing squares and bundles, siding, decking, tile and paint. Waste is its own visible line, never folded into the total. CUT ANGLES Compound miter and bevel for crown at any spring angle and any wall angle, nested or flat, plus polygons, hoppers, tapered work and baluster spacing. Every saw setting names the board orientation it assumes, because the same cut is a different number flat on the table than it is on edge against the fence. THE TRADES, INCLUDED Voltage drop and box fill. Pipe offsets, rolling offsets, volume and slope. Duct sizing, equivalent round and air heat. Bolt circles, tap drills, sine bar, speeds and feeds. All four sets come with the one unlock. There is nothing else to buy. BUILT FOR THE JOBSITE Works with no signal. Keeps the screen awake while you work. Keys sized for gloves. Every material constant shows its source and the date it was retrieved, and you can override any of them. Manufacturer figures and estimates are marked differently, because they are different things. PAY ONCE. IT'S YOURS. One payment unlocks everything, permanently, including every future version. No subscription, no renewal date, no account, no ads and no tracking. After the 14-day trial the core calculator keeps working and never expires: all feet-inch-fraction arithmetic, the tape, unit conversion, area and volume, board feet and the common rafter. PLEASE NOTE Sawline validates geometry against the ruleset you select. It is not a code review and it does not replace your building official. NEC and IRC tabular data is copyrighted and is not reproduced here; those calculators use the table value you enter and state which value was used. Terms of use (EULA): https://sawline.ripeseed.io/terms/ Privacy policy: https://sawline.ripeseed.io/privacy/