Chippy Tools vs Kerf Construction Calculator

Chippy Tools is the must-have calculator for carpenters and handy folks looking to simplify math on the job. Whether you're on your iPhone or iPad, Chippy Tools is for you. Its user-friendly design lets you focus on carpentry while the app handles the math. Perfect for architects, builders, carpenters, construction workers, contractors, designers, engineers, tradespeople, and woodworkers of all kinds, Chippy Tools speeds up common calculations with precision. Save time and cut costs by reducing site errors. WHAT IS A CHIPPY? In Australia, carpenters are often called Chippy. WHY CHIPPY TOOLS? Our mission at Chippy Tools is to redefine top-notch apps for carpenters. We aim to develop a sustainable business model, adding new calculations to keep saving you time and money. FEATURES • Baluster spacing calculator - Quickly calculate spacing for flat runs. • Flat run attached baluster calculator - Simple, fast calculations for attached balusters. • Supports millimeters, feet, and inches. PREMIUM FEATURES (Requires Subscription) • Square calculator - Ensure structures are perfectly square. • Concrete calculator - Calculate concrete needed for slabs and posts. • Dumpy level calculator - Find relative level from benchmarks. • Equal spacing calculator - Calculate even spacing effortlessly. • Gravel calculator - Determine gravel volume needed. • Pitch calculator - Calculate pitch with rise and run. • Raked wall calculator - Measure raked walls using height or pitch. • Running calculations - Enter start number and interval. • Soil calculator - Find soil volume for landscaping. • Stair calculator - Calculate going, stringer, and rise for stairs. • Triangle calculator - Solve triangle measurements with ease. FEEDBACK Want a new calculator? Email us at feedback@chippy.tools. NO ADS EVER We promise no ads in Chippy Tools. Enjoy the best experience for your purchase. SUPPORT Got questions or feedback? Contact us for free tech support at support@chippy.tools. If Chippy Tools aids you, please leave an App Store review to help others find it. Subscription Terms of Service: https://chippy.tools/terms/ Proudly made in Brisbane, Australia.

Kerf Calc is the construction field calculator that just works — offline, no account, no subscription. Buy it once. FEET-INCH-FRACTION, DONE RIGHT Punch dimensions the way you measure them: 8' 4-1/2" — add, subtract, multiply, divide, and read the exact result to your set fraction (1/8 to 1/64). Do real area and volume on the tape: 10' × 8' = 80 sq ft, × 4" = 26.67 cu ft. EVERY TRADE, ONE APP • Framing — rafters (actual cut: line + overhang − ½ ridge, plus hip/valley/jack), stairs to IRC/IBC code with live riser/tread/headroom checks, right-angle & pitch • Concrete — slabs, footings, columns: yards, bags, ready-mix trucks, control joints, plus a waste allowance • Rebar — ASTM A615 sizes, weights, slab-mat, laps • Pipe — offsets (travel, run and the fitting multiplier at 45°, 22½°, 11¼° or any angle), rolling offsets, cut length from your own take-outs, and drainage grade in in/ft, percent, 1:N or degrees • Materials — roofing squares, drywall, paint, block, brick, mortar, pavers, board feet, compound miter • Convert — feet-inch ↔ decimal ↔ metric (NIST-exact) ON YOUR WRIST The Apple Watch app carries all 20 calculators. Turn the Digital Crown to set a dimension and the answer is already on screen — rafter cuts on a roof, grade in a trench, bag counts at the pour. Runs on its own, with no phone and no signal. SHOWS ITS WORK Every calculator shows the actual formula and the code or standard it cites (IRC, IPC/UPC, ASTM, NIST, ACI, NCMA, framing-square tables) — so you can trust the number, not just take it. BUILT FOR THE JOB SITE Sunlight-readable light design, glove-sized keys, works with zero signal. iPhone, iPad, Apple Watch, and Mac. Not certified engineering — a field calculator. Verify against your locally adopted code.