Framing Calculators

Professional Framing Calculators for Contractors & DIYers

Framing is the backbone of every construction project. Whether you are building a new home, adding a deck, or finishing a basement, accurate layout measurements save time, reduce waste, and keep your project up to code. Our framing calculators cover the most common layout challenges that carpenters and framers face on the jobsite every day. Use the stair calculator to optimize riser height and tread depth for code-compliant stairs. The rafter calculator handles common, hip, valley, and jack rafters with plumb-cut and birdsmouth dimensions. Need to frame a rake wall? The rake-wall calculator generates a complete stud cut list. The compound miter calculator solves crown molding and angled trim joints, while the baluster calculator ensures your railing spacing meets the 4-inch sphere rule. Every calculator runs entirely in your browser with exact fractional arithmetic — no rounding errors, no app download, no subscription. Results display in feet-inches-fractions, decimal, and metric formats so you can work in whatever units your plans call for.