BuildX Construction Calculator

Build faster with 8 powerful construction calculators, precise feet-inch math, stair checks, material estimates, offline access, and no subscriptions.

BuildX is the construction calculator for people who'd rather pay once than subscribe to a tool they already own.

Eight focused modules. Native fraction math. Built for the iPhone you use on the job site.

WHAT'S INSIDE

• Pro Calculator — Feet, inches, fractions. Memory keys, parentheses, percentage, square root, and a real tape you can scroll, edit, and label.

• Layout & Framing — Stair calculator with IRC code check. Common, hip, and valley rafters. Right triangle solver. Area for any shape.

• Materials — Concrete with bag count. Drywall with waste factor. Board feet with cost calculation. Baluster spacing with code compliance.

• Made for the way you work — Glove-friendly tap targets. Calculation history that survives across launches. Imperial and metric. iPhone-first.

NO SUBSCRIPTION

You buy BuildX once. You own it. No recurring charges. No "Pro" tier gating basic features. No counters on free uses. No upgrade pressure.

BUILT FOR

• Finish carpenters and framers
• Renovators and small contractors
• Serious DIY woodworkers
• Anyone tired of subscription fatigue