Free Interactive Tools

Interactive Planning & Engineering Calculators

Calculate before you buy, frame, or install. Use our professional-grade sizing, hardware matching, and electrical calculators to make confident, code-compliant decisions for your home and doors.

Live Calculator

Door Size Calculator

Determine exact rough opening dimensions, pre-hung frame clearances, slab sizes, and jamb depths for interior, exterior, pocket, and barn doors.

2-Way Calculator: Slab to Rough Opening & R.O. to Slab
2×4 vs 2×6 framing jamb depth recommendations
Master sizing charts for 24″ to 36″ doors

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Live Matcher

Lock Security Matcher

Match your door location, material, and vulnerability factors to the optimal ANSI/BHMA graded deadbolt, strike plate reinforcement, and keyway system.

ANSI Grade 1, 2, and 3 security rating evaluator
Kick-in defense & 3-inch screw installation rules
Smart lock vs mechanical deadbolt comparison

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Live Calculator

Garage Wire Size Guide

Calculate the exact AWG wire gauge, breaker amperage, and conduit specifications for garage door openers, 240V heaters, and Level 2 EV charging stations.

NEC Article 210 & 625 continuous load compliance
Single-phase voltage drop computation across long distances
GFCI mandate breakdown for all 120V & 240V outlets

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Why Accurate Planning Matters in Door Construction

Improperly measured rough openings and undersized electrical circuits are two of the most costly mistakes in residential construction. A door rough opening that is framed even 1/2-inch out of square will cause door slabs to bind, hinge screws to pull loose, and latch bolts to miss strike plates. Similarly, running undersized 14 AWG wiring on high-draw garage circuits leads to nuisance breaker trips and premature motor capacitor failure. Every tool on Dooroora is engineered against modern building codes (IRC, IBC, NEC NFPA 70) and industry manufacturing standards (ANSI/BHMA).