learn.howToCalculate
learn.whatIsHeading
Rafter Length Calculator helps contractors and tradespeople accurately size, spec, and estimate materials and systems.
Formule
Rafter Length = √(Rise² + Run²) + Overhang
Guide étape par étape
- 1Use Pythagorean theorem with rise and run, add overhang
- 2Apply the formula using your project measurements
- 3Add required safety factors or waste allowances per code
Exemples résolus
Entrée
8 ft rise, 16 ft run, 1.5 ft overhang
Résultat
Rafter = √(64+256) + 1.5 = 17.9 + 1.5 = 19.4 ft
Erreurs courantes à éviter
- ✕Not applying code-required safety factors or derating
- ✕Forgetting to account for waste and cut losses in material estimates
Prêt à calculer ? Essayez la calculatrice gratuite Rafter Length
Essayez-le vous-même →