Sheathing Calculator
Calculate the number of OSB or plywood sheets needed for roof or wall sheathing.
Utilisez des decimales si necessaire. Cette estimation se met a jour en direct et peut etre ajustee en toute securite avant l'achat.
Sheathing Buying Guide
This guide helps you turn your sheathing calculator result into a cleaner purchase plan. Use it when you want fewer return trips, better waste assumptions, and a more realistic cart.
Step 1: Pick OSB for walls, Plywood for roofs
Oriented Strand Board (OSB) is cheaper and perfect for exterior walls. Plywood holds nails better and is less prone to edge-swelling if it gets wet, making it better for roofs.
Step 2: Get the thickness right
For wall sheathing, 7/16-inch OSB is standard. For roof sheathing (especially with 24-inch rafter spacing), you generally need stronger 5/8-inch panels.
Step 3: Don't subtract for doors or windows
Install the 4x8 sheets continuously over the framing, covering the door and window openings entirely. Then use a router to cut the openings out cleanly.
Souvent utile pour ce projet
Outils et accessoires souvent associes
Ce sont les petits extras pratiques souvent oublies jusqu'au dernier moment, surtout quand une estimation devient une vraie liste d'achat.
Divulgation : ces liens peuvent etre des liens d'affiliation.
Sheathing cost planning rule of thumb
Your budget must include the sheathing panels, boxes of framing nails, and cases of subfloor construction adhesive if you are doing floors.
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FAQ Sheathing Calculator
Faut-il arrondir avant d acheter ?
Oui. Une petite marge couvre les coupes, la perte et les ajustements de derniere minute.
La disposition influence-t-elle la perte ?
Oui. Les plans simples demandent moins de marge, tandis que les angles, motifs et obstacles en demandent davantage.