Shed Material Calculator
Walls = perimeter×height area ÷ 32; roof = 2×rectangle footprint with pitch factor 1.1 placeholder.
Step 1: Units
Step 2
Enter project measurements
Use decimals if needed (e.g. 3.5).
How to use this calculator
Shed footprint, wall height, and simple gable assumption.
What the math is doing
Walls = perimeter×height area ÷ 32; roof = 2×rectangle footprint with pitch factor 1.1 placeholder.
Frequently asked questions
Doors/windows?
Subtract openings manually from sheet count.
Floors?
Add second rectangle for floor deck.
Codes?
Accessory structure rules vary.
Snow load?
Design rafters to local data.