From-Scratch Calculator
Build Your Shed From Scratch — Material & Cost Calculator
Calculate exactly how much lumber and materials you need. Get a complete shopping list with quantities and estimated costs.
Size
Foundation
Walls
Roof
Siding
Roofing
Finishing
Electrical
Climate
Results
Step 1 of 10
Shed Size
Pick a common size or enter custom dimensions
How size affects material requirements
8×8 (64 sqft): Compact, roughly 100-150 2x4 studs total, ideal for storage.
10×12 (120 sqft): Mid-size, most common DIY build. ~180-220 lumber pieces.
16×20 (320 sqft): Large shed. Requires more beams, deeper excavation, significant materials.
×
feet
Step 2 of 10
Foundation
Beam, joists, blocks, and subfloor
Step 3 of 10
Wall Framing
Studs, plates, and 60" double-door opening
Step 4 of 10
Roof Type & Framing
Choose gable or shed roof style
Step 5 of 10
Siding Material
Wall covering options
Step 6 of 10
Roofing Material
Shingles, metal, or rolled roofing
Step 7 of 10
Exterior Finish
Stain or paint protection
Step 8 of 10
Electrical
Lighting and outlet options
Step 9 of 10
Insulation & Climate
XPS foam board insulation + interior covering
Step 10 of 10
Optional Extras & Accessories
Add-ons and finishing touches
Storage
Lighting
Security
Exterior
Complete the form to see results
Fill out all sections to generate your materials shopping list and cost estimate.