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.

Custom size: × 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.

Size

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Total Materials

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Est. Lumber Pieces

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Build Your Shed From Scratch — Material & Cost Calculator

Complete the form to see results

Materials Shopping List

Cost Breakdown