How to Build a Shed: A Step-by-Step Guide for First-Timers

Updated October 31, 2026

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Before you start

• Check permits and setbacks. Many towns don't require a building permit for small sheds, but almost all have rules on how close a shed can be to property lines. See our shed permit guide.
• Pick the spot. The Home Depot suggests ground within about 6 inches of level, away from low spots where water collects and out from under trees.
• Call 811 before you dig, so buried utility lines can be marked.
• Choose a size. 8x10 and 10x12 are the most common first builds. Bigger sheds cost more and are more likely to need a permit.
• Get plans. A plan with a cut list and materials list prevents most expensive mistakes. See how to choose shed plans.

Step 1: Build the foundation

Most backyard sheds sit on a gravel pad, concrete deck blocks, timber skids or a concrete slab. Gravel and blocks are cheap and DIY-friendly; a slab is the most durable and best for heavy equipment. Whatever you choose, keep the wood off the ground and use pressure-treated lumber for anything near it. Our shed foundation guide compares every option.

Step 2: Frame the floor

1. Build a rectangle from pressure-treated 2x6 or 2x8 boards and check it's square by measuring both diagonals. They should match.
2. Add joists every 16 inches on center, fastened with joist hangers.
3. Level the frame on the foundation, then lay plywood or tongue-and-groove floor sheathing with staggered seams.
4. Planning to park a riding mower inside? Add extra support under the joists where it will sit.

Step 3: Frame and raise the walls

1. Build each wall flat on the floor with 2x4 studs 16 inches on center, with headers over door and window openings.
2. Square each wall. Many builders add the siding (T1-11 or plywood) while the wall is still on the floor.
3. Raise each wall, check it's plumb with a level, brace it, then nail the corners together and add a top plate that overlaps the joints.

Step 4: Build the roof

Gable roofs use rafters or simple trusses with plywood gussets; lean-to roofs use single-slope rafters, which are easier. Space them 16 or 24 inches apart as your plans specify, then sheathe with plywood or OSB, staggering the seams.

Step 5: Roof, siding and trim

1. Install drip edge and roofing underlayment (felt), then shingles from the bottom up, finishing with ridge caps. Follow the shingle maker's nailing instructions.
2. Finish any siding not done on the ground, then add corner and fascia trim.
3. Paint or stain all exposed wood.

Step 6: Door, ramp and finishing

Hang a prehung exterior door or build a simple barn-style door from your plans, add a ramp if you'll roll equipment in, and seal gaps. Hire a licensed electrician for any wiring.

Tools you'll need

Shop shed-building tools

Common questions

How long does it take to build a shed?

A first-time builder can usually frame and roof a simple 8x10 or 10x12 shed over two to four weekends, with help for raising walls and the roof. Painting, trim and a ramp add more time.

Is it cheaper to build or buy a shed?

Building from plans is usually cheaper than paying a builder, which typically runs $45 to $100 per square foot for a custom shed. A prefab kit takes less skill, and Lawn Love puts typical store prefab kits at $1,500 to $4,000. Use our shed cost calculator to compare for your size.

Do I need a permit to build a shed?

Often not for a small shed. The International Residential Code exempts one-story accessory buildings up to 200 square feet, but many towns set a lower limit and zoning setbacks still apply. Always check with your local building department. See our permit guide.

What's the easiest shed to build?

A lean-to (single-slope) shed on a skid or deck-block foundation is the simplest: no trusses, few angled cuts and a small footprint.

More shed guides