4 x 8 Storage Shed Plan

Introduction

You won’t lack for headroom when you build the 4x8 foot storage shed. The sloped roof peaks just over nine feet, perfect for the very tall. It slopes to more than eight feet at its lowest. The front has a generous window measuring 26 inches square and a front door that’s 32 inches wide.

With eight feet in length and four feet in width, you’ll be able to store your yard tools and some equipment like the lawn mower, rototiller, leaf blower, lawn trimmer and all the shovels, hoes and rakes you own. The vents in the side walls will keep the odors from building in the event you want to store soil amendments or patio furniture during the winter.

Materials you’ll need

  • Concrete
  • Bricks
  • Pressure-Treated Lumber
  • Pressure-Treated Board
  • Plywood
  • Building paper
  • Asphalt shingles
  • Wood siding boards
  • Door hinges
  • Door Pulls
  • Surface Bolts
  • Galvanized nails
  • Wood screws

Step 1 – Foundation Preparation

1.1 Clear the area where you want to build the shed and layout for the foundation. Use the below illustration as a guide.

1.2 For the foundation, dig the trenches at least 1 foot wide and 1 foot deep.

1.3 Fill the trenches to ground level with concrete and let cure, or harden. Since curing times vary between brands, read the packaging for recommended curing times.

1.4 Once the concrete has cured, use standard-sized bricks and lay them across the foundation. You will need roughly 65 bricks for this step.
4x8 lean to storage shed foundation preparation

Step 2 – Framing The Floor

2.1 Assemble the frame using 1 1/2” x 7 1/4” pressure-treated lumber. You will need two boards cut to 8’ that will be the rim joist and two boards cut to 3′-9″ that will be the joist.

2.2 Secure the beams with 8×5″ wood screws.

2.3 Using a speed square or carpenter’s square, check the corners to make sure they are 90°.
4x8 lean to storage shed floor framing

Step 3 – Assemble Front Wall Frame

3.1 Using 1 1/2“ x 3 1/2“ and 3 1/2“ x 3 1/2“ pressure-treated lumber, construct front wall frame using the drawing below as a reference. You will need six boards cut to 7′-3″ and one board cut to 3′-11″ that will be the studs, one board cut to 4′-4″ and one board cut to 1′ that will be the bottom plates, one board cut to 8′ that will be the top plate, one board cut to 2′-8″ that will be the door header, two boards cut to 2′-2″ that will be the window header and rough sill, two boards cut to 7″ and one board cut to 11′ that will be cripple studs.

3.2 Connect the beams with 2×3″ and 2×5″wood screws.

3.3 Using a speed square or carpenter’s square, check the corners to make sure they are 90°.
4x8 lean to storage shed front wall framing

Step 4 – Assemble Back Wall Frame

4.1 Using 1 1/2“ x 3 1/2“ and 3 1/2“ x 3 1/2“ pressure-treated lumber, construct back wall frame using the drawing below as a reference. You will need seven boards cut to 8′-3″ that will be the studs and two boards cut to 8′ that will be the top and bottom plates.

4.2 Connect the beams with 2×3″ wood screws.

4.3 Using a speed square or carpenter’s square, check the corners to make sure they are 90°.
4x8 lean to storage shed back wall framing

Step 5 – Assemble Side Wall Frames

5.1 Using 1 1/2“ x 3 1/2“ pressure-treated lumber, construct side wall frame using the drawing below as a reference. You will need four boards cut to 7′-3″ that will be the studs and two boards cut to 3′-5″ that will be the top and bottom plates.

5.2 Connect the beams with 2×3″ wood screws.

5.3 Using a speed square or carpenter’s square, check the corners to make sure they are 90°.
4x8 lean to storage shed side walls framing

Step 6 – Assemble The Roof Frame

6.1 Using 1 1/2 “ x 5 1/2 “ pressure-treated lumber, cut seven rafters 5′-6 1/4″ long according to the dimensions in drawing below. Cut the recesses in each beam for splicing connection with wall frames.

6.2 Connect the beams with a top frame with the help of 3″ wood screws.
4x8 lean to storage shed roof framing

Step 7 – Window Installation for the Front Wall

7.1 Using 1 1/2 “ x 2 1/2 “ pressure-treated lumber, assemble the frame for the window as shown in the drawing below. You will need two boards cut to 1′-11″ that will be the vertical girts and two boards cut to 2′-2″ that will be the horizontal girts. Connect them with 2×3″ wood screws. Mill a recess for the glass.

7.2 Prepare and install 1/8″ glass into inner frame groove and fasten it by window beading from four sides. You will need one sheet 1′-11 1/2″ x 1′-11 1/2″ of the glass. Use 1/2″ galvanized nails.

7.3 Insert window into the front wall opening and connect them with 8×3″ wood screws to the wall beams.
4x8 lean to storage shed window

Step 8 – Assemble and Install Shed’s Door

8.1 Build the door frame for the coop using 1 1/2 “ x 3 1/2 “ pressure-treated lumber and secure with 5” wood screws. You will need two boards cut to 6′-7 1/2″ that will be the vertical girts, three boards cut to 2′-1/2″ that will be the horizontal girts and two boards cut to 3′-6 1/4″ that will be cross braces.

8.2 Use 3/4“ x 2 1/2 “ pressure-treated lumber for the door trims and fasten with 2” wood screws. You will need two boards cut to 6′-2 1/2″ and two boards cut to 2′-7 1/2″.

8.3 Using 1/4 “ x 3/4 “ pressure-treated lumber, cut and install a starter course 2′-2 1/2″ long.

8.4 For the exterior siding on the door, use 1/2 “ x 6” wood siding boards and the illustration below as a reference.

8.5 Assemble siding shields with 2″ galvanized nails.

8.6 Install three 3″ door hinges using 6×1″ wood screws. Finish the installation of the door by attaching 4″ surface bolt and 6″ door pull.
4x8 lean to storage shed door

Step 9 – Roof Sheathing Installation

9.1 You will need 55 Sq Ft of asphalt shingle roofing.

9.2 Add the metal drip edge to the fascias.

9.3 Cover the plywood with building paper.

9.4 Install asphalt shingle roofing using an industrial stapler.
4x8 lean to storage shed roof sheathing installation

Step 10 – Decorate the Shed

Now that you’ve finished the shed, you are ready to paint it or finish with a wood stain or preservative.
4x8 lean to storage shed

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4x8 lean to storage shed plan