8 x 16 Garden Shed Plan

Introduction

When you need a light, airy and attractive all-purpose garden shed, look no further than the 8x 16 lean-to shed plan that has two generously sized windows and a double front door. The windows and doors are trimmed with shutters and lattice to make it an appealing element in your yard.
The double doors make it possible to put just about anything inside, from oversized yard equipment or for storing building materials like plywood or drywall sheets. Besides daylight, this lean-to has generous fresh air vents in the back wall, which prevents a buildup of hazardous gases from the items you store inside it. It’s also a plan that would adapt itself as a playhouse for kids or an escape for you by adding wiring and finishing the walls.

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 175 bricks for this step.
8x16 lean to garden 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 16′ that will be the rim joist and two boards cut to 7′-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°.
8x16 lean to garden 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 ten boards cut to 7′-3″ that will be studs, two boards cut to 5′-4″ that will be the bottom plates, one board cut to 16′ that will be the top plate, one board cut to 5′-4″ that will be the door header, three boards cut to 1′-1″ 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°.
8x16 lean to garden 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 thirteen boards cut to 8′-3″ that will be the studs and two boards cut to 16′ 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°.
8x16 lean to garden 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 frames using the drawing below as a reference. You will need two boards cut to 11″ that will be the cripple studs, two boards cut to 2′-9″ and six boards cut to 7′-3″ that will be the studs, two boards cut to 3′-4″ that will be the window header and rough sill and two boards cut to 7′-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°.
8x16 lean to garden shed side walls framing

Step 6 – Assemble The Roof Frame

6.1 Using 1 1/2″ x 5 1/2″ pressure-treated lumber, cut twelve rafters 9′-4 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.
8x16 lean to garden shed roof framing

Step 7 – Assemble and Install Shed’s Door

7.1 Build the door frames for the shed using 1 1/2″ x 3 1/2″ pressure-treated lumber and secure with 5″ wood screws. You will need two boards cut to 5′-11 3/4″ that will be the vertical girts and two boards cut to 2′-3/4″ that will be the horizontal girts.

7.2 Prepare the 9/16″ plywood sheet with dimensions 2′-7 3/4″ x 5′-11 3/4″ for the doors according to the drawing.

7.3 Use 2 1/2″ x 3/4″ pressure-treated lumber for the door trim and fasten with 2″ wood screws. You will need two boards cut to 2′-2 3/4″ and two boards cut to 5′-11 3/4″.

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

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

7.6 Assemble siding shields with 2″ galvanized nails.

7.7 Install six 3″ door hinges using 6×1″ wood screws. Finish the installation of the doors by attaching 4″ surface bolts and 6″ door pulls.
8x16 lean to garden shed door

Step 8 – Roof Sheathing Installation

8.1 You will need 175 Sq Ft of asphalt shingle roofing.

8.2 Add the metal drip edge to the fascias.

8.3 Cover the plywood with building paper.

8.4 Install asphalt shingle roofing using an industrial stapler.
8x16 lean to garden shed roof sheathing installation

Step 9 – Assemble and Install Door Ramp

9.1 Assemble the 5 door ramp frames from pressure-treated lumber and secure with 3″ and 5″ wood screws. For each frame you will need one 1 1/2″ x 1 1/2″ board cut to 1′-8″; one 1 1/2″ x 2 1/2″ board cut to 3′-3/4″ and one 1 1/2″ x 3 1/2″ board cut to 6 1/4″.

9.2 Connect and secure all frames using one 1 1/2″ x 2 1/2″ board 5′-9″ long and 3″ wood screws.

9.3 Cut the 9/16″ plywood sheet with dimensions 3′-3/4″ x 5′-9″ for the top plane and two sheets with dimensions 9 1/4″ x 2′-9 1/2″ for the sides.

9.4 Assemble siding shields with 2″ galvanized nails.
8x16 lean to garden shed door ramp framing

Step 10 – Window Installation for Side Walls

It is necessary to prepare 2 windows.

10.1 Using 1 1/2″ x 2 1/2″ pressure-treated lumber, assemble the outer frame for the window as shown in the drawing below. You will need two boards cut to 3′-1″ that will be the vertical girts and two boards cut to 3′-4″ that will be the horizontal girts. Additionally, add vertical 2′-11 1/2″ long and horizontal 3′-1″ long supports using 3/4″ x 1″ lumber and cut the recesses for the window hinges.

10.2 Use 1 1/2″ x 1 1/2″ pressure-treated material to make the inner frame and secure with 3″ wood screws. You will need two boards cut to 2′-9 3/4″ that will be the vertical girts and two boards cut to 3′-3/4″ that will be the horizontal girts. Mill a recess for the glass panes and for the hinges.

10.3 Use 1 1/4″ x 1 1/2″ pressure-treated material to make the inner frame supports and secure with 3″ wood screws. You will need two boards cut to 2′-9 3/4″ and mill a recess for interconnection.

10.4 Prepare and install glass into inner frame groove and fasten it by window beading from four sides. Use 1/2″ galvanized nails.

10.5 Install two hinges 3″ with 6×1″ wood screws and assemble the window. Install a lock on the inner side of the window.
8x16 lean to garden shed window

Step 11 – Assemble and Install Window Shutters

It is necessary to prepare 4 windows shutters.

11.1 Assemble frames using 3/4″ x 1 1/2″ pressure-treated lumber and secure with 3″ wood screws. You will need one board cut to 1′-4 3/4″ two boards cut to 3′-3/4″ that will be the vertical girts and two boards cut to 1′-7 3/4″ that will be the horizontal girts.

11.2 Mill a recess along the vertical girts for the jealousies.

11.3 Use 1/4″ x 1 1/2″ pressure-treated lumber for the jalousies. You will need twenty-two boards cut to 1′-5 3/4″.

11.4 Install two 3″ door hinges using 6×1″ wood screws.
8x16 lean to garden shed decorative window shutters framing

Step 12 – Install Decorative Door Shutters

It is necessary to prepare two decorative door shutters.

12.1 Assemble front frame using 1 1/2″ x 1 1/2″ pressure-treated lumber and secure with 3″ wood screws. You will need two boards cut to 6′-7″ that will be the vertical girts and two boards cut to 1′-5 1/2″ that will be the horizontal girts.

12.2 Assemble back frame using 3/4″ x 2 1/2″ pressure-treated lumber and secure with 5″ wood screws. You will need two boards cut to 6′-7″ that will be the vertical girts and two boards cut to 1′-3 1/2″ that will be the horizontal girts.

12.3 Use 3/4″ x 3/4″ pressure-treated lumber for the lattice. You will need thirty-six boards cut to 2′-3/4″. Assemble according to the drawing.
8x16 lean to garden shed decorative door shutters framing

Step 13 – Assemble Roof Drainage System

13.1 Assemble roof drainage system on the front fascia board. You will need 5″ half round gutter 14′-7″ long, two end pieces with the outlet, six 45° elbows, two 3″ pipes 6′ long, two joint connectors and two end caps.

13.2 Fasten the round gutter to the fascia with the round fits of hunger.

13.3 Fasten the vertical pipe section with the four wall fasteners.
8x16 lean to garden shed roof drainage system

Step 14 – Decorate the Shed

Now that you’ve finished the shed, you are ready to paint it or finish with a wood stain or preservative.
8x16 lean to garden shed

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8x16 lean to garden shed plan

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