DIY 8×8 Barn Shed | Free Building Plans

DIY 8×8 Barn Shed | Overview

Material List

Shopping List

A shopping list is included. Since lumber can be purchased in different sizes the shopping list will vary. Study the cut list to see what will work best for you.

(material for door not included)

Floor

• 9 – 2×6 (pressure-treated) – 8′
• 2 – 4×4 (pressure-treated) – 8′
• 2 – 3/4″ tongue and groove plywood – 4′ x 8′ sheet

Walls

• 48 – 2×4 – 8′

Truss/Rafters

• 14 – 2×4 – 8′
• 1 – 1/2″ plywood – 4’x8′ sheet

Siding

• 6 – 2×4 – 8′
• 10 – t1-11 exterior siding – 4’x8′ sheet

Roof

• 10 – 2×4 – 8′
• 1 – t1-11 exterior siding – 4’x8′ sheet
• 6 – 1/2″ plywood – 4’x8′ sheet

Trim

• 4 – 1×4 – 8′
• 4 – 1×4 -10′

Hardware

• 3 1/2″ galvanized nails
• 2″ galvanized nails
• 1 1/2″ galvanized nails
• 1 1/2″ galvanized finishing nails
• 3″ galvanized finishing nails
• 2″ deck screws
• shingles
• roofing felt
• roofing tacks
• roof staples
• drip edge

Cutting List

(material for door/window not included)

Floor

• 2 – 2×6 (pressure-treated) – 8′
• 7 – 2×6 (pressure treated) – 7′ 9″
• 2 – 4×4 (pressure-treated) – 8′
• 2 – 3/4″ tongue and groove plywood – 4′ x 8′ sheet

Walls

• 6 – 2×4 – 8′
• 36 – 2×4 – 7′ 6″
• 6 – 2×4 – 7′ 5″

Truss/Rafters

• 28 – 2×4 – 3′ 3 5/8″ (22.5-degree angle cuts on both ends in opposite directions)
• 1 – 1/2″ plywood (gussets) – 4’x8′ sheet (cut to size)

Siding

• 6 – 2×4 – 8′ (cut to size)
• 10 – t1-11 exterior siding – 4’x8′ sheet (cut to size)

Roof

• 16 – 2×4 – 21 3/4″
• 8 – 2×4 – 3′ 3 5/8″ (22.5-degree angle cuts on both ends in opposite directions)
• 2 – 2×4 – 8′ (cut to size)
• 1 – t1-11 exterior siding – 4’x8′ sheet (cut to size)
• 6 – 1/2″ plywood – 4’x8′ sheet (cut to size)

Trim

• 4 – 1×4 – 8′ (cut to size)
• 4 – 1×4 -10′ (cut to size)

• 2 – 3/4″ tongue and groove plywood – 4′ x 8′ sheet

Screw 2″ deck screws through the floor deck and into the floor frame.

Here is a close up look of the right/left wall frame ends.

Front/Back Walls

• 4 – 2×4 – 7′ 5″
• 14 – 2×4 – 7′ 6″
• 2 – 2×4 – 8′

Frame the right and left wall frame as shown on drawing above. Use 3 1/2″ nails to assemble.

Raise and secure wall frames using 3 1/2″ nails.

Truss/Rafters

• 28 – 2×4 – 3′ 3 5/8″ (22.5-degree angle cuts on both ends in opposite directions)

Cut the bird mouth, as shown on image above, to fourteen of the rafters.

Make gussets out of 1/2″ plywood.

Assemble the roof truss as shown on drawing above using 1 1/2″ nails.

Install roof truss 16″ O.C. using 3 1/2″ nails.

Siding

• 6 – 2×4 – 8′ (cut to size)

Measure and cut 2×4’s to size and install to the front and back top wall frame, notch the top end of the 2×4’s around roof truss.

• 8 – t1-11 exterior siding – 4’x8′ sheet (cut to size)

Measure and cut siding to size and install using 1 1/2″ finishing nails.

• 2 – t1-11 exterior siding – 4’x8′ sheet (cut to size)

Install top siding using 1 1/2″ finishing nails, cut siding along roof truss.

Roof

The front and back of the shed will have about an 8″ roof overhang. To make the overhang bigger or smaller adjust the length of the outriggers.

• 16 – 2×4 – 21 3/4″

Notch truss and siding as shown on drawing above. Install outriggers using 3 1/2″ nails.

• 8 – 2×4 – 3′ 3 5/8″ (22.5-degree angle cuts on both ends in opposite directions)

Install the 2×4 roof trim using 3″ finishing nails.

• 2 – 2×4 – 8′ (cut to size)

Cut 2×4’s to size and install between the roof truss using 3 1/2″ nails.

• 1 – t1-11 exterior siding – 4’x8′ sheet (cut to size)

Cut t1-11 exterior siding to size and install between roof truss using 1 1/2″ finishing nails.

• 6 – 1/2″ plywood – 4’x8′ sheet (cut to size)

Measure, cut, and install 1/2″ plywood for the roof deck using 1 1/2″ nails.

Install roofing felt, drip edge, and shingles.

Trim

• 4 – 1×4 – 8′ (cut to size)
• 4 – 1×4 -10′ (cut to size)

Cut to size 1×4’s for the corner trim, install using 1 1/2″ finishing nails.

Door

See door framing and installation.

PDF DOWNLOAD