12×20 Gable Shed Roof – DIY Plans

 

This step by step woodworking project is about free 12×20 gable shed roof plans. This is PART 2 of the large shed project, where I show you how to build the gable shaped roof. The pitch is 4 6:12. Check out the rest of the projects for detailed instructions on how to make the frame for the shed. Read the local codes and make sure you comply with the regulations. See my other DIY projects HERE ^[1].

We recommend you to invest in the best materials you could afford. Therefore, you should buy weather-resistant lumber, such as pine or cedar. Always take accurate measurements before adjusting the size of the components at the proper size. Drill pilot holes trough the components before inserting the wood screws, to prevent the wood from splitting.

 

 

Made from this plan

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12×20 Gable Shed Roof – PDF Download

 

Cut and Shopping Lists

• UNLOCK CUT AND SHOPPING LISTS ^[3]

Tools

• Safety gloves, glasses
• Miter saw, jigsaw
• Chalk line, tape measure, spirit level, carpentry pencil
• Drill machinery and drill bits

Time

• One Day

 

 

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Building a gable roof for a 12×20 shed

The first step of PART 2 if to build the trusses. I personally recommend you to go with engineered trusses, because they came at the construction site already assembled and they are designed for your local weather conditions. In this manner, the engineered trusses will provide the best cost to benefit ratio. This shed roof has a 6:12 pitch.

However, I will show you an idea on how I would build the trusses for myself. Use 2×4 lumber for the rafters and 2×6 for the bottom chord. Use a miter saw to make the cuts to the rafters, as shown in the diagram.

Use 2×4 lumber for the middle supports. Make angle cuts to the top of the supports, as shown in the diagram.

Use 1/2″ plywood for the gussets. Lay the gussets over the joints and align the edges flush. Drill pilot holes and insert 1 5/8″ screws. You could add construction glue to the joints. In addition, the best would be to add gussets on both sides of the trusses.

Fit the trusses to the top of the storage shed. Place the trusses every 16″ on center and use a spirit level to plumb them. Use rafter ties to secure the rafters into place tightly. Insert 1 1/2″ structural screws to lock the ties to the top plates and to the rafters.

Use T1-11 siding sheets cover the front and the back of the storage shed. Align the edges flush and leave no gaps between the sheets. Insert 6d nails to secure the sheets into place tightly. Make cuts around the front double door opening.

Continue the project by assembling the roof overhangs. Drill pilot holes through the rafters and insert 3 1/2″ screws into the supports.

Fit the overhangs to the front and to the back of the shed. Align the edges flush, drill pilot holes and insert 1 5/8″ screws to lock them tightly along the rafters. Leave no gaps between the roof sheets.

The next step of the project is to attach the 1/2″ plywood sheets to the top of the roof. Align the edges flush and then lock them to the rafters, every 8″, using 1 5/8″ screws. Make sure you leave no gaps between the sheets for a nest result. You can use other patterns for laying the sheets, as well.

Fit the 1×6 trims for the sides of the roof. Align the edges flush and leave no gaps between them. Insert 2″ nails to lock the trims to the ends of the rafters.

Fit the 1×6 trims to the front and back of the roof. Use 2″ nails to lock the trims into place tightly.

The next step of the woodworking project is to cover the roof with felt. As you can see in the image, you need to make sure the strips of roofing felt overlap at least 2”. In addition, you have to lock the tar paper to the plywood sheets with staples. Next, you should install the shingles to the roof of the large shed. Start with the bottom of the roof, by fitting the first course, as in the image. Use roofing tacks to secure the shingles to the roofing sheets.

Start the first course with a full tab, the second with 2 1/2 tabs, the third with 2 tabs, the forth with 1 1/2 tabs, the fifth with 1 tab, the sixth with half tab and the seventh with a 3 tabs. Secure the shingles with roofing tacks.

Fit the 2×4 jambs around the side door of the shed. Align the edges flush, drill pilot holes and insert 3 1/2″ screws to lock them into place.

Build the door from from 2×4 lumber, using pocket holes and 2 1/2″ screws. Drill pocket holes at both ends of the vertical and middle components. Align the edges with attention and make sure the corners are square. Add glue to the joints and make sure the edges are aligned.

Attach the T1-11 siding panel to the door frame. Align the edges flush, add glue to the joints and insert 2″ nails through the panel.

Fit the door to the opening and secure it to the jambs with 3 hinges and 1 latch, to keep your belongings secure.

Fit the jambs around the double door opening.

Assemble the double door frames using 2x4s and 2 1/2″ screws, with pocket holes.

Attach the siding panels to the door frames.

Install the double doors to the large front opening. Align the edges flush and install hinges to secure the doors into place tightly.

Fit the windows to the side of the shed. Install trims with a decorative purpose. Use 2″ finish nails to secure the trims into place.

If you want to build the frame for this gable storage shed, you should check out PART 1 ^[8] of the project. If you like my project, don’t forget to SHARE it on Facebook and Pinterest. Since you are already here, you might as well take a look over my 16×20 pole barn plans ^[9]. A pole bars has numerous advantages over a shed framing, so that will be an useful read.

Smart Tip: Don’t forget to share your projects with me, as I love seeing what you guys are working on. Send me the pics HERE ^[2]. In addition, take a look over the rest of my DIY projects HERE ^[1].

 

 

Thank you for reading our project about free 12×20 gable shed roof shed plans and I recommend you to check out the rest of the projects. Don’t forget to LIKE and SHARE our projects with your friends, by using the social media widgets. SUBSCRIBE to be the first that gets our latest projects.

 

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