6×12 Gambrel Shed Roof Plans

This step by step diy project is about 6×12 gambrel shed roof plans. This is PART 2 of the storage barn shed project, where I show you everything you want to know about framing the barn shaped roof. Take a look over the rest of my woodworking plans, if you want to get more building inspiration. Remember that you need to select the site for the shed with attention and that you have to comply with a few legal regulations.

When buying the lumber, you should select the planks with great care, making sure they are straight and without any visible flaws (cracks, knots, twists, decay). Investing in cedar or other weather resistant lumber is a good idea, as it will pay off on the long run. Use a spirit level to plumb and align the components, before inserting the galvanized screws, otherwise the project won’t have a symmetrical look. If you have all the materials and tools required for the project, you could get the job done in about a day. See all my Premium Plans HERE.

Projects made from these plans

6×12 Gambrel Shed Roof Plans

Building-a-6×12-gambrel-shed

Cut & Shopping Lists

• G – 2 pieces of T1-11 siding – 48″x100″ long, 2 pieces – 24″x95″ long SIDING
• H – 4 pieces of 2×4 lumber – 30″ long 10xTRUSSES
• H – 2 pieces of 2×4 lumber – 28 3/4″ long SUPPORTS
• I – 4 pieces of 2×4 lumber – 30″ long, 4 pieces of 1×6 lumber – 30″ long 2xOVERHNAG
• J – 4 pieces of 3/4″ plywood – 30″x96″ long, 4 pieces – 30″x48″ long ROOF
• K – 150 sq ft of tar paper, 150 sq ft of asphalt shingles ROOFING

• 12 pieces of 2×4 lumber – 10′
• 2 pieces of T1-11 siding – 4’x10′
• 1 piece of T1-11 siding – 4’x8′
• 6 pieces of 3/4″ plywood – 4’x8′
• 3 pieces of 1×6 lumber – 8′
• 150 sq ft of tar paper, 150 sq ft of asphalt shingles
• rafter ties
• 2 1/2″ screws, 3 1/2″ screws, 1 5/8″ screws
• 4d nails, 16d nails, 6d nails
• wood filler , wood glue, stain/paint

Tools

 Hammer, Tape measure, Framing square, Level

 Miter saw, Drill machinery, Screwdriver, Sander

 Safety Gloves, Safety Glasses

Time

 One week

Related

• PART 1: 6×12 Barn Shed Plans 
• PART 2: 6×12 Barn Shed Roof Plans
• PART 3: 6×12 Barn Shed Door Plans

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How to build a 6×12 barn shed roof

Rafters-for-6×12-gambrel-shed

The first step of the project is to build the rafters from 2×4 lumber. Use a miter saw to make 22.5 degree cuts at both ends of the rafters.

Birdsmouth-cuts-for-6×12-shed

Use a saw to make the birdmouths cuts to the base rafters.

Fitting the gussets

Use 3/4″ plywood for the gussets. Mark the cut lines on the plywood sheet and get the job done with a saw. Fit the gussets over the joints and then lock them to the joints with 1 5/8″ screws.

Fitting-the-trusses-to-the-top-of-the-6×12-gambrel-shed

Fit the trusses to the top of the barn shed. Fit the trusses every 16″ on center and then plumb them vertically with a spirit level. Use rafter ties to secure the trusses into place tightly.

Back wall supports – barn shed

Use 2×4 lumber for the supports. Fit the supports to the back of the shed and use 2 1/2″ screws to lock them into place tightly.

Front wall panels – 6×12 shed

Use T1-11 siding sheets for the front panels. Use a circular saw to make the cuts around the door opening. Fit the sheets to the and align the edges flush. Insert 6-8d nails every 8″ along the framing.

Back wall panels – 6×12 shed

Cut the sheets for the back wall and attach them into place with 6-8d nails.

Fitting-the-roofing-sheets-to-the-gambrel-shed

Use 3/4″ plywood for the roof. Fit the sheets to the roof of the shed and align the edges with attention. Insert 1 5/8″ screws every 8″ along the framing.

Overhangs – barn shed

Fit the overhangs to the front and back of the barn shed. Align the edges with attention, drill pilot holes and insert 3 1/2″ screws to lock the overhangs to the shed frame.

Fitting the overhangs

Use 1×6 slats for the shed overhangs. Fit the slats to the roof of the shed and align the edges flush. Drill pilot holes and insert 1 5/8″ screws to secure the slats to the supports.

Fitting the roofing

Cover the roof of the shed with roofing felt, making sure the strips overlap at least 2″. Secure the tar paper to the plywood sheets with roofing staples. In addition, cut a large piece for the top ridge. Fit the side drip edges over the roofing felt, while the bottom drip edges should be fit under.

Read the instructions labeled on the asphalt shingle packs before installing them into place tightly. Start with the bottom left side of the roof and install them all the way to the top.

6×12 Gambrel Shed Plans – side view

6×12 Gambrel Shed Plans – back view

How-to-build-a-6×12-gambrel-shed

Apply a few coats of paint over the exterior siding and trims to protect the components from the elements and to make the shed eye catching.  Make sure you check out PART 1 and PART 3 of the project, so you see how to build the frame and the door for the gambrel shed.

This woodworking project was about 6×12 barn shed roof plans. If you want to see more outdoor plans, check out the rest of our step by step projects and follow the instructions to obtain a professional result.

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