4×12 Lean to Shed Roof Plans

This step by step diy project is about 4×12 lean to shed roof plans. This is PART 2 of the narrow garden shed project, where I show you how to build the lean to roof. The roof of the shed is easy to build and it has generous overhangs on all sides. Take a look over the rest of my woodworking plans, if you want to get more building inspiration.

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. See all my Premium Plans HERE.

Projects made from these plans

4×12 Lean to Shed Roof Plans

Building a 4×12 lean to shed

Cut & Shopping Lists

• H – 2 pieces of T1-11 siding – 48″x96″ long SIDING
• I – 7 pieces of 2×4 lumber – 62 1/4″ long RAFTERS
• J – 2 pieces of 2×4 lumber – 62 1/4″ long, 6 pieces – 4 1/2″ long 2xOVERHANG
• K – 2 pieces of 3/4″ plywood – 8″x62 1/4″ long, 1 piece – 48″x96″ long, 1 piece – 48″x48″ long, 1 piece – 14 1/4″x48″ long, 1 piece – 14 1/4″x96″ long ROOF SHEETS
• L – 2 pieces of 1×6 lumber – 160″ long, 2 pieces – 63 3/4″ long TRIMS
• M – 90 sq ft of tar paper, 90 sq ft of asphalt shingles ROOFING

• 2 pieces of T1-11 siding – 4’x8′
• 11 pieces of 2×4 lumber – 8′
• 90 sq ft of tar paper, 90 sq ft of asphalt shingles
• 2 pieces of 3/4″ plywood – 4’x8′
• 2 pieces of 1×6 lumber – 8′
• 2 pieces of 1×6 lumber – 14′
• tar paper
• rafter ties
• 6d nails, 2 1/2″ screws, 3 1/2″ screws
• 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: 4×12 Shed Plans
• PART 2: 4×12 Lean to Shed Roof Plans
• PART 3: 4×12 Lean to Shed Door Plans

Building a 4×12 lean to shed roof

rafters-for-4×12-lean-to-shed

The first step of the project is to build the rafters for the lean to shed. Use 2×4 lumber for the rafters. Mark the cut lines on the boards and then get the job done with a circular saw.

Fitting-the-4×12-lean-to-shed

Fit the rafters to the top of the shed, every 16″ on center. Use rafter ties to lock the rafters into place tightly. Use a spirit level to make sure the rafters are plumb.

Overhangs – 4×12 shed

Use 2×6 lumber for the side overhangs. Cut the components from 2×6 lumber at the dimensions shown in the diagram. Drill pilot holes through the long components and insert 3 1/2″ screws into the blockings.

Front wall – 4×12 lean to shed

Back wall siding sheet – 4×12 lean to shed

Mark the cut lines on the T1-11 siding sheets for the Fit the T1-11 siding sheets to the sides of the shed. Mark the cut lines on the sheets and then get the job done with a circular saw. Align the edges and insert 6-8d nails, every 8″ along the framing.

Fitting the overhangs – 4×12 diy shed

Fit the overhangs to the sides of the roof. Align the edges with attention, drill pilot holes and insert 3 1/2″ screws to lock them into place tightly.

Roof sheets – 4×12 lean to shed

Use 3/4″ plywood for the roofing sheets. Cut the sheets at the right dimensions and then lay them to the rafters. Align the edges with attention and insert 1 5/8″ screws, every 8″ along the framing. Leave no gaps between the sheets for a professional result.

Front and back roof trims

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

Roof trims – 4×12 lean to shed

Fit the 1×6 trims to the sides of the shed. Align the edges flush and insert 2 1/2″ nails to lock them into place tightly.

Fitting the roofing

Cover the roof with tar paper and then install the asphalt shingles. Make sure you also install the appropriate drip edges, so you can seal the shed roof. Read the manufacturer’s instructions for a tight fit.

4×12-lean-to-shed-plans

I have lots of other shed projects on the site so I recommend you to browse through all alternatives before starting the building project. See all my shed projects HERE. Moreover, check out PART 1 of the shed, so you learn how to build the frame of the shed. Check out PART 3 of the shed, so you learn how to build the double doors.

This woodworking project was about 4×12 lean to 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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