10×20 Lean To Shed Roof Plans

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This step by step diy project is about 10×20 lean to roof plans. This is PART 2 of the free 10×20 lean shed plans, where I show you how to build the lean to roof and how to attach the siding sheets. Make sure you check the local codes and make adjustments to the plans, if required. 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.

 

 

Projects made from these plans

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10×20 Lean To Shed Roof Plans

Building a 10x20 shed

Building a 10×20 shed

 

  • F – 2 pieces of 2×4 lumber – 240″ long, 18 pieces – 17″ long WALL FRAME
  • G – 5 pieces of T1-11 siding – 48″x114″ long, 2 pieces – 22″x48″ long, 2 pieces – 13 3/4″x48″ long, 2 pieces – 24″x26 1/4″ long SIDING
  • H – 16 pieces of 2×6 lumber – 144″ long RAFTERS
  • H – 2 pieces of 2×6 lumber – 144″ long, 7 pieces – 6 1/4″ long 2xOVERHANG
  • G – 2 pieces of 3/4″ plywood – 10″x96″ long, 2 pieces – 10″x48″ long, 6 pieces – 48″x96″ long, 3 pieces – 48″x48″ long ROOF
  • – 300 sq ft of tar paper, 300 sq ft of asphalt shingles ROOFING
  • I – 2 pieces of 1×8 lumber – 261 1/2″ long, 2 pieces – 261 1/2″ long TRIMS

  • 2 pieces of 5/8″ T1-11 – 4’x8′
  • 5 pieces of 5/8″ T1-11 siding – 4’x10′
  • 2 pieces of 2×4 lumber – 20′
  • 3 pieces of 2×4 lumber – 8′
  • 21 pieces of 2×6 lumber – 12′
  • 8 pieces of 3/4″ plywood – 4’x8′
  • 1 piece of 1×8 lumber – 20′
  • 2 pieces of 1×8 lumber – 12′
  • 100 sq ft of tar paper, 100 sq ft of asphalt shingles
  • tar paper
  • 6d nails, 2 1/2″ screws, 3 1/2″ screws
  • wood filler wood glue, stain/paint
  • rafter ties

 One week

 

 

Building a 10×20 lean to shed roof

Top back wall frame

Top back wall frame

The first step of the project is to build the top frame for the back wall of the shed. Cut the components from 2×4 lumber at the dimensions shown in the diagram. Drill pilot holes through the plates and insert 3 1/2″ screws into the studs. Place the studs every 16″ on center, for a professional result. Make sure the corners are square and align the edges with attention.

Fitting the top back wall frame

Fitting the top back wall frame

Fit the wall frame to the top of the back wall. Align the edges with attention and plumb it with a spirit level. Drill pilot holes through the bottom plates and insert 3 1/2′ screws into the wall.

Back wall siding

Back wall siding

Next, fit the T1-11 siding panels to back wall. Align the edges with the top edges of the wall frame and insert 2″ nails, every 8″ along the framing.

Building the rafters

Building the rafters

Use 2×6 lumber for the rafters. Mark the cut lines on the boards and then get the job done with a circular saw. Take accurate measurements and make sure the blade goes over the cut line, otherwise the rafters won’t fit into place.

Fitting the rafters

Fitting the rafters

Fit the rafters to the top of the shed, every 16″ on center. Use rafter ties to lock the rafters into place tightly.

Side lean to panels

Side lean to panels

Fit the T1-11 siding sheets to the sides of the shed. Align the edges and insert 6-8d nails, every 8″ along the framing.

Overhangs

Overhangs

Use 2×4 lumber for the side overhangs. Cut the components at the right dimensions and then lock them together tightly with 2 1/2″ screws. Make sure the edges are flush and check if the corners are square.

Fitting the side overhangs

Fitting the side overhangs

Fit the overhangs to the sides of the shed and align the edges with attention. Drill pilot holes and insert 3 1/2″ screws to lock them into place tightly. Doublecheck if the overhangs are locked into place tightly.

Fitting the roof sheets

Fitting the roof sheets

Cut the roof sheets from 3/4″ plywood, using the information from the diagram. Fit the 3/4″ plywood sheets to the roof of the shed. Align the edges with attention and insert 1 5/8″ screws, every 8″ along the framing.

Fitting the roof trims

Fitting the roof trims

Fit 1×8 trims to the sides of the roof. Fit 1×8 trims to the front and back of the shed roof. Align the edges with attention, drill pilot holes and insert 2 1/2″ screws/nails to lock them into place tightly.

Fitting the roofing

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.

10x20 Lean to Shed Plans

10×20 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 10×20 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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