Home Pergola 20×20 Lean to Pavilion Roof Plans

20×20 Lean to Pavilion Roof Plans

by Ovidiu

 

This step by step diy woodworking project is about a 20×20 lean to pavilion roof plans. This is PART 2 of the pavilion project, where I show you how to build the lean to roof structure and how to attach the decorative trims. Check out the codes before building the pavilion, to make sure it complies with the local regulations. Take a look over the rest of my woodworking plans, if you want to get more building inspiration. Premium Plans for this project available in the SHOP.

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.

 

 

Projects made from these plans

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20×20 Lean to Pavilion Roof Plans

Building-a-20x20-lean-to-pavilion

Building-a-20×20-lean-to-pavilion

 

Cut & Shopping Lists

  • G – 18 pieces of 2×8 lumber – 135 3/4″ long RAFTERS
  • H – 18 pieces of 2×8 lumber – 135 3/4″ long RAFTERS
  • I – 10 pieces of 1/2″ plywood – 48″x96″ long, 5 pieces – 48″x80″ long, 2 pieces – 31 1/2″x96″ long, 1 piece – 31 1/2″x80″ long ROOF SHEETS
  • J – 2 pieces of 1×10 lumber – 12 ft, 2 pieces – 128 3/4″ long, 2 pieces – 127 1/2″ long, 2 pieces – 144 3/4″ long TRIMS
  • K – 600 sq ft of tar paper, 600 sq ft of asphalt shingles ROOFING

Tools

 Hammer, Tape measure, Framing square, Level

 Miter saw, Drill machinery, Screwdriver, Sander

 Safety Gloves, Safety Glasses

Time

 One day

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How to build a 20×20 picnic shelter roof

Rafters---part-1

Rafters—part-1

Use 2×8 lumber for the rafters. Use a circular saw to make the cuts to the boards. Smooth the edges with sandpaper. Make the notches to the rafters, as shown in the plans. Mark the lines before doing the cuts.

Rafters---lean-to-pavilion

Rafters—lean-to-pavilion

Use 2×8 lumber for the rafters. Use a circular saw to make the cuts to the boards. Smooth the edges with sandpaper. Make the notches to the rafters, as shown in the plans. Mark the lines before doing the cuts.

Fitting-the-rafters

Fitting-the-rafters

Fit the rafters to the top of the pavilion, using the information from the diagram. It is important to space the rafters properly (every 16″ on center), otherwise you won’t be able to attach the roofing sheets. Use rafters ties to lock the rafters to the beams, at both ends. Use 1 1/2″ structural screws for the rafter ties.

Fitting-the-roof-sheets

Fitting-the-roof-sheets

Use 1/2″ plywood for the roof of the pavilion. Cut the sheets at the right dimensions and then lay them to the top of the pavilion. Leave no gaps between the sheets and then insert 1 5/8″ screws, every 8″ along the rafters, so you can secure them into place tightly.

Front-roof-trims

Front-roof-trims

 

Side-roof-trims

Side-roof-trims

Fit 1×10 trims to the sides of the pavilion. Align the edges with attention and insert 2″ nails to lock them into place tightly. Fit the 1×10 trims to the front and back of the pavilion. Lock them into place with 2″ nails.

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.

Make-a-pavilion-lean-to-roof

Make-a-pavilion-lean-to-roof

Last but not least, you need to take care of the finishing touches. Therefore, fill the holes with wood putty and then smooth the surface with 120-220 grit sandpaper. Apply a few coats of paint / stain to enhance the look of the pavilion and to protect them from the elements.

How-to-build-a-lean-to-pavilion-20x20

How-to-build-a-lean-to-pavilion-20×20

This large pavilion has a square base and it has the ideal size for an outdoor hangout place. This pavilion is easy to make and it features a study design that has been optimized so you keep the costs down (therefore the frame has an extra post in the middle of the pavilion – to keep the lumber size cost efficient). You can build this pavilion next to the property line because of the slanted shaped roof.

Top Tip: Apply a few coats of paint or stain to the components, to enhance the look of the project. Make sure you take a look over the rest of my pergola/gazebo/pavilion plans HERE. See all my free woodworking plans (over 1000) HERE. Premium Plans for this project available in the SHOP.

 


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This woodworking project was about 20×20 outdoor pavilion plans free. 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. Feel free to SHARE my plans with your friends.

 

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