This step by step diy woodworking project is about a 20×30 outdoor pavilion roof plans. This is PART 2 of the large rectangular pavilion project, where I show you how to build the roof and how to attach the decorative trims. The roof has a 30 degree slope, so you can easily drain the water or snow. 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. 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
20×30 Pavilion Roof Plans
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- E – 56 pieces of 2×6 lumber – 169″ long RAFTERS
- F – 4 pieces of 3/4″ plywood – 24″x96″ long, 4 pieces – 24″x69 3/4″ long, 18 pieces – 48″x96″ long, 6 pieces – 48″x72″ long, 6 pieces – 21 3/4″x96″ long, 2 pieces – 21 3/4″x72″ long ROOF
- G – 2 pieces of 1×4 lumber – 408″ long TRIMS
- H – 1000 sq ft of tar paper, 1000 sq ft of asphalt shingles ROOFING
- 56 pieces of 2×6 lumber – 16′
- 4 pieces of 1×6 lumber – 20′
- 32 pieces of 3/4″ plywood – 4’x8′
- 1000 sq ft of tar paper, 1000 sq ft of asphalt shingles
- rafter ties
- 1 5/8″ screws, 2″ nails
- wood glue, stain/paint
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- PART 1: 20×30 Pavilion Plans
- PART 2: 20x30 Pavilion Roof Plans
How to build a 20×30 pavilion roof
The first step of the project is to build the rafters for the 20×30 pavilion from 2×6 lumber. Mark the cut lines on the beams and then get the job done with a circular or miter saw.
Mark the cut lines to the rafters and then get the job done with a circular saw. Smooth the edges with sandpaper.
Fit the rafters to the top of the pavilion, using the information from the diagram. It is important to space the rafters properly, otherwise you won’t be able to attach the roofing sheets. Use rafters ties to lock the beams into place.
Make sure you place double rafters to the overhangs.
Fit the 1×8 slats to both sides of the roof, for a nice decorative touch. Secure the trims to the end of the rafters with 2″ brad nails.
Use 3/4″ 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.
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.
Fill the holes with wood putty and let them dry out for a few hours. Smooth the surface with 100-200 grit sandpaper and remove the residues with a damp cloth. Apply a few coats of stain or paint to enhance the look of the pavilion.
Don’t forget to take a look over PART 1 of the project, so you learn how to build the frame of the 20×30 pavilion. This pavilion is sturdy and it features a very elegant design that puts and emphasis on cost efficiency and durability. You can add railings to the exterior of the pavilion.
This woodworking project was about 20×30 backyard pavilion 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.