16×24 Backyard Pavilion Roof – Free DIY Plans


This step by step diy woodworking project is about a 16×24 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 12:6 pitch, but you easily adjust it, if you need something else. 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.



Projects made from these plans




16×24 Pavilion Roof Plans

Building a 16x24 pavilion

Building a 16×24 pavilion


  • F – 30 pieces of 2×6 lumber – 120″ long RAFTERS
  • – 8 pieces of 3/4″ plywood – 48″x96″ long, 4 pieces – 48″x48″ long, 4 pieces – 24″x96″ long, 4 pieces – 21 1/2″x24″ long, 4 pieces – 21 1/2″x96″ long, 2 pieces – 21 1/2″x48″ long ROOF SHEETS
  • H – 4 pieces of 1×8 lumber – 122″ long, 2 pieces – 288″ long TRIMS
  • I – 500 sq ft of tar paper, 500 sq ft of asphalt shingles ROOFING

 One day



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How to build a 15×20 pavilion roof

Building the rafters

Building the rafters

Use 2×6 lumber for the rafters. Make 26.6 degree cuts to both ends of the 2×6 rafters. Mark the cut lines to the rafters and then get the job done with a circular saw. Smooth the edges with sandpaper. Make the notches into the rafters, so you can fit them into place tightly.

Fitting the rafters to the pavilion

Fitting the rafters to the pavilion

Fit the rafters to the top of the pavilion, using the information from the diagram. It is important to space the rafters properly (every 24″ on center), otherwise you won’t be able to attach the roofing sheets. Use rafters ties to lock the beams into place.

Roofing sheets

Roofing sheets

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.

Fitting the side trims

Fitting the side trims

Fit 1×8 trims to the sides of the pavilion. Align the edges with attention and insert 2″ nails to lock them into place tightly.

Gable trims

Gable trims

Fit the 1×8 trims to the front and back of the pavilion. Make the angle cuts to the trims before locking them into place with 2″ nails.

Fitting the roof

Fitting the roof

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.

16x24 Pavilion Plans - Side view

16×24 Pavilion Plans – Side view

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. Make sure you take a look over PART 1 of the project, where I show you how to build the frame of the pavilion.

16x24 Pavilion Plans

16×24 Pavilion Plans

Fill the holes with wood putty and let them dry out for a few hours. Smooth the surface with 100-220 grit sandpaper and remove the residues with a damp cloth.

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.



This woodworking project was about 16×24 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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  1. Jason Vanmeter at - Reply

    Looking for the same concept as you 16 x24 plan for a 20×30.

    I want to span the 20 section with a good enough header so I can leave open without a support beam in the middle. Any chance you have a plan that covers that. Also looking to use metal roofing so I would skip the plywood roof and lay down 2×4 across the roof trusses to fasten too

    • Ovidiu at - Reply

      I don’t have plans for what you are looking for.

  2. Josh at - Reply

    It says it calls for 6 pieces of 1×8 lumber at 12’ in length. It should be 8 though correct? Two 12’ pieces are needed on each of the 4 sides.

    • Ovidiu at - Reply

      Yes, list updated. Thank you.

  3. Andi Breeck at - Reply

    What is the cost associated with this plan for the materials?

  4. Daniel Rittatore at - Reply

    i would like to use this for a 14′ x 19′ structure. can i use these plans? if so what would be the main edits? you also dont call out the quantities of screws/hardware.

  5. Joel W at - Reply

    Thank you for your time sharing these amazing plans! I am almost finished with the main structure using these plans and am preparing to order materials for the roof.

    Do you think it would be okay to use 4×6 rafters @ 4′ OC with 2×6 Tongue and Groove roof deck? Thanks again!

    • Ovidiu at - Reply

      I don’t recommend that. The spacing is too wide. I would use 2x6s every 2 ft

      • Joel W at -

        That’s what I will do, thank you!

        Do you recommend rafter ties on the top and bottom of the rafters or just the bottom?

      • Ovidiu at -

        Use the rafter ties at both ends.

  6. Cindy brown at - Reply

    Im looking for plans for a 12×12 gazebo roof on 4or posts