12×16 Pavilion Roof Plans

This step by step diy woodworking project is about a 12×16 outdoor pavilion roof plans. This is PART 2 of the rectangular pavilion project, where I show you how to build the roof and how to attach the decorative trims. The roof has a 45 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




12×16 Pavilion Roof Plans




[tabs tab1=”Materials” tab2=”Tools” tab3=”Time” tab4=”Related Plans”] [tab id=1]

  • E – 24 pieces of 2×6 lumber – 120″ long RAFTERS
  • – 8 pieces of 3/4″ plywood – 48″x96″ long, 4 pieces – 24″x48″ long, 2 pieces – 21 1/4″x24″ long, 4 pieces – 21 1/4″x96″ long ROOF
  • G – 380 sq ft of tar paper, 380 sq ft of asphalt shingles ROOFING
  • H – 2 pieces of 1×4 lumber – 216″ long TRIMS
  • I – 4 pieces of 1×6 lumber – 46 3/4″ long TRIMS

  • 24 pieces of 2×6 lumber – 10′
  • 2 pieces of 1×6 lumber – 8′
  • 2 pieces of 1×6 lumber – 18′
  • 12 pieces of 3/4″ plywood – 4’x8′
  • 380 sq ft of tar paper, 380 sq ft of asphalt shingles
  • rafter ties
  • 1 5/8″ screws, 2″ nails
  • wood glue, stain/paint

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 Hammer, Tape measure, Framing square, Level

 Miter saw, Drill machinery, Screwdriver, Sander

 Safety Gloves, Safety Glasses

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 One day

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How to build a 12×16 pavilion roof



The first step of the project is to build the rafters for the 12×16 pavilion from 2×6 lumber. Mark the cut lines on the beams and then get the job done with a circular saw. Make sure you cut out the birds-mouth for a professional result.



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.

Fitting the side roof trims

Fitting the side roof trims

Fit the 1×6 slats to both sides of the roof, for a nice decorative touch. Adjust the width of the trims to 4″ using a saw and secure them to the end of the rafters with 2″ brad nails.

Fitting the roof sheets

Fitting the roof 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.

Gable end trims

Gable end trims

Build the gable end trims from 1×6 or 2×6 lumber. Make 45 degree cuts to one end of the trims, using the information from the diagram.

Fitting the gable end trims

Fitting the gable end trims

Drill pocket holes at both ends of the beams and then secure them into place with 1 1/4″ screws (1×6) or 2 1/2″ screws (2×6).

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.

12x16 Pavilion Plans - Front view

12×16 Pavilion Plans – Front 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.

12x16 Pavilion Plans

12×16 Pavilion Plans

Don’t forget to take a look over PART 1 of the project, so you learn how to build the frame of the 12×16 pavilion. This pavilion is sturdy and it features a very elegant design that puts and emphasis on cost efficiency and durability.



This woodworking project was about 12×16 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.





  1. Eric Bertrand-Loesch
    • Ovidiu
  2. Rodrick Shiver
  3. Kenny Charles
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  4. Kenny Charles
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  5. Kenny Charles
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  6. Shelly Johnson
  7. Jeff
  8. Ryan
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  9. Dr. Hank alviani
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  10. Dr. Hank alviani
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  11. Taylor Simonis
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