20×24 Pavilion – Free DIY Plans

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This step by step diy woodworking project is about a 20×24 outdoor pavilion plans. I have designed this backyard rectangular pavilion made from 6×6 lumber. This pavilion has a gable roof with a sturdy 2×6 lumber. The roof has a 6:12 pitch and it is sheeted with plywood then asphalt shingled are installed. Take a look over the rest of our 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.

 

 

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20×24 Backyard Pavilion – Free DIY Plans

Building a 20x24 pavilion

Building a 20×24 pavilion

 

  • A – 6 pieces of 6×6 lumber – 132″ long POSTS
  • B – 3 pieces of 6×6 lumber – 240″ long, 4 pieces of 6×6 lumber – 168″ long TOP PLATES
  • D – 14 pieces of 6×6 lumber – 42 1/2″ long BRACES
  • E – 3 pieces of 6×6 lumber – 53 1/4″ long RIDGE BEAM SUPPORTS
  • F – 2 pieces of 6×6 lumber – 168″ long RIDGE BEAM

 One day

 

 

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How to build a 20×24 pavilion

Laying out the 20x24 pavilion

Laying out the 20×24 pavilion

Determining the location for the pavilion is essential, as you have to comply with the local building codes. Make sure the surface is level and remove the vegetation layer.

The first step of the project is to layout the posts for the 20×24 pavilion. Use batter boards and string to determine the location of the posts. Apply the 3-4-5 rule to every corner of the pavilion, so you make sure they are right angled. Moreover measure the diagonals and make sure they are equal.

Posts

Posts

Dig 3′ deep holes into the ground with a post hole digger. Align the holes with attention and then fit form tubes. Fit the 6×6 posts with attention and align them using string. Use a spirit level to plumb the posts and then lock them into place with temporarily braces. Fill the tube forms with concrete and let it dry out for a few days. Setting the pressure treated/cedar posts in concrete is a lot better than using post anchors, as the posts will be locked in the concrete footers.

Alternatively, you can use post base and use 96″ long posts.

Top plates - 20x24 pavilion

Top plates – 20×24 pavilion

Use 6×6 lumber for the top side plates of the pavilion. Use a circular saw to make the notches to beams, as shown in the diagram. Make parallel cuts inside the marked areas and then remove the excess with a chisel. Smooth the surface with sandpaper.

Fitting the top plates - 20x24 pavilion with gable roof

Fitting the top plates – 20×24 pavilion with gable roof

Fit the plate beams to the sides of the pavilion. Make sure the joint falls to the middle of the center post. Align the edges with attention, drill pilot holes and insert 5″ screws to lock the beams into place.

Cross beams

Cross beams

Use 6×6 lumber for the cross beams. Use a circular saw to make notches to both ends of the beams, as shown in the diagram. Smooth the edges thoroughly.

Fitting the cross beams to the frame of the 20x24 pavilion

Fitting the cross beams to the frame of the 20×24 pavilion

Fit the posts to the top of the frame. Plumb the posts with a spirit level and make sure the plates are horizontal. Check if the corners are square and align the edges with attention. Drill pilot holes through the plates and insert 8″ screws into the top of the posts.

Braces - 20x24 pavilion

Braces – 20×24 pavilion

Use 6×6 lumber for the braces. Make 45 degree cuts to both ends of the braces.

Fitting the braces to the frame of the 20x24 pavilion

Fitting the braces to the frame of the 20×24 pavilion

Double check if the posts are plumb and if the corners are square. Secure the braces into place with 5″ screws, after drilling pilot holes. These braces will really enhance the rigidity of the pavilion, so make sure you don’t take shortcuts and install them properly.

Fitting the top ridge - 20x24 pavilion

Fitting the top ridge – 20×24 pavilion

Use 6×6 lumber for the ridge beam supports and for the beam itself. Use a spirit level to plumb the supports and secure them into place with corner brackets. Fit the top ridge into place and use corner brackets to lock them into place, as well. Check if the corners are square and align the edges with attention. Use 8″ screws to reinforce the joists.

Braces to the top ridge - 20x24 pavilion

Braces to the top ridge – 20×24 pavilion

Last but not least, you need to attach the 6×6 braces to the structure of the pavilion, so you can enhance the rigidity. Cut both both ends of the braces at 45 degrees and then secure them into place tightly, with 5″ screws.

20x24 Pavilion Plans

20×24 Pavilion Plans

You should check out PART 2 of the outdoor 20×24 pavilion plans, so you learn how to build the gable roof.

20x24 Pavilion Plans - side view

20×24 Pavilion Plans – side view

Fill the holes with wood putty and let them dry out for a few hours. Smooth the surface with 100-220 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 20×24 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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2 Comments »

  1. Nate at - Reply

    Thank you! Can I pay for a pdf of this plan? https://myoutdoorplans.com/pergola/20×24-pavilion-free-diy-plans/

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