This step by step diy woodworking project is about a 20×30 outdoor pavilion plans. I had a request for a large pavilion with a simple design, so I’ve come up with this design. This small pavilion has a gable roof and it is super simple to build. Make sure you take a look over the local building codes, so you comply with the regulations. 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. See all my Premium Plans HERE.
Projects made from these plans
20×30 Pavilion Plans
- A – 12 pieces of 6×6 lumber – 132″ long POSTS
- B – 4 pieces of 6×6 lumber – 206 3/4″ long, 2 pieces – 240″ long TOP PLATES
- C – 16 pieces of 6×6 lumber – 48″ long, 2 pieces – 60″ long BRACES
- D – 2 pieces of 6×6 lumber – 68 1/4″ long, 1 piece – 408″ long TOP RIDGE
- 12 pieces of 6×6 lumber – 12′
- 6 pieces of 6×6 lumber – 20′
- 4 pieces of 6×6 lumber – 6′
- 8 pieces of 6×6 lumber – 8′
- 1 piece of 6×6 lumber – 34′
- 5 1/2″ screws, 3 1/2″ screws
- wood glue, stain/paint
- post hole digger
- post anchors (optional)
- beam to post connectors
- structural screws for connectors
- strong tie T
Hammer, Tape measure, Framing square, Level
Miter saw, Drill machinery, Screwdriver, Sander
- PART 1: 20×30 Pavilion Plans
- PART 2: 20x30 Pavilion Roof Plans
How to build a 20×30 pavilion
The first step of the project is to layout the posts for the 20×30 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. 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.
Level the surface with attention. Remove the vegetation layer, as well. 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.
Use 6×6 lumber for the top plates of the pavilion. As you can notice in the plans, you have to make notches to the beams, so you can join then them together. Mark the areas and then make parallel cuts with a circular saw set at a depth of 2 3/4″. Remove the excess material with chisel and smooth the recess with sandpaper.
Repeat the process for the front and back top plates of the pavilion. Make the notches and remove the excess.
Fit the rails to the sides of the pavilion. Align the edges flush, making sure the corners are square, drill pilot holes and insert 5 1/2″ screws.
Framing the roof supports
Continue the project by building the ridge beam. Make recesses to the beam, so you can fit it into place properly.
Fit the 6×6 supports to the front and back of the pavilion. Plumb the support with a spirit level and make sure the corners are square.
Build the braces from 6×6 lumber. Cut both ends of the braces at 45 degrees and then fit them into place tightly. Leave no gaps between the components, drill pilot holes and insert 5 1/2″ screws.
Fit the 6×6 braces to secure the ridge beam.
Fit the 4×4 braces to the top ridge. Make sure the corners are square before fitting the braces into place.
You should check out PART 2 of the 20×30 pavilion plans, so you learn how to build the gable roof.
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. PREMIUM PLANS available for a 20×30 gable pavilion in the SHOP.
This woodworking project was about 20×30 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.
We are reviewing your 20×30 pavilion. Although we feel your design is excellent, the availability of 6x6x20 and 6x6x34 treated lumber is non-existent. We are having to re-engineer with shorter timbers and sandwich them together.
Yes, that is an option. You can usually join pieces together if there are not available in longer sizes.
Do you know what the snow load of the roof would be? I love this plan and would like to build it on my property in the mountains.
I don’t know. The safest bet would be to read the local codes and modify my plans accordingly.
I am not an engineer or a professional builder. I have built projects like this in the past only as a hobby or for personal satisfaction. I really enjoy looking at your plans and am actually getting ready to build a pavilion using your designs. My question about this 20 x 30 is not meant as an insult or to discredit anyone, so please don’t interpret it like that.
Is using a 6 x 6 x 34 ft as a ridge beam without center support a good idea? That’s a huge piece of wood, it’s own weight alone could potentially be enough to cause sagging over time.
You brought up a very good point. To remedy that concern would be to add a cross brace in the center on the top plate, below the Ridge Beam in the middle & support it just like the front & back.
Exactly what I was looking for as far as size but would you happen to have plans for same size but with a double hip roof
I don’t have plans for that yet.
i need plan to build pavilion in church place with 6″ concrete slab.. Can you please advice where to get one
Do you have premium plans available for this project? I looked on your premium sit but wasn’t able to find the plans for this project.