12×16 Lean to Pavilion Plans

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This step by step diy project is about 12×16 pavilion with lean to roof plans. This pavilion has a ground area of 12 ft x 16 ft, but the roof is wider so it will protect more space. This pavilion features a post frame structure made from 6x6s. The roof has a lean to slope of 3:12. Make sure you read the local building codes before starting the project, so you get aware of the legal requirements and make the necessarily adjustments. 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

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12×16 Pavilion with Lean to Roof Plans

Building a 12x16 lean to pavilion

Building a 12×16 lean to pavilion

 

  • A – 6 pieces of 6×6 lumber – 8′ long POSTS
  • B – 3 pieces of 6×6 lumber – 12′ long, 2 pieces – 16′ long SUPPORT BEAMS
  • C – 1 piece of 6×6 lumber – 18′ long, 3 pieces – 30 1/2″ long, 2 pieces – 92 1/2″ long TOP FRAME
  • D – 12 piece of 6×6 lumber – 36″ long BRACES

 One weekend

 

 

12×16 Lean to Pavilion Plans

Laying out the posts for the pavilion

Laying out the posts for the pavilion

The first step of the project is to lay out the pavilion posts. Build batter boards and use string to layout everything in a professional manner. Apply the 3-4-5 rule to every corner and make sure the diagonal are equal, otherwise the corners won’t be square. Select the location for the pavilion with attention, making sure it complies with the local codes. Get a building permit if needed. Level the surface with attention, removing the vegetation layer.

Setting the posts in concrete

Setting the posts in concrete

You need to set the posts in concrete (about 3-6′ deep – make sure you read the local building codes for accurate information) or use anchors. Use a post hole digger to make the holes. Pour a 2″ layer of concrete on the bottom of the holes so you level them. Fit the tube forms and then the 6×6 posts / fit the anchors. Use a spirit level to make sure the posts are plumb and then secure them temporarily into place with braces. Fill the tubes with concrete and let it dry out as shown on the bags. Make sure the top of the posts are level.

Top plates - 12x16 pavilion

Top plates – 12×16 pavilion

Use 6×6 lumber for the plates that go on top of the posts. Use a circular saw to make the notches, so you can join them together. Make parallel cuts inside the marked areas and then remove the excess with a hammer and a chisel.

Side top plates

Side top plates

Fit the 6×6 plates to the sides of the garden pavilion. Align the edges with attention and make sure the corners are square. Drill pilot holes through the plates and insert 5 1/2″ screws into the top of the posts.

Fitting the top plates

Fitting the top plates

Fit the rest of the plates to the top of the pavilion. Check if the corners are square and align the edges flush. Drill pilot holes and insert 8″ screws.

Top back wall frame - 12x16 lean to pavilion

Top back wall frame – 12×16 lean to pavilion

Next, you need to build the top side frame, so you can frame the lean to roof. You can adjust the size of the supports to determine the slope of the roof. Use post to beam connectors to secure the posts into place. Make sure the corners are square.

Top diagonal braces

Top diagonal braces

Make angle cuts to to both ends of the 6×6 braces.

Fitting the top diagonal braces

Fitting the top diagonal braces

Fit the braces to the pavilion, as shown in the diagram. Drill pilot holes and insert 5 1/2″ screws to lock them into place.

Fitting the corner braces to the pavilion

Fitting the corner braces to the pavilion

Use 6×6 lumber for the diagonal braces. Fit the braces to the frame of the pavilion, as shown in the diagram. Plumb the posts with a spirit level and make sure the corners are square. Fit the braces into place, drill pilot holes and insert 5 1/2″ screws to lock them into place tightly.

12x16 Lean to pavilion plans

12×16 Lean to pavilion plans

I recommend you to take a look over PART 2 of the  project, where I show you how to build the lean to roof for the outdoor pavilion.

12x16 Lean to pavilion plans - back view

12×16 Lean to pavilion plans – back view

This garden pavilion with a lean to roof has a footprint of 12×16. The roof structure is strong enough for winds and snow, but I recommend you to read the local codes and make modifications, if necessary. You should also take a look over my 10×16 gazebo with lean to roof, as it makes for a more stylish alternative to this plan.

 

 

This woodworking project was about 12×16 pavilion with lean to 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.

 

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