On a deck you re going to need to connect wood to wood which can potentially make the pergola less stable.
Adding a pergola to a deck.
Working with an existing structure can cause additional constraints when adding this feature to your backyard oasis.
Building an attached pergola 16 feet by 20 feet on your deck can be done by first determining if your deck is big enough for this size of pergola.
Place 4x4x10 posts at the same locations as the deck posts.
The main concern is how the structure will react under high wind conditions.
When you re ready to build a pergola on your deck the backyard showcase is the team to trust.
These would pass thru the deck floor and rest on the beams below.
When you build on the ground you can bury your posts in the ground and use gravel dirt or concrete to give them more stability.
Adding a structure such as an aluminum pergola to provide shade and cover from precipitation will allow you to maximize your time on your deck and ensure that you are always comfortable.
There are lots of points to consider as you add a pergola to your deck from selecting the right wood species or stain colors to finding the perfect dimensions and positioning for this new structure and ensuring that your deck is up to the task of supporting the added weight.
It is very important to properly attach pergola posts when installing a pergola over a deck.
Most deck builders bolt pergola support posts to the frame of the deck using 2 1 2 x 6 lag screws with washers per post.
Start designing your deck pergola at the backyard showcase.
Whether you want to buy your pergola online have a conversation with one of our experienced exterior designers or stop by our backyard showroom we d love to help.
Building a pergola on top of a deck is a bit more complex than building directly on the ground.
For the 4 posts that are at the outer edges of the deck a b d e lag bolt the new posts to the adjacent joists.