As big as you want! Just remember that our joists span 20’ and when connecting two joists there needs to be a post for support.

The installer must consult local building codes to determine the footing or foundation specification, as it varies so much by jurisdiction such as location, frost line, type of soil, etc. and there are just so many variables.

We do not have a wind rating on our pergolas. Our pergolas are made from the same material as Evolution Steel Frame meaning they are much stronger than they need to be as decks are walked on. However, we cannot guarantee that there will not be damage from high winds, hurricanes, and storms.

Check your local building codes. Some localities may require them. It is more common to require a permit for commercial applications, but size and location of the pergola will determine if one is needed.