Attached vs Freestanding Pergolas
This is one of the first decisions you'll make when planning a pergola. Both styles have clear advantages depending on your yard, your house, and how you plan to use the space.
Attached Pergolas
An attached pergola connects directly to your house, typically with a ledger board bolted to an exterior wall. The house provides support on one side, so you only need two posts on the outer edge instead of four.
Advantages:
- Creates a seamless extension of your indoor living space — step out the back door and you're under cover
- Fewer posts to set, which simplifies construction
- Can tie into existing patio or deck structures more naturally
- Easier to run electrical from the house for lights and fans
Disadvantages:
- The ledger board attachment creates a potential water intrusion point on your house. Proper flashing is critical to prevent moisture damage behind the siding
- Almost always requires a building permit
- Limited to locations adjacent to the house
- Puts structural load on the house wall, which needs to be framed to handle it
Freestanding Pergolas
A freestanding pergola stands on its own with four or more posts, independent of any building.
Advantages:
- Can be placed anywhere in the yard — over a patio, by the pool, in the garden
- No risk of water damage to your house
- May not require a permit in some jurisdictions (check your local codes)
- Easier to remove or relocate later
Disadvantages:
- Requires four footings instead of two, which is more digging and concrete
- Less integrated feel — it's a separate structure in your yard rather than an extension of your home
- Harder to run electrical if you want lights or ceiling fans
Which Should You Choose?
If your goal is to shade an existing patio right off the back of the house, attached is usually the better choice. If you want shade over a freestanding fire pit area, pool deck, garden seating area, or anywhere away from the house, freestanding is the way to go. For DIY builds, freestanding is generally easier because you avoid the ledger board attachment and the flashing work that comes with it.