How to Build a Pergola: Pergola Plans DIY — The Family ...
Builda pergola over an existing patio instead of building a new one saves you a lot of time, money and work. If you’ll be adding a patio later, be sure to pour all the footings at the finished patio height as part of your pergola designs. Keep in mind any slope you’ll include in the patio. Most patios slope about 1/8 in. per foot to drain.