[header] How to buy a pergola [title] Decide what you intend to use your pergola for. [step] Pergolas are available in either freestanding or attached versions. Knowing the purpose of your pergola should help you figure out how much shade and privacy you'll need. 
Use this information to determine which structure and location will be best for you. [substeps] Attached pergolas can be attached to your house and used as small porches or to your deck to provide an area to entertain guests at a barbecue.