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20x18 Pergola Kits

Maintenance-Free Vinyl and Aluminum 20' x 18' Pergolas Made to Last a Lifetime

Please note that these 20x18 pergolas are 20 feet wide and 18 feet deep. The width and depth are not interchangeable.

The attached pergolas are mounted to the house on the 20-foot width side and come 18 feet out from the house.

For the free-standing pergolas, the shade purlins run the 20-foot width of the pergola (as shown in this illustration) and provide the most shade when the evening sunlight comes from the 20-foot width side.

Click here to see our pergolas with the dimensions reversed.