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Spring Sale: $1,000 Off + Half-Price Shipping through April 21st

18x20 Pergola Kits

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

Please note that these 18x20 pergolas are 18 feet wide and 20 feet deep. The width and depth are not interchangeable.

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

For the free-standing pergolas, the shade purlins run the 18-foot width of the pergola (as shown in this illustration) and provide the most shade when the evening sunlight comes from the 18-foot width side.

Click here to see our pergolas with the dimensions reversed.

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Side view of a traditional white attached pergola with 2 posts and 8 rafters covering a backyard patio with several pieces of patio furniture
Save 6%

18' x 20' Pergola Attached to House - White Vinyl & Aluminum Pergola Kit

$14,977 $13,977

Traditional 2-post tan pergola with overhangs providing shade for a backyard patio with a table and 7 chairs
Save 6%

18x20 Attached Pergola with Roof - Vinyl Pergola Kit w/ Aluminum Frame

$15,985 $14,985

White 4-post traditional pergola with overhangs providing shade for patio furniture near a house with a beautiful river in the background
Save 5%

18 x 20 Pergola Kit with Roof - Free-Standing White Vinyl Pergola w/ Aluminum Frame

$18,242 $17,242

Sandstone tan 4-post traditional pergola with overhangs at the edge of a cement patio surrounded by flowers and potted plants with trees and a home in the background
Save 5%

Freestanding Pergola 18x20 - Prefabricated Pergola Kit with Roof (Vinyl & Aluminum)

$19,407 $18,407

3-post white vinyl modern pergola attached to a contemporary condo providing shade for an outdoor patio area
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18x20 Pergola Off House with Roof - Vinyl White Pergola w/ Aluminum Frame

$21,401 $20,401

3-post white vinyl modern pergola attached to a contemporary condo providing shade for an outdoor patio area
Save 4%

18 x 20 Modern Pergola Kit Attached to House - Vinyl and Aluminum Pergola

$22,137 $21,137

Modern free-standing white vinyl pergola on a tan deck overlooking a beautiful mountain landscape
Save 3%

18' x 20' White Vinyl and Metal Pergola Kit - Contemporary Pergola with Roof

$25,790 $24,790

Modern-style tan 4-post pergola on a dark wood deck behind a tan house with a bright red door
Save 3%

Modern Pergola 18 x 20 - Maintenance-Free Vinyl Exterior w/ Metal Frame

$26,667 $25,667