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24x20 Pergola Kits

Maintenance-Free Vinyl and Aluminum 24' x 20' Pergolas Made to Last a Lifetime

The 24x20 pergolas on this page are 24 feet wide and 20 feet deep. The width and depth are not interchangeable. Attached pergolas are mounted to the house on the 24-foot width side and come 20 feet out from the house. For free-standing pergolas, the angled shade purlins run the 24-foot width of the pergola (as shown in this illustration) and therefore provide the most shade when the evening sunlight comes from the 24-foot width side. Click here to see our pergolas with the dimensions reversed.

  • Kit for 24x20 Pergola Built on Existing Deck - White Vinyl w/ Aluminum Frame - Made in USA

    Original price $18,273
    Original price Starting at $18,273
    Original price $18,273
    Current price $17,273
    Original price $1,000 Off
    Starting at $18,273 $17,273
    Current price $17,273
    Original price $1,000 Off
    $1,000 Off

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  • Kit for 24' x 20' Pergola to Attach to House - Tan Vinyl w/ Aluminum Frame - Made in USA

    Original price $19,438
    Original price Starting at $19,438
    Original price $19,438
    Current price $18,438
    Original price $1,000 Off
    Starting at $19,438 $18,438
    Current price $18,438
    Original price $1,000 Off
    $1,000 Off

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  • 24' x 20' Large Outdoor Pergola Attached to House - White Vinyl w/ Aluminum Frame - Made in USA

    Original price $22,254
    Original price Starting at $22,254
    Original price $22,254
    Current price $21,254
    Original price $1,000 Off
    Starting at $22,254 $21,254
    Current price $21,254
    Original price $1,000 Off
    $1,000 Off

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  • 24x20 Giant Pergola Attached to House - Tan Vinyl w/ Aluminum Frame - Made in USA

    Original price $23,024
    Original price Starting at $23,024
    Original price $23,024
    Current price $22,024
    Original price $1,000 Off
    Starting at $23,024 $22,024
    Current price $22,024
    Original price $1,000 Off
    $1,000 Off

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24x20 pergolas have a 24x20 roof - posts are typically further in24x20 Refers to the Size of the Pergola's Roof

All of the pergolas featured on this page have a 24' x 20' pergola roof covered by shade purlins, not including the end caps on traditional-style pergolas (which extend 12 inches beyond  the ends of the 24' beams and the 20' rafters, unless you opt for flat end caps). So for all of the 24-foot by 20-foot pergolas on this page, the beams and shade purlins are all 24 feet long (as they run the 24-foot width of the pergola), and the rafters are 20' long (as they run the 20-foot depth of the pergola), not including end caps.

Post Placement for 24x20 Pergolas

The posts (i.e. columns) of a traditional 24' x 20' pergola can be placed anywhere from 0" to 36" in from the outside edges of the beams and rafters (not including the 12" end caps), as shown in this diagram. Most customers choose to place the posts 12 inches in from the ends of the beams/rafters as shown in this CAD drawing, which puts the outside edges of the posts 22 feet apart width-wise and 18 feet apart depth-wise. But again, you can position the posts anywhere from 0 to 36 inches in from the ends of the beams/rafters to create your desired overhangs. It's also worth noting that the overhang can be different on one side than it is on the other sides, if needed or desired.

For modern-style 24x20 pergolas (which never have overhangs), the posts are always in the corners. So for modern pergolas, the outside edges of the posts will be 24 feet apart width-wise and 20 feet apart depth-wise.

All Parts Can Be Trimmed Down to Your Desired Length

To make our pergolas as affordable as possible, we only manufacture the beams, rafters, purlin holders and shade purlins in 2-foot increments (or 4-foot increments above 20 feet). But one or both of the width/depth dimensions of your deck, patio or other outdoor space may be slightly shorter than 24 feet by 20 feet. Using a basic circular saw or miter saw, you can cut any of the pieces down to the exact length required. Thus, the 24x20 pergolas on this page can easily be turned into 23.625-foot by 19.75-foot pergolas (or whatever specific dimensions you need).

Reminder: Width & Depth Are Not Interchangeable

Please be careful when ordering your pergola. A 24x20 pergola is not the same as a 20x24 pergola.

The attached 24x20 pergolas on this page will attach to your home on the 24' side and come 20' out from the wall. For free-standing 24 x 20 pergolas, the shade purlins (which create shade underneath the pergola) must run the 24-foot width of the pergola. So to maximize the pergola's shade, you will want to orient the pergola such that the evening sunlight comes from the 24-foot width side. If your evening sunlight will come from the 20-foot side, you'll want one of these 20x24 pergolas instead.