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The 18x10 pergolas on this page are 18 feet wide and 10 feet deep. The width and depth are not interchangeable. Attached pergolas are mounted to the house on the 18-foot width side and come 10 feet out from the house. For free-standing pergolas, the angled shade purlins run the 18-foot width of the pergola (as shown in this illustration) and therefore 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.
You're currently viewing the Description tab. Please note that there are several other tabs: CAD Drawing, Video, Picture Gallery, Q&As, Shippin...
View full detailsYou're currently viewing the Description tab. Please note that there are several other tabs: CAD Drawing, Video, Picture Gallery, Q&As, Shippin...
View full detailsYou're currently viewing the Description tab. Please note that there are several other tabs: CAD Drawing, Video, Picture Gallery, Q&As, Shippin...
View full detailsYou're currently viewing the Description tab. Please note that there are several other tabs: CAD Drawing, Video, Picture Gallery, Q&As, Shippin...
View full detailsAll of the pergolas featured on this page have an 18' x 10' pergola roof covered by shade purlins, not including the end caps on traditional-style pergolas (which extend 9 inches beyond the ends of the 18' beams and the 10' rafters, unless you opt for flat end caps). So for all of the 18-foot by 10-foot pergolas on this page, the beams and shade purlins are all 18 feet long (as they run the 18-foot width of the pergola), and the rafters are 10' long (as they run the 10-foot depth of the pergola), not including end caps.
The posts (i.e. columns) of a traditional 18' x 10' pergola can be placed anywhere from 0" to 36" in from the outside edges of the beams and rafters (not including the 9" 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 16 feet apart width-wise and 8 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 18x10 pergolas (which never have overhangs), the posts are always in the corners. So for modern pergolas, the outside edges of the posts will be 18 feet apart width-wise and 10 feet apart depth-wise.
To make our pergolas as affordable as possible, we only manufacture the beams, rafters, purlin holders and shade purlins in 2-foot increments. But one or both of the width/depth dimensions of your deck, patio or other outdoor space may be slightly shorter than 18 feet by 10 feet. Using a basic circular saw or miter saw, you can cut any of the pieces down to the exact length required. Thus, the 18x10 pergolas on this page can easily be turned into 17.625-foot by 9.75-foot pergolas (or whatever specific dimensions you need).
Please be careful when ordering your pergola. An 18x10 pergola is not the same as a 10x18 pergola.
The attached 18x10 pergolas on this page will attach to your home on the 18' side and come 10' out from the wall. For free-standing 18 x 10 pergolas, the shade purlins (which create shade underneath the pergola) must run the 18-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 18-foot width side. If your evening sunlight will come from the 10-foot side, you'll want one of these 10x18 pergolas instead.