{"title":"18x8 Pergolas","description":"\u003cp style=\"margin-top: -45px;\"\u003eWe offer a wide selection of \u003cstrong\u003e18x8 pergola\u003c\/strong\u003e kits, including both \u003ca href=\"https:\/\/zenpergolas.com\/collections\/18x8-pergolas\/type_free-standing\"\u003efree-standing\u003c\/a\u003e and \u003ca href=\"https:\/\/zenpergolas.com\/collections\/18x8-pergolas\/type_attached-to-house\"\u003ehouse-attached\u003c\/a\u003e kits, those with \u003ca href=\"https:\/\/zenpergolas.com\/collections\/18x8-pergolas\/roof-style_shade-canopyies\"\u003eshade canopies\u003c\/a\u003e and those made for a \u003ca href=\"https:\/\/zenpergolas.com\/collections\/18x8-pergolas\/roof-style_wood-slats\"\u003eslatted wood roof\u003c\/a\u003e, and some made for smaller \u003ca href=\"https:\/\/zenpergolas.com\/collections\/18x8-pergolas\/bracket-size_4x4\"\u003e4x4\u003c\/a\u003e wood frames and others for larger \u003ca href=\"https:\/\/zenpergolas.com\/collections\/18x8-pergolas\/bracket-size_6x6\"\u003e6x6s\u003c\/a\u003e. Use the \u003cspan style=\"background: #FFD93A; padding: 2px 4px 2px 4px; border-radius: 4px;\"\u003efiltering options\u003c\/span\u003e below to quickly find the perfect 2-block pergola kit for your outdoor space.\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv style=\"background: #F6F6F6; border-radius: 4px; padding: 12px; text-align: center; margin: 25px 0px -10px 0px;\"\u003e\n\u003cspan style=\"color: #bf262f;\"\u003e\u003ci class=\"fa-solid fa-magnifying-glass\"\u003e\u003c\/i\u003e  \u003cstrong\u003eSIMILAR SIZES:\u003c\/strong\u003e\u003c\/span\u003e  \u003ca href=\"https:\/\/zenpergolas.com\/collections\/8x18-pergolas\"\u003e8x18 pergolas\u003c\/a\u003e  |  \u003ca href=\"https:\/\/zenpergolas.com\/collections\/16x8-pergolas\"\u003e16x8 pergolas\u003c\/a\u003e  |  \u003ca href=\"https:\/\/zenpergolas.com\/collections\/18x10-pergolas\"\u003e18x10 pergolas\u003c\/a\u003e  |  \u003ca href=\"https:\/\/zenpergolas.com\/collections\/20x8-pergolas\"\u003e20x8 pergolas\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c!-- split --\u003e\n\u003ch3\u003e18x8 Refers to the Combined Inner Dimensions of the \u003cem\u003e2 Roof Openings\u003c\/em\u003e\n\u003c\/h3\u003e\n\u003cp\u003eWhen we say a pergola's dimensions are 18x8, we are referring to the combined inside dimensions of the 2 roof openings (inside-edge to inside-edge). All of the kits featured on this page are meant to have 2 roof openings that are \u003cstrong\u003eboth 8' deep\u003c\/strong\u003e and which \u003cu\u003ecombine\u003c\/u\u003e to be a \u003cstrong\u003etotal of 18' wide\u003c\/strong\u003e. (\u003cu\u003eNote\u003c\/u\u003e: If you choose a kit made for a \u003ca href=\"https:\/\/zenpergolas.com\/collections\/18x8-pergolas\/roof-style_wood-slats\"\u003eslatted wood roof\u003c\/a\u003e, the combined width of the 2 roof openings can be divided any way you'd like: both 9' deep \u003cstrong\u003eor\u003c\/strong\u003e one 9.5' and one 8.5' deep \u003cstrong\u003eor\u003c\/strong\u003e one 10' and one 8' deep \u003cstrong\u003eor\u003c\/strong\u003e any other combination that adds up to 18 feet.)\u003c\/p\u003e\n\u003cp\u003eThe overall outside-edge to outside-edge dimensions of the pergola will be:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e19' 2.6\" wide x 8' 7.3\" deep (if you choose a \u003ca href=\"https:\/\/zenpergolas.com\/collections\/18x8-pergolas\/bracket-size_4x4\"\u003ekit for 4x4 posts\u003c\/a\u003e) \u003cstrong\u003eOR\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e19' 10.6\" wide x 8' 11.3\" deep (if you choose a \u003ca href=\"https:\/\/zenpergolas.com\/collections\/18x8-pergolas\/bracket-size_6x6\"\u003ekit for 6x6 posts\u003c\/a\u003e)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWith all of this being said, you can easily change the overall size of your pergola by \u003cstrong\u003etrimming the wood posts\u003c\/strong\u003e that you plan to use for the roof beams. For example, if you wanted the true outside-edge to outside-edge dimensions of a free-standing pergola to be exactly 18' x 8', you would need to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePurchase \u003cu\u003etwo sets\u003c\/u\u003e of two posts totaling 18 feet to be the beams running the 18-foot width, and then cut off a total of 14.6 inches (for 4x4 wood posts) or 22.6 inches (for 6x6 wood posts) \u003cu\u003eper set\u003c\/u\u003e of two posts; and\u003c\/li\u003e\n\u003cli\u003ePurchase three 8-foot posts to be the beams running the 8-foot depth, and then cut off 7.3 inches (for 4x4 wood posts) or 11.3 inches (for 6x6 wood posts) from each one\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cu\u003eImportant Note\u003c\/u\u003e: Our shade canopies are specifically designed to fit roof openings that are exactly 8x8, 8x10, 8x12, 10x10, 10x12 and 12x12. If you're purchasing a \u003ca href=\"https:\/\/zenpergolas.com\/collections\/18x8-pergolas\/roof-style_shade-canopyies\"\u003ekit with shade canopies\u003c\/a\u003e, you \u003cstrong\u003ecannot\u003c\/strong\u003e trim down the roof beam posts. Furthermore, all roof posts must be 8-, 10- or 12-foot lengths.\u003c\/p\u003e\n\u003ch3\u003eReminder: Width \u0026amp; Depth Are \u003cu\u003eNot\u003c\/u\u003e Always Interchangeable\u003c\/h3\u003e\n\u003cp\u003e18' x 8' pergolas are different from \u003ca href=\"https:\/\/zenpergolas.com\/collections\/8x18-pergolas\"\u003e8' x 18' pergolas\u003c\/a\u003e. The \u003ca href=\"https:\/\/zenpergolas.com\/collections\/18x8-pergolas\/type_attached-to-house\"\u003ewall-mounted pergolas\u003c\/a\u003e on this page will attach to your home on the 18' width side and come 8' out from the house wall. For \u003ca href=\"https:\/\/zenpergolas.com\/collections\/18x8-pergolas\/type_free-standing+roof-style_wood-slats\"\u003efree-standing pergolas with a slatted roof\u003c\/a\u003e, the roof rafters will be mounted to the 8' beams and run the 18-foot width of the pergola (providing more shade when the afternoon\/evening sunlight comes from the \u003cstrong\u003e18-foot width side\u003c\/strong\u003e). If your afternoon\/evening sunlight will come from the 8-foot side, you'll want an \u003ca href=\"https:\/\/zenpergolas.com\/collections\/8x18-pergolas\"\u003e8x18 pergola\u003c\/a\u003e instead.\u003c\/p\u003e","products":[{"product_id":"18x8-pergola-with-roof-free-standing-diy-kit","title":"Free-Standing 18' x 8' Pergola with Roof","description":"\u003c!----\u003e","brand":"Zen Pergolas","offers":[{"title":"No roof (frame only)","offer_id":42226054398132,"sku":"Free18x8Lg","price":1199.0,"currency_code":"USD","in_stock":true},{"title":"Straight inline 2x6 slats [+$300]","offer_id":42801290707124,"sku":"Free18x8Lg-26IBx20","price":1499.0,"currency_code":"USD","in_stock":true},{"title":"2x6 rafters atop beams [+$345]","offer_id":42801290739892,"sku":"Free18x8Lg-26RBx15","price":1544.0,"currency_code":"USD","in_stock":true},{"title":"Inline 6x6 posts [+$252]","offer_id":42801290772660,"sku":"Free18x8Lg-66IBx12","price":1451.0,"currency_code":"USD","in_stock":true},{"title":"Angled 2x6 slats [+$480]","offer_id":42801290805428,"sku":"Free18x8Lg-26IBx32","price":1679.0,"currency_code":"USD","in_stock":true},{"title":"Shade canopies [+$270]","offer_id":43205732040884,"sku":"Free18x8Lg-CPY88B-CPY810B","price":1469.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0613\/1390\/8916\/products\/FreeDblLg-InlineMed_24772681-2441-4f68-9956-02acbdd52da9.png?v=1747272943"},{"product_id":"free-standing-18x8-pergola-kit-with-roof","title":"Freestanding 18x8 Pergola Kit with Roof","description":"\u003c!----\u003e","brand":"Zen Pergolas","offers":[{"title":"No roof (frame only)","offer_id":42226024120500,"sku":"Free18x8Sm","price":599.0,"currency_code":"USD","in_stock":true},{"title":"Straight inline 2x4 slats [+$240]","offer_id":42801277796532,"sku":"Free18x8Sm-24IBx20","price":839.0,"currency_code":"USD","in_stock":true},{"title":"2x4 rafters atop beams [+$240]","offer_id":42801277829300,"sku":"Free18x8Sm-24RBx15","price":839.0,"currency_code":"USD","in_stock":true},{"title":"Inline 4x4 posts [+$240]","offer_id":42801277862068,"sku":"Free18x8Sm-44IBx16","price":839.0,"currency_code":"USD","in_stock":true},{"title":"Angled 2x4 slats [+$432]","offer_id":42801277894836,"sku":"Free18x8Sm-24IBx36","price":1031.0,"currency_code":"USD","in_stock":true},{"title":"Shade canopies [+$270]","offer_id":43198780670132,"sku":"Free18x8Sm-CPY88B-CPY810B","price":869.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0613\/1390\/8916\/products\/FreeDblSm-InlineMed_e759d6a0-08ed-4ca9-a364-4ccb4b993039.png?v=1747272591"},{"product_id":"18x8-pergola-attached-to-house-with-roof","title":"18' x 8' Pergola Attached to House with Roof","description":"\u003c!----\u003e","brand":"Zen Pergolas","offers":[{"title":"No roof (frame only)","offer_id":42225995940020,"sku":"Att18x8Lg","price":799.0,"currency_code":"USD","in_stock":true},{"title":"Straight inline 2x6 slats [+$300]","offer_id":42806613213364,"sku":"Att18x8Lg-26IBx20","price":1099.0,"currency_code":"USD","in_stock":true},{"title":"2x6 rafters atop beams [+$345]","offer_id":42806613246132,"sku":"Att18x8Lg-26RBx15","price":1144.0,"currency_code":"USD","in_stock":true},{"title":"Inline 6x6 posts [+$252]","offer_id":42806613278900,"sku":"Att18x8Lg-66IBx12","price":1051.0,"currency_code":"USD","in_stock":true},{"title":"Angled 2x6 slats [+$480]","offer_id":42806613311668,"sku":"Att18x8Lg-26IBx32","price":1279.0,"currency_code":"USD","in_stock":true},{"title":"Shade canopies [+$270]","offer_id":43209920020660,"sku":"Att18x8Lg-CPY88B-CPY810B","price":1069.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0613\/1390\/8916\/products\/Att2x1Lg-InlineMed_a67139b3-d498-4f0c-bfc9-f4e569ccdccd.png?v=1747272290"},{"product_id":"attached-18x8-pergola-with-roof-diy-hardware-kit","title":"Attached 18x8 Pergola Off House with Roof","description":"\u003c!----\u003e","brand":"Zen Pergolas","offers":[{"title":"No roof (frame only)","offer_id":42225960714420,"sku":"Att18x8Sm","price":399.0,"currency_code":"USD","in_stock":true},{"title":"Straight inline 2x4 slats [+$240]","offer_id":42806599647412,"sku":"Att18x8Sm-24IBx20","price":639.0,"currency_code":"USD","in_stock":true},{"title":"2x4 rafters atop beams [+$240]","offer_id":42806599680180,"sku":"Att18x8Sm-24RBx15","price":639.0,"currency_code":"USD","in_stock":true},{"title":"Inline 4x4 posts [+$240]","offer_id":42806599712948,"sku":"Att18x8Sm-44IBx16","price":639.0,"currency_code":"USD","in_stock":true},{"title":"Angled 2x4 slats [+$432]","offer_id":42806599745716,"sku":"Att18x8Sm-24IBx36","price":831.0,"currency_code":"USD","in_stock":true},{"title":"Shade canopies [+$270]","offer_id":43206262030516,"sku":"Att18x8Sm-CPY88B-CPY810B","price":669.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0613\/1390\/8916\/products\/Att2x1Sm-InlineMed_1fac2532-2b9a-49d8-b7bb-0e4fe474c8d7.png?v=1747272003"},{"product_id":"stand-alone-18x8-pergola-with-canopy","title":"18 x 8 Pergola with Canopies","description":"\u003c!----\u003e","brand":"Zen Pergolas","offers":[{"title":"Default Title","offer_id":43041405075636,"sku":"Free18x8Sm-CPY88B-CPY810B","price":859.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0613\/1390\/8916\/files\/FreeDblSm-CPY1212Bx2-SideView_d5c71707-0225-4e81-a27f-bea649d37010.jpg?v=1747269943"},{"product_id":"wall-mounted-18x8-pergola-with-shade-cover","title":"18' x 8' Pergola with Shade Covers","description":"\u003c!----\u003e","brand":"Zen Pergolas","offers":[{"title":"Default Title","offer_id":43042204418228,"sku":"Att18x8Sm-CPY88B-CPY810B","price":659.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0613\/1390\/8916\/files\/Att2x1Sm-CPY1212Bx2-SideView_1391aac5-32df-45cf-98ef-0eaa2b42c211.jpg?v=1747269931"},{"product_id":"18x8-covered-pergola-with-sun-shade","title":"18x8 Covered Pergola with Sun Shades","description":"\u003c!----\u003e","brand":"Zen Pergolas","offers":[{"title":"Default Title","offer_id":43051444764852,"sku":"Free18x8Lg-CPY88B-CPY810B","price":1459.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0613\/1390\/8916\/files\/FreeDblLg-CPY1212Bx2-SideView_e917ff24-6e24-4333-bc73-ebee2946f44f.jpg?v=1747269881"},{"product_id":"attached-18-by-8-pergola-and-canopy","title":"18 by 8 Pergola and Canopies","description":"\u003c!----\u003e","brand":"Zen Pergolas","offers":[{"title":"Default Title","offer_id":43053223018676,"sku":"Att18x8Lg-CPY88B-CPY810B","price":1029.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0613\/1390\/8916\/files\/Att2x1Lg-CPY1212Bx2-SideView_8842ac68-6bd7-42d6-85c7-4d15f49c21f8.jpg?v=1747269851"}],"url":"https:\/\/zenpergolas.com\/collections\/18x8-pergolas\/type_free-standing+roof-style_wood-slats.oembed","provider":"Zen Pergolas","version":"1.0","type":"link"}