{"product_id":"simpson-strong-tie-cb-column-base-for-8x8-cb88-r029g3","title":"Simpson Strong-Tie CB Column Base for 8x8 (CB88)","description":"\u003csection data-aplus\u003e\n\u003cdetails id=\"product-features\" class=\"acc\" open\u003e\n  \u003csummary\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"features\"\u003e\n      \u003cdiv class=\"card\"\u003e\n        \u003cdiv class=\"card-inside\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/capacity.svg\" alt=\"capacity\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003eBuilt for Structural Loads\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eThe CB88 is made for post-to-concrete connections where uplift and bearing matter. It is a solid pick for columns that need higher structural values in deck and footing work.\u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"card\"\u003e\n        \u003cdiv class=\"card-inside\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/material.svg\" alt=\"material\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003eHeavy Steel Construction\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eWith a 3-gauge strap and 7-gauge base, this column base is built for rugged service. That thicker steel matters when the connection is doing real structural work, not just holding a post in place.\u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"card\"\u003e\n        \u003cdiv class=\"card-inside\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/accuracy.svg\" alt=\"accuracy\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003eCode-Spaced Bolt Holes\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eThe bolt hole layout is designed to meet code-required spacing for optimal capacity. That saves guesswork during layout and helps keep the connection aligned with published load data.\u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-overview\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eOverview\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\" data-product-summary\u003e\n    \u003cp\u003eThe \u003cstrong\u003eSimpson Strong-Tie CB88 CB Column Base for 8x8\u003c\/strong\u003e is a cast-in-place column base designed to connect an 8x8 post to a concrete footing or foundation. This is a \u003cstrong\u003ecolumn base\u003c\/strong\u003e designed for \u003cstrong\u003epost-to-concrete structural anchoring\u003c\/strong\u003e. Model Number: \u003cstrong\u003eCB88\u003c\/strong\u003e. If you are building decks, porch roofs, or other top-supported structures where the post connection needs real load capacity, this connector is made for that job.\u003c\/p\u003e\n    \u003cp\u003eWhat sets the CB series apart is that it is meant for columns requiring high structural values and rugged performance. Simpson Strong-Tie calls out increased uplift resistance for wind or seismic loading, and that matters in the real world because the post base is not just supporting weight straight down. It also has to resist pull-up forces and keep the connection working when the structure sees lateral movement or weather-driven loads.\u003c\/p\u003e\n    \u003cp\u003eFor the CB88 specifically, the nominal column size is 8x8, and the steel build is substantial: a 3-gauge strap paired with a 7-gauge base. In practical terms, that means this is not a light-duty decorative bracket. It is a structural connector intended for serious post support where bearing, bolt spacing, and embedment all affect the finished assembly.\u003c\/p\u003e\n    \u003cp\u003eThe CB88 is installed cast-in-place or wet set into concrete with the bottom of the base plate flush with the concrete for full post bearing. That flush-bearing design is important because it allows the post load to transfer properly into the base and footing. According to Simpson Strong-Tie installation guidance, for full loads the minimum side cover required is 3 inches for CB models, and the connector should be installed with the bottom of the base plate flush with the concrete.\u003c\/p\u003e\n    \u003cp\u003eBolt hole locations are laid out to meet code-required spacing for optimal capacity. Lowe's lists installation with \u003cstrong\u003e(2) 3\/4-inch diameter machine bolts\u003c\/strong\u003e. That gives you a clear starting point when planning the post connection, and it helps keep the field install aligned with how this base is intended to perform. As with any structural connector, using the specified fasteners is part of getting the published performance from the hardware.\u003c\/p\u003e\n    \u003cp\u003eFrom a material and finish standpoint, the CB88 is steel with a Simpson Strong-Tie gray paint finish in the standard version shown here. That painted finish is common for general use, and Simpson also notes that some CB products may be available with additional corrosion protection options depending on project requirements. If the base is going into an environment with higher corrosion exposure, that is worth checking before you order.\u003c\/p\u003e\n    \u003cp\u003eOne thing worth being direct about: Simpson Strong-Tie states that post bases do not provide adequate resistance to prevent members from rotating about the base, so they are not recommended for non-top-supported installations such as fences or unbraced carports. That is not a flaw in the product. It is just the right-use-case line. The CB88 is for properly supported structural posts, not free-standing assemblies that rely on the base alone to stop rotation.\u003c\/p\u003e\n    \u003cp\u003eThe best buyer for this connector is a deck builder, framing contractor, remodeler, or serious DIYer working on post-to-footing structural connections. If you need a cast-in-place 8x8 post base with real capacity, proper bolt spacing, and a known installation path from a major structural hardware brand, the CB88 checks the right boxes.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-benefits\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eHeavy-Duty Post Support You Can Build Around\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"row\"\u003e\n      \u003cdiv class=\"img\"\u003e\n        \u003cimg src=\"https:\/\/ssttoolbox.widen.net\/content\/mjrzbxdi8q\/jpeg\/C_CB88_ProdPho_RI_Prod_ColumnBase_C0.jpeg?position=c\u0026amp;color=ffffffff\u0026amp;u=cjmyin\" alt=\"Simpson Strong-Tie CB88 CB Column Base for 8x8 shown as a painted steel post base for cast-in-place deck and column footing connections on a jobsite foundation\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eThis is the kind of connector you use when the post base is part of the structural conversation, not an afterthought. The CB88 is sized for 8x8 posts and built to transfer load into concrete with full post bearing.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003eDesigned for wood-to-concrete cast-in-place applications\u003c\/li\u003e\n          \u003cli\u003eNominal 8x8 column size\u003c\/li\u003e\n          \u003cli\u003eGray painted steel construction\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-benefits-2\" class=\"acc flip\"\u003e\n  \u003csummary\u003e\u003ch2\u003eHole Layout That Matches the Intended Load Path\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"row\"\u003e\n      \u003cdiv class=\"img\"\u003e\n        \u003cimg src=\"https:\/\/ssttoolbox.widen.net\/content\/c0eddl85ep\/jpeg\/CB_callout.jpeg?position=c\u0026amp;color=ffffffff\u0026amp;u=cjmyin\" alt=\"Simpson Strong-Tie CB88 CB Column Base for 8x8 engineering callout showing bolt hole spacing and side plate dimensions for structural post anchoring to concrete\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eThe dimensions and bolt spacing are not random. They are laid out so the connector can be installed with the correct machine bolts and meet code-required spacing that supports the published capacity of the base.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003eBolt hole locations meet code-required spacing for optimal capacity\u003c\/li\u003e\n          \u003cli\u003eInstall with (2) 3\/4-inch diameter machine bolts\u003c\/li\u003e\n          \u003cli\u003eBuilt for columns that need high structural values and rugged performance\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-key-specifications\" class=\"acc\" open\u003e\n  \u003csummary\u003e\u003ch2\u003eKey Specifications\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003ctable class=\"aplusspecs\"\u003e\n      \u003ctr\u003e\n        \u003cth\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/material.svg\" alt=\"material\" class=\"aplusicon\"\u003e Material\u003c\/th\u003e\n        \u003ctd\u003eSteel\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/size.svg\" alt=\"size\" class=\"aplusicon\"\u003e Nominal Column Size\u003c\/th\u003e\n        \u003ctd\u003e8 x 8\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/depth.svg\" alt=\"depth\" class=\"aplusicon\"\u003e Depth\u003c\/th\u003e\n        \u003ctd\u003e7.5 in\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/size.svg\" alt=\"size\" class=\"aplusicon\"\u003e Width\u003c\/th\u003e\n        \u003ctd\u003e8.563 in\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/weight.svg\" alt=\"weight\" class=\"aplusicon\"\u003e Weight\u003c\/th\u003e\n        \u003ctd\u003e11.4 lbs\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/material.svg\" alt=\"material\" class=\"aplusicon\"\u003e Strap Gauge\u003c\/th\u003e\n        \u003ctd\u003e3 gauge\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/material.svg\" alt=\"material\" class=\"aplusicon\"\u003e Base Gauge\u003c\/th\u003e\n        \u003ctd\u003e7 gauge\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/color.svg\" alt=\"color\" class=\"aplusicon\"\u003e Finish\u003c\/th\u003e\n        \u003ctd\u003eSimpson Strong-Tie gray paint\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-applications-uses\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eBuilt For\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"tags\"\u003e\n      \u003cspan class=\"tag\"\u003eDeck Building\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003ePost-to-Footing Connections\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eCarpentry\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eGeneral Contracting\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eRemodeling\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003ePorch and Roof Posts\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eTop-Supported Structures\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eWood to Concrete Installation\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-pro-tips\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003ePro Tip\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"tip-row\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/specs.svg\" alt=\"specs\" class=\"icon-lg\"\u003e\n      \u003cp class=\"tip-text\"\u003eWhen you set a CB88 in concrete, keep the bottom of the base plate flush with the concrete and maintain the required side cover. Simpson specifies 3 inches minimum side cover for full loads, so plan that footing size before the pour, not after.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-warranty\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eWarranty \u0026amp; Support\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"warranty-row\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/warranty.svg\" alt=\"warranty\" class=\"icon-sm\"\u003e\n      \u003cdiv class=\"warranty-text\"\u003e\n        Lowe's lists this product warranty as \u003cstrong\u003eNone\u003c\/strong\u003e.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-tool-nut-take\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eTool Nut's Take\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"eyebrow\"\u003eTool Nut's Take\u003c\/div\u003e\n    \u003ch3\u003eSimpson Strong-Tie CB88 CB Column Base for 8x8 Is the Right Kind of Overbuilt\u003c\/h3\u003e\n    \u003cp\u003eIf you are setting an 8x8 post into a concrete-supported structural system, this is the kind of base you buy when you want the connection to be taken seriously.\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWho it's for:\u003c\/strong\u003e Deck builders, framers, remodelers, and serious DIY users handling structural post-to-concrete work.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhy it stands out:\u003c\/strong\u003e Heavy steel, code-spaced bolt holes, and a design intended for high structural values instead of light-duty trim work.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWorth knowing:\u003c\/strong\u003e This is for top-supported structures. Like other post bases, it is not meant to stop a free-standing post from rotating on its own.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-faqs\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eCommon Questions\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhat size post does this base fit?\u003c\/strong\u003e It is designed for a nominal 8 x 8 column.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eHow is the CB88 installed?\u003c\/strong\u003e It is installed cast-in-place or wet set into concrete, with the bottom of the base plate flush with the concrete.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhat bolts does it use?\u003c\/strong\u003e Lowe's lists installation with two 3\/4-inch diameter machine bolts.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eIs this a good choice for a fence or other free-standing post?\u003c\/strong\u003e No. Simpson Strong-Tie states that post bases do not provide adequate resistance to prevent rotation in non-top-supported installations.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e","brand":"Simpson Strong-Tie","offers":[{"title":"Default Title","offer_id":43569895047216,"sku":"CB88","price":18.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0699\/4876\/8304\/files\/8nu5mya08fjq_275d16f0-b588-4c18-8b0b-c5e572e0849a.jpg?v=1788570709","url":"https:\/\/toolnutus.com\/products\/simpson-strong-tie-cb-column-base-for-8x8-cb88-r029g3","provider":"InoPrints","version":"1.0","type":"link"}