{"product_id":"simpson-strong-tie-zmax-galvanized-adjustable-standoff-post-base-for-8x8-abu88z","title":"Simpson Strong-Tie ZMAX Galvanized Adjustable Standoff Post Base for 8x8 (ABU88Z)","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\/accuracy.svg\" alt=\"accuracy\" class=\"aplusicon\"\u003e\n          \u003c\/div\u003e\n          \u003cdiv\u003e\u003cstrong\u003eAdjustable Placement\u003c\/strong\u003e\u003c\/div\u003e\n          \u003cdiv class=\"feature-card\"\u003eThe slotted base gives you flexibility around the anchor bolt, so lining up an 8x8 post is easier when the bolt is not dead center.\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\/depth.svg\" alt=\"depth\" class=\"aplusicon\"\u003e\n          \u003c\/div\u003e\n          \u003cdiv\u003e\u003cstrong\u003e1 Inch Stand-Off\u003c\/strong\u003e\u003c\/div\u003e\n          \u003cdiv class=\"feature-card\"\u003eThe built-in stand-off keeps the post raised off the concrete to help manage moisture exposure and meet code requirements for structural posts in wet or splash-prone areas.\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\/capacity.svg\" alt=\"capacity\" class=\"aplusicon\"\u003e\n          \u003c\/div\u003e\n          \u003cdiv\u003e\u003cstrong\u003eHigh-Capacity ABU Base\u003c\/strong\u003e\u003c\/div\u003e\n          \u003cdiv class=\"feature-card\"\u003eThis Simpson Strong-Tie adjustable post base is built for serious post-to-concrete connections, with higher uplift performance for wind and earthquake loading in top-supported structures.\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 ABU88Z adjustable post base\u003c\/strong\u003e is a retrofit post base for connecting a nominal 8x8 wood post to existing concrete. This is a \u003cstrong\u003epost base\u003c\/strong\u003e designed for \u003cstrong\u003eattaching wood posts to existing concrete footings in top-supported structures\u003c\/strong\u003e. Model Number: \u003cstrong\u003eABU88Z\u003c\/strong\u003e. If you are building a deck, patio cover, or similar structure and need a clean way to anchor a large post while keeping it off the slab, this is the right kind of hardware.\u003c\/p\u003e\n      \u003cp\u003eWhat makes the ABU88Z matter is adjustability where it actually helps. The slotted anchor hole in the base gives you room to work around the anchor bolt during layout and installation. On paper that sounds small. On the job, it means less fighting misalignment when you're setting a full-size 8x8 post over existing concrete. That can save real time when anchor placement is close but not perfect.\u003c\/p\u003e\n      \u003cp\u003eThe built-in 1 inch stand-off is another feature that does actual work instead of just sounding good in a catalog. By holding the post up off the concrete, the base helps reduce direct moisture exposure at the end grain. Simpson Strong-Tie also notes that this stand-off design meets code requirements for structural posts installed in basements or locations exposed to weather or water splash. For exterior post framing, that gap matters.\u003c\/p\u003e\n      \u003cp\u003eFor capacity, the ABU88Z is intended for high-load applications. Simpson Strong-Tie lists increased uplift loads for earthquake or wind loading, and the load table shows allowable uplift of \u003cstrong\u003e4,120 lb\u003c\/strong\u003e with an allowable download of \u003cstrong\u003e22,405 lb\u003c\/strong\u003e for the ABU88Z configuration. That makes it a serious connector for larger structural posts where load path and hold-down performance are part of the conversation, not an afterthought.\u003c\/p\u003e\n      \u003cp\u003eConstruction is ZMAX coated steel, which is aimed at exterior use and treated-wood applications where better corrosion resistance is needed than standard galvanized finishes. The ABU88Z uses a base gauge of 14 and strap gauge of 12, sized specifically for a nominal 8x8 post. Published dimensions for this model are \u003cstrong\u003e7-1\/2 inches wide, 7 inches long, and 7 inches high\u003c\/strong\u003e. Packaging quantity is one base.\u003c\/p\u003e\n      \u003cp\u003eInstallation details are straightforward but important. Simpson Strong-Tie specifies that all required fasteners must be used. For the ABU88Z, the load table lists \u003cstrong\u003e(18) 0.162 x 3-1\/2 inch nails\u003c\/strong\u003e for fastening the post, and the installation notes also state that Strong-Drive SD Connector screws or bolts may be used as optional fastening methods on the ABU88Z. At the concrete side, the load table shows \u003cstrong\u003e(2) 5\/8 inch anchor diameters\u003c\/strong\u003e. Simpson Strong-Tie also notes that base anchors must extend less than 1 inch from the concrete to avoid interference with the stand-off.\u003c\/p\u003e\n      \u003cp\u003eThis adjustable post base is made for post-to-footing work on decks and similar top-supported structures. It is not recommended for installations where the post is not top supported, such as fences or unbraced carports, because post bases do not provide enough resistance to keep members from rotating about the base. That limitation is worth knowing up front, especially if you are choosing hardware for freestanding or laterally unsupported posts.\u003c\/p\u003e\n      \u003cp\u003eWho should buy it? Contractors and serious DIY builders working with large 8x8 posts on decks, patio covers, and structural exterior framing. If you need a wood-to-concrete retrofit base with stand-off protection, layout forgiveness around the anchor bolt, and real uplift capacity, the Simpson Strong-Tie ABU88Z adjustable post base is a practical choice.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails id=\"product-at-a-glance\" class=\"acc\"\u003e\n    \u003csummary\u003e\u003ch2\u003eAt a Glance\u003c\/h2\u003e\u003c\/summary\u003e\n    \u003cdiv class=\"acc-body\"\u003e\n      \u003cdiv class=\"stats-grid\"\u003e\n        \u003cdiv\u003e\n          \u003cdiv class=\"stat-value\"\u003e8x8\u003c\/div\u003e\n          \u003cdiv class=\"stat-label\"\u003eNominal Post Size\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\n          \u003cdiv class=\"stat-value\"\u003e1 in.\u003c\/div\u003e\n          \u003cdiv class=\"stat-label\"\u003eBuilt-In Stand-Off\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\n          \u003cdiv class=\"stat-value\"\u003e4,120 lb\u003c\/div\u003e\n          \u003cdiv class=\"stat-label\"\u003eAllowable Uplift\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\n          \u003cdiv class=\"stat-value\"\u003e22,405 lb\u003c\/div\u003e\n          \u003cdiv class=\"stat-label\"\u003eAllowable Download\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails id=\"product-benefits\" class=\"acc\"\u003e\n    \u003csummary\u003e\u003ch2\u003eBuilt for Retrofit Post-to-Concrete Work\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\/z8bzpky011\/jpeg\/A_THD-MG_InstPho_RI_Inst_TitenHD-Galvanized-AdjustablePostBase_C0.jpeg?position=c\u0026amp;color=ffffffff\u0026amp;u=cjmyin\" alt=\"Simpson Strong-Tie ABU88Z adjustable post base installed on an existing concrete footing with anchor hardware in an outdoor deck or patio cover setting\" class=\"tnblock-img\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"copy\"\u003e\n          \u003cp\u003eThe ABU88Z is meant for real retrofit conditions, where the concrete is already there and the post location still needs to land where the structure wants it. The slotted base helps with anchor bolt alignment, and the stand-off keeps the wood off the concrete.\u003c\/p\u003e\n          \u003cul\u003e\n            \u003cli\u003eDesigned for attaching wood posts to existing concrete in decks and patio covers\u003c\/li\u003e\n            \u003cli\u003eSlotted base allows adjustment around the anchor bolt for easier post placement\u003c\/li\u003e\n            \u003cli\u003e1 inch stand-off helps protect the post end from moisture exposure\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\u003eNominal Post Size\u003c\/th\u003e\n          \u003ctd\u003e8x8\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eMaterial\u003c\/th\u003e\n          \u003ctd\u003eSteel\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eFinish\u003c\/th\u003e\n          \u003ctd\u003eZMAX galvanized\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBase Gauge\u003c\/th\u003e\n          \u003ctd\u003e14 ga.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eStrap Gauge\u003c\/th\u003e\n          \u003ctd\u003e12 ga.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eWidth\u003c\/th\u003e\n          \u003ctd\u003e7-1\/2 in.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eLength\u003c\/th\u003e\n          \u003ctd\u003e7 in.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eHeight\u003c\/th\u003e\n          \u003ctd\u003e7 in.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eStand-Off\u003c\/th\u003e\n          \u003ctd\u003e1 in.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eAnchor Diameter\u003c\/th\u003e\n          \u003ctd\u003e(2) 5\/8 in.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eRequired Nails\u003c\/th\u003e\n          \u003ctd\u003e(18) 0.162 x 3-1\/2 in.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eAllowable Uplift\u003c\/th\u003e\n          \u003ctd\u003e4,120 lb\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eAllowable Download\u003c\/th\u003e\n          \u003ctd\u003e22,405 lb\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003ePackage Quantity\u003c\/th\u003e\n          \u003ctd\u003e1\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails id=\"product-compatibility\" class=\"acc\"\u003e\n    \u003csummary\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003c\/summary\u003e\n    \u003cdiv class=\"acc-body\"\u003e\n      \u003cdiv class=\"compat-list\"\u003e\n        \u003cdiv class=\"compat-row\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/material.svg\" alt=\"material\" class=\"icon-sm\"\u003e\n          \u003cdiv\u003e\n            \u003cstrong\u003ePost Size\u003c\/strong\u003e\n            \u003cdiv class=\"compat-detail\"\u003eSized for nominal 8x8 wood posts.\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"compat-row\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/size.svg\" alt=\"size\" class=\"icon-sm\"\u003e\n          \u003cdiv\u003e\n            \u003cstrong\u003eConnection Type\u003c\/strong\u003e\n            \u003cdiv class=\"compat-detail\"\u003eDesigned for wood-to-concrete retrofit applications on existing hardened concrete.\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"compat-row\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/drill-bits.svg\" alt=\"drill-bits\" class=\"icon-sm\"\u003e\n          \u003cdiv\u003e\n            \u003cstrong\u003ePost Fasteners\u003c\/strong\u003e\n            \u003cdiv class=\"compat-detail\"\u003eLoad table calls for (18) 0.162 x 3-1\/2 in. nails. Simpson Strong-Tie also lists Strong-Drive SD Connector screws or bolts as optional post fasteners for ABU88Z.\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"compat-row\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/drive-size.svg\" alt=\"drive-size\" class=\"icon-sm\"\u003e\n          \u003cdiv\u003e\n            \u003cstrong\u003eConcrete Anchor Setup\u003c\/strong\u003e\n            \u003cdiv class=\"compat-detail\"\u003eABU88Z uses (2) 5\/8 in. anchor diameters. Simpson Strong-Tie points to retrofit anchor options such as Titen HD, Stainless-Steel Titen HD, and SET-3G adhesive systems.\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\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\"\u003ePatio Covers\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003ePost-to-Footings\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eExterior Framing\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eGeneral Contracting\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eRemodeling\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eDIY \/ Hobbyist\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eTop-Supported Structures\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\"\u003eDry-fit your ABU88Z over the anchor hardware before you stand the post. Simpson Strong-Tie notes the base anchors must extend less than 1 inch from the concrete, or the stand-off can interfere and turn a simple install into a rework job.\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          Lowes lists this product with no warranty.\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 ABU88Z Adjustable Post Base for Big Posts Done Right\u003c\/h3\u003e\n      \u003cp\u003eIf you're anchoring an 8x8 to existing concrete and want adjustability without giving up serious load performance, this is the kind of connector you buy once and install right.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWho it's for:\u003c\/strong\u003e Deck builders, remodelers, and serious DIYers working with nominal 8x8 posts on top-supported structures.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWhy it stands out:\u003c\/strong\u003e The slot around the anchor location makes layout more forgiving, and the 1 inch stand-off solves the moisture issue that beats up post ends over time.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWorth knowing:\u003c\/strong\u003e This is not the connector for freestanding or unbraced posts, and fastener details matter if you want the listed capacity.\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 is the ABU88Z made for?\u003c\/strong\u003e It is sized for a nominal 8x8 wood post.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCan this base be used on existing concrete?\u003c\/strong\u003e Yes. The ABU series is a retrofit post base designed to attach wood posts to existing concrete.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eDoes the ABU88Z hold the post off the concrete?\u003c\/strong\u003e Yes. It has a built-in 1 inch stand-off to help reduce moisture exposure at the end of the post.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIs this a good choice for fences or other unsupported posts?\u003c\/strong\u003e No. Simpson Strong-Tie states that post bases are not recommended for non-top-supported installations because they do not provide adequate resistance to rotation about the base.\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":52999304249638,"sku":"ABU88Z","price":86.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/ABU88Z_00707392301608_Product_Photo_01_1a8a00d7-8ec4-42de-84c3-2e4c9960d2ca.jpg?v=1779135462","url":"https:\/\/www.toolnut.com\/products\/simpson-strong-tie-zmax-galvanized-adjustable-standoff-post-base-for-8x8-abu88z","provider":"Tool Nut","version":"1.0","type":"link"}