{"product_id":"simpson-strong-tie-zmax-galvanized-adjustable-standoff-post-base-for-6x6-rough-abu66rz","title":"Simpson Strong-Tie ZMAX Galvanized Adjustable Standoff Post Base for 6x6 Rough (ABU66RZ)","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\u003eEasier Post Placement\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eThe slotted base hole gives you adjustment around the anchor bolt, which makes it easier to line up a rough 6x6 post without fighting perfect anchor placement.\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\u003eBuilt-In 1 Inch Standoff\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eThat raised-off-concrete design helps keep the end of the post away from standing water and splash, which matters for code compliance and long-term durability.\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\u003eABU66RZ High-Capacity Base\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eThis Simpson Strong-Tie retrofit post base is built for rough 6x6 posts in high-capacity post-to-concrete connections, with strong uplift performance for demanding deck and structural work.\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 ABU66RZ Adjustable Standoff Post Base\u003c\/strong\u003e is a retrofit post base for attaching a rough 6x6 wood post to existing concrete. This is a \u003cstrong\u003epost base designed for securing structural wood posts to concrete footings in high-capacity applications\u003c\/strong\u003e. Model Number: \u003cstrong\u003eABU66RZ\u003c\/strong\u003e. If you are building or repairing a deck, patio cover, pergola, or other top-supported structure and need a connector sized for true rough-cut 6x6 material, this is the right kind of hardware.\u003c\/p\u003e\n    \u003cp\u003eWhat makes the ABU66RZ useful on the job is the slotted anchor hole in the base. Instead of needing the anchor bolt in one exact spot, you get some adjustment room during installation. That saves time when you're working over existing concrete where anchor placement is not always perfect. The built-in 1 inch standoff also keeps the post off the concrete, which helps reduce moisture contact at the end of the post and meets code requirements for structural posts installed in basements or exposed to weather or water splash.\u003c\/p\u003e\n    \u003cp\u003eThis Simpson Strong-Tie ABU66RZ adjustable standoff post base is built from steel with a ZMAX finish for corrosion resistance. For this specific rough 6x6 version, the listed dimensions are 6-1\/16 inches wide, 5 inches long, 5-13\/16 inches high, with a 1-1\/2 inch standoff dimension. That rough-cut sizing matters. This is not just a standard 6x6 base with a different label. It is made to fit rough 6x6 lumber, so it is the better choice when actual post dimensions run larger than surfaced stock.\u003c\/p\u003e\n    \u003cp\u003eLoad numbers are a big part of why someone buys this connector instead of a lighter option. For the ABU66RZ, the published allowable loads include \u003cstrong\u003e2,475 lb uplift\u003c\/strong\u003e, \u003cstrong\u003e2,190 lb download\u003c\/strong\u003e, and \u003cstrong\u003e18,205 lb down load at 100%\u003c\/strong\u003e based on the manufacturer load table shown for DF\/SP. That makes it a solid choice where uplift resistance matters, including areas dealing with wind or seismic demands. It is intended for high-capacity post-to-footing connections, not just light decorative work.\u003c\/p\u003e\n    \u003cp\u003eInstallation flexibility is another strong point. The ABU66RZ can be fastened to the post with either \u003cstrong\u003e(12) 0.162 x 3-1\/2 inch nails\u003c\/strong\u003e or \u003cstrong\u003e(2) 1\/2 inch bolts\u003c\/strong\u003e, and it uses a \u003cstrong\u003e5\/8 inch concrete anchor\u003c\/strong\u003e at the base. Simpson also notes that nails, Strong-Drive SD Connector screws, or bolts may be used depending on the application. If you are already working within the Simpson connector system, that gives you options to match your build method and inspection requirements.\u003c\/p\u003e\n    \u003cp\u003eThere is one limitation worth being clear about: post bases in this series do \u003cstrong\u003enot\u003c\/strong\u003e provide adequate resistance to prevent members from rotating about the base. In plain terms, this connector is meant for top-supported structures where the post is laterally braced by the framing above. It is not the right pick for a free-standing post situation that needs moment resistance at the base, such as an unbraced fence or carport post.\u003c\/p\u003e\n    \u003cp\u003eFor contractors, deck builders, and serious DIYers working with rough-cut 6x6 treated lumber, the ABU66RZ solves a specific fit problem while still giving you the standoff and uplift performance you want in a structural connector. It is especially useful in deck framing and post-to-footing work where actual lumber dimensions do not match standard dressed sizes. If you need a Simpson post base that fits rough material correctly and gives you some forgiveness around the anchor bolt, this is the one to look at.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-benefits\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eBuilt to Fit Rough 6x6 Posts\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 ABU66RZ adjustable standoff post base application example showing an ABU series post base anchored to existing concrete before rough 6x6 post installation on an outdoor jobsite\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eThe whole point of the ABU66RZ is getting a structural post connection onto existing concrete without making the install harder than it needs to be. The slotted base gives you room to work around the anchor bolt, and the standoff keeps the post off the slab.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003eDesigned for \u003cstrong\u003erough 6x6\u003c\/strong\u003e lumber, not standard surfaced 6x6 stock\u003c\/li\u003e\n          \u003cli\u003eBuilt-in \u003cstrong\u003e1 inch standoff\u003c\/strong\u003e helps limit moisture contact at the bottom of the post\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-whats-included\" class=\"acc\" open\u003e\n  \u003csummary\u003e\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"tnincluded-wrapper\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e(1) Simpson Strong-Tie ABU66RZ Adjustable Standoff Post Base for Rough Cut 6x6 Lumber\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"included-note\"\u003e\n      \u003cp\u003ePost fasteners and concrete anchor are not included.\u003c\/p\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\u003eRough 6x6\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\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eWidth (in.)\u003c\/th\u003e\n        \u003ctd\u003e6-1\/16 in.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eLength (in.)\u003c\/th\u003e\n        \u003ctd\u003e5 in.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eHeight (in.)\u003c\/th\u003e\n        \u003ctd\u003e5-13\/16 in.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eStand-Off \/ HB (in.)\u003c\/th\u003e\n        \u003ctd\u003e1-1\/2 in.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eAnchor Diameter (in.)\u003c\/th\u003e\n        \u003ctd\u003e5\/8 in.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003ePost Fasteners\u003c\/th\u003e\n        \u003ctd\u003e(12) 0.162 x 3-1\/2 in. nails or (2) 1\/2 in. bolts\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eAllowable Uplift\u003c\/th\u003e\n        \u003ctd\u003e2,475 lb\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eAllowable Download\u003c\/th\u003e\n        \u003ctd\u003e2,190 lb\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eWeight (lbs)\u003c\/th\u003e\n        \u003ctd\u003e3.8 lb\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        \u003cdiv\u003e\n          \u003cstrong\u003eLumber Fit\u003c\/strong\u003e\n          \u003cdiv class=\"compat-detail\"\u003eSized for \u003cstrong\u003erough 6x6\u003c\/strong\u003e wood posts. Simpson notes actual post dimensions should measure a true 6x6 for proper fit.\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"compat-row\"\u003e\n        \u003cdiv\u003e\n          \u003cstrong\u003eConcrete Anchor\u003c\/strong\u003e\n          \u003cdiv class=\"compat-detail\"\u003eUses a \u003cstrong\u003e5\/8 inch concrete anchor\u003c\/strong\u003e. Simpson lists retrofit anchor options such as Titen HD, Stainless-Steel Titen HD, or SET-3G adhesive systems in the broader ABU installation guidance.\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"compat-row\"\u003e\n        \u003cdiv\u003e\n          \u003cstrong\u003ePost Fasteners\u003c\/strong\u003e\n          \u003cdiv class=\"compat-detail\"\u003eFastens to the post with \u003cstrong\u003e(12) 0.162 x 3-1\/2 inch nails\u003c\/strong\u003e or \u003cstrong\u003e(2) 1\/2 inch bolts\u003c\/strong\u003e. Simpson also states nails, Strong-Drive SD Connector screws, or bolts may be used depending on the application.\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"compat-row\"\u003e\n        \u003cdiv\u003e\n          \u003cstrong\u003eUse Condition\u003c\/strong\u003e\n          \u003cdiv class=\"compat-detail\"\u003eDesigned for \u003cstrong\u003etop-supported structures\u003c\/strong\u003e. Not recommended where the post base alone must resist rotation in an unbraced installation.\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\"\u003ePost-to-Footing Connections\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eOutdoor Structures\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eGeneral Contracting\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eRemodeling\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eRough-Cut Lumber Projects\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eWind and Seismic Regions\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eTop-Supported Structural Posts\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\"\u003eThe adjustment on the ABU66RZ is around the anchor bolt, not the post size. Also keep the base anchor projection under 1 inch above the concrete so it does not interfere with the standoff during installation.\u003c\/p\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\u003eWhy the Simpson Strong-Tie ABU66RZ Adjustable Standoff Post Base Earns Its Spot\u003c\/h3\u003e\n    \u003cp\u003eThis is the one you buy when standard 6x6 hardware is too tight, rough lumber is part of the job, and you still want a real structural post base instead of making something work.\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWho it's for:\u003c\/strong\u003e Deck builders, contractors, and serious DIYers installing rough 6x6 posts on existing concrete for top-supported structures.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhy it stands out:\u003c\/strong\u003e You get rough-cut fit, a built-in 1 inch standoff, and slotted anchor-bolt adjustment in one connector, plus strong published uplift numbers.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWorth knowing:\u003c\/strong\u003e Fasteners and anchor are separate, and like other ABU bases, this one is not meant to stop post rotation by itself in an unbraced setup.\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\u003eIs this post base for standard 6x6 lumber?\u003c\/strong\u003e No. The ABU66RZ is sized for \u003cstrong\u003erough 6x6\u003c\/strong\u003e lumber.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhat size concrete anchor does it use?\u003c\/strong\u003e The published load table lists a \u003cstrong\u003e5\/8 inch anchor diameter\u003c\/strong\u003e.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eCan it be installed with nails or bolts at the post?\u003c\/strong\u003e Yes. The listed post fasteners are \u003cstrong\u003e(12) 0.162 x 3-1\/2 inch nails\u003c\/strong\u003e or \u003cstrong\u003e(2) 1\/2 inch bolts\u003c\/strong\u003e.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eDoes this base prevent the post from rotating on its own?\u003c\/strong\u003e No. Simpson states ABU post bases do not provide adequate resistance to prevent rotation and are not recommended for 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":52999300579622,"sku":"ABU66RZ","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/ABU66RZ_00707392179412_Product_Photo_01_d1db17d3-27b2-49b0-96be-51cbdacb35c5.jpg?v=1779135460","url":"https:\/\/www.toolnut.com\/products\/simpson-strong-tie-zmax-galvanized-adjustable-standoff-post-base-for-6x6-rough-abu66rz","provider":"Tool Nut","version":"1.0","type":"link"}