{"product_id":"mail-boss-7121-heavy-duty-square-mailbox-post-black-steel","title":"Mail Boss 7121 Heavy-duty Square Mailbox Post Black Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe MAIL BOSS 7121 is a heavy-duty in-ground mailbox post constructed from 10-gauge to 14-gauge galvanized steel with a durable black powder-coated finish. Measuring 43 inches tall by 4 inches wide by 4 inches deep, this post is engineered to position a curbside mailbox within USPS-required mounting height specifications of 41 to 45 inches above the roadside surface. The hollow square profile slides over a standard 4x4 wooden post for deep installations or rebar reinforcement, making it a reliable choice for residential mail delivery setups. Four mounting bolts and installation instructions are included. A limited lifetime warranty backs the product.\u003c\/p\u003e\n\u003cp\u003eThe 7121 is suited for residential curbside mailbox installations where a secure, weather-resistant post is required. It is designed for in-ground installation with approximately 12 inches of the post buried below grade to achieve proper mailbox height per USPS guidelines. The ability to sleeve over a 4x4 wooden post or rebar makes it adaptable to varying soil conditions and installation requirements, including areas where additional anchoring is needed for long-term stability.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e10-gauge to 14-gauge galvanized steel construction for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eBlack powder-coated finish for weather durability and clean appearance\u003c\/li\u003e\n  \u003cli\u003ePositions mailbox at USPS-compliant height of 41 to 45 inches above roadside surface\u003c\/li\u003e\n  \u003cli\u003eHollow square profile fits over a standard 4x4 wooden post or rebar for reinforcement\u003c\/li\u003e\n  \u003cli\u003eIncludes 4 mounting bolts and clear installation instructions\u003c\/li\u003e\n  \u003cli\u003eLimited lifetime warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an in-ground mounting post compatible with curbside mailboxes requiring a standard 4-inch square post mount. Fits over a 4x4 wooden post for added reinforcement.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eBury the post approximately 12 inches below grade to achieve the USPS-required mailbox height of 41 to 45 inches above the roadside surface. Dig the post hole to appropriate depth and diameter before setting the post, and allow concrete or compacted fill to fully cure or settle before mounting the mailbox. Power tools or a standard post-hole digger are typically used for excavation. Follow all local codes regarding right-of-way and utility clearance before digging.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: 10-gauge to 14-gauge galvanized steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Black powder coat\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 43 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDepth\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 13.4 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty\u003c\/strong\u003e: Limited lifetime\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 00660753712102\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: MAIL BOSS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 7121\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MAIL BOSS","offers":[{"title":"Default Title","offer_id":51346401394994,"sku":"7121","price":100.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310549639.jpg?v=1782079303","url":"https:\/\/voomisupply.com\/products\/mail-boss-7121-heavy-duty-square-mailbox-post-black-steel","provider":"Voomi Supply","version":"1.0","type":"link"}