{"product_id":"roblock-trailer-jack-blocks-6-stackable-4-pack-11-5-base-heavy-duty-uv-polymer-stabilizer","title":"ROBLOCK Trailer Jack Blocks 6\" Stackable 4-Pack — 11.5\" Base, Heavy-Duty UV Polymer Stabilizer","description":"\u003cp\u003e\u003cstrong\u003eThese ROBLOCK 6\" stackable trailer jack blocks (4 per set) stabilize and level RVs, travel trailers, fifth-wheels and scissor or round jacks quickly and securely.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned from a high-performance polymer with UV-resistant additives, this 4-piece set gives a compact, durable solution for reducing sway and movement when your RV is parked. Each block supports heavy loads and stacks to achieve extra height, while a included rope-and-bag system keeps the set organized for transport. The footprint and shape fit most tongue jack feet, round 5th wheel hydraulic feet, scissor stabilizers and square posts.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these blocks reduce RV wobble and movement?\u003c\/h3\u003e\n\u003cp\u003eThe ROBLOCK blocks create a wider, more stable base that prevents jack feet from sinking into soft ground or shifting on gravel. When stacked and positioned correctly they lock the jack in place and transfer load across a larger surface area to minimize rocking.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid polymer construction disperses weight evenly\u003c\/li\u003e\n  \u003cli\u003eLarge 11.5\" x 11.5\" base resists sinking on soft surfaces\u003c\/li\u003e\n  \u003cli\u003eStackable design lets you build height and stability as needed\u003c\/li\u003e\n  \u003cli\u003eCompatible with round, square, scissor and hydraulic jack feet\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow much weight can each block handle and what are the dimensions?\u003c\/h3\u003e\n\u003cp\u003eEach block is engineered to withstand heavy loads suitable for typical RV applications without deforming under stress. The physical footprint and stackable 6\" height make them convenient for leveling while providing a reliable support surface.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRated capacity per block: G.V.W. 40,000 lbs (designed for heavy-duty support scenarios)\u003c\/li\u003e\n  \u003cli\u003eIndividual block height: about 6 inches\u003c\/li\u003e\n  \u003cli\u003eTop and bottom dimensions: approximately 11.5\" by 11.5\"\u003c\/li\u003e\n  \u003cli\u003eFour-block set allows multiple stacking height combinations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow portable and user-friendly are the blocks for travel and storage?\u003c\/h3\u003e\n\u003cp\u003eThe set includes a storage bag and a carrying rope, simplifying transport and keeping the blocks tidy in your garage or cargo area. A side hole in each block pairs with the rope for quick lifting, and the lightweight polymer construction makes handling straightforward for one person.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes drawstring storage bag to protect blocks and save space\u003c\/li\u003e\n  \u003cli\u003eIntegrated side hole for rope carry or tethering to trailer\u003c\/li\u003e\n  \u003cli\u003eStacking edges align for secure placement and simple uninstall\u003c\/li\u003e\n  \u003cli\u003ePolymer resists dirt, oil and UV degradation for long-term use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these work with my trailer's specific jack or stabilizer?\u003c\/h3\u003e\n\u003cp\u003eROBLOCK blocks are shaped and sized to accommodate most common jack foot styles, from tongue jacks to fifth-wheel hydraulic feet and scissor stabilizers. Their broad surface and open-fit top let you center many different foot types; for unusual or oversized feet, measure the contact area to confirm fit.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with 9\" round 5th wheel hydraulic jack feet and standard tongue jacks\u003c\/li\u003e\n  \u003cli\u003eWorks with square and round posts, scissor stabilizers, and many aftermarket feet\u003c\/li\u003e\n  \u003cli\u003eBroad top plate reduces pressure points under small jack feet\u003c\/li\u003e\n  \u003cli\u003eStacking lets you adapt to uneven terrain or taller jack requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The ROBLOCK 6\" 4-piece trailer jack block set is intended for RV owners, weekend campers, and professional haulers who need a compact, durable way to stabilize and level trailers on a variety of surfaces. It suits anyone who wants an easy-to-carry stabilizing solution that fits most jack feet and fifth-wheel hydraulic systems without bulky metal plates.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can these blocks handle heavy fifth-wheel jacks?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Each block is rated for heavy loads and the wide 11.5\" base and stackable design support most fifth-wheel and hydraulic jack feet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are the blocks weather-resistant for long-term outdoor use?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Made from a high-performance polymer with anti-UV additives to resist sun damage, dirt and oil over time.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"ROBLOCK","offers":[{"title":"Default Title","offer_id":48082744934558,"sku":"B0DRHZ8ZJW","price":112.09,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/roblock-front-packaging-with-bag.jpg?v=1785812884","url":"https:\/\/northtrailauto.ca\/products\/roblock-trailer-jack-blocks-6-stackable-4-pack-11-5-base-heavy-duty-uv-polymer-stabilizer","provider":"North Trail Auto","version":"1.0","type":"link"}