{"product_id":"durapost-prima-reinforcement-rods","title":"DuraPost PRIMA Reinforcement Rods – 1.825m \u0026 2.398m","description":"\u003cp\u003e\u003cstrong\u003eDuraPost PRIMA reinforcement rods slide inside PRIMA composite boards to stiffen the board where the installation requires additional structural support.\u003c\/strong\u003e They are not a decorative accessory: the number required depends on whether PRIMA is being used as a gravel board or stacked into a complete fence.\u003c\/p\u003e\n\n\u003ch2\u003eWhen do I need a reinforcement rod?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePRIMA stacked as a full fence:\u003c\/strong\u003e Birkdale specifies a reinforcement rod in \u003cstrong\u003eevery third board\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePRIMA used as a gravel board retaining earth:\u003c\/strong\u003e use \u003cstrong\u003eone reinforcement rod in every board\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor a typical stacked full-height panel, Birkdale's installation sequence describes reinforcing the first, middle and top boards.\u003c\/p\u003e\n\n\u003ch2\u003eWhich rod length do I need?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1825mm rod:\u003c\/strong\u003e for the approximately 1.83m PRIMA board\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2398mm rod:\u003c\/strong\u003e for the approximately 2.4m PRIMA board\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMatch the rod length to the PRIMA board being installed rather than cutting a shorter rod into a longer board.\u003c\/p\u003e\n\n\u003ch2\u003eHow is the rod fitted?\u003c\/h2\u003e\n\u003cp\u003eThe galvanised steel rod slides inside the hollow PRIMA board before the board is placed into the fence. Once reinforced, the board is installed between the posts in the normal PRIMA tongue-and-groove stack.\u003c\/p\u003e\n\n\u003ch2\u003eWhy is reinforcement important?\u003c\/h2\u003e\n\u003cp\u003eThe rod increases rigidity across the span. This is particularly important where the boards are stacked to full fence height or where a gravel board is resisting pressure from retained soil.\u003c\/p\u003e\n\u003cp\u003eBirkdale states that reinforcing each 1.8m PRIMA gravel board when retaining earth increases the stated load capacity to \u003cstrong\u003e1.5kN per board\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eWhat else do I need?\u003c\/h2\u003e\n\u003cp\u003eFor a stacked PRIMA fence, combine the rods with \u003ca href=\"\/products\/durapost-prima-composite-fence-boards\"\u003e\u003cstrong\u003ePRIMA composite boards\u003c\/strong\u003e\u003c\/a\u003e, suitable posts and the chosen capping\/finishing components. For a single gravel-board application, make sure the supporting posts and the fence above are compatible with the selected PRIMA board length.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation manual\u003c\/h2\u003e\n\u003cp\u003eUse the \u003ca href=\"https:\/\/products.birkdalesales.com\/product\/attachment\/B806183G\/Prima-Boards_TDS_%26_Instructions_2025.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eofficial DuraPost PRIMA technical sheet and installation guide\u003c\/strong\u003e\u003c\/a\u003e.\u003c\/p\u003e","brand":"DuraPost","offers":[{"title":"1825mm","offer_id":57344588054852,"sku":"B8061101","price":14.6,"currency_code":"GBP","in_stock":true},{"title":"2398mm","offer_id":57344588087620,"sku":"B8061111","price":20.48,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0773\/7068\/7812\/files\/durapost-prima-reinforcement-rod.jpg?v=1790697221","url":"https:\/\/www.wern-wood.com\/products\/durapost-prima-reinforcement-rods","provider":"Wern-Wood","version":"1.0","type":"link"}