{"product_id":"treated-softwood-decking-boards","title":"Grooved \u0026 Reeded Treated Softwood Decking Boards","description":"\u003cp\u003e\u003cstrong\u003eQuick answer:\u003c\/strong\u003e Treated softwood decking boards are pressure treated timber boards used for garden decking, patios, seating areas and outdoor living spaces. These boards have a grooved and reeded profile, with a nominal size of 125mm x 32mm and a finished profile of approximately 120mm x 28mm.\u003c\/p\u003e\n\n\u003ch2\u003eWhat is this used for?\u003c\/h2\u003e\n\u003cp\u003eThese treated softwood decking boards are used to create outdoor decked areas for gardens, patios, seating areas, sheds, summerhouses and other outdoor living spaces. They can also be used as replacement boards for existing timber decking where the size and profile are suitable.\u003c\/p\u003e\n\n\u003cp\u003eThe boards are kiln dried and pressure treated for exterior use, making them a practical choice for domestic and trade decking projects where a clean, traditional timber deck finish is wanted.\u003c\/p\u003e\n\n\u003ch2\u003eIs this the right decking board for your project?\u003c\/h2\u003e\n\u003cp\u003eChoose treated softwood decking boards if you want a cost-effective timber decking surface for a garden, patio, seating area or outdoor walkway. They are a good option where you want real timber, easy cutting, straightforward fixing and a traditional outdoor deck appearance.\u003c\/p\u003e\n\n\u003cp\u003eThese boards are for the deck surface only. A good deck also needs a suitable subframe, correct joist spacing, adequate support, drainage, ventilation and the right fixings. If you are planning a new deck, use the \u003ca href=\"\/pages\/decking-joist-calculator\"\u003eDecking Joist Calculator\u003c\/a\u003e before ordering your frame materials.\u003c\/p\u003e\n\n\u003ch2\u003eWhat size are these decking boards?\u003c\/h2\u003e\n\u003cp\u003eThese boards are sold as 125mm x 32mm decking boards. After machining, the finished profile is approximately 120mm x 28mm.\u003c\/p\u003e\n\n\u003cp\u003eAvailable lengths include 2.4m, 3.6m, 3.9m, 4.2m and 4.8m. Choose the length that gives the best layout with the fewest joins, cuts and wasted offcuts.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSize note:\u003c\/strong\u003e Imperial sizes are provided as a familiar reference only. All timber is sold in metric measurements, so please use the listed metric size when ordering or checking suitability for your project.\u003c\/p\u003e\n\n\u003ch2\u003eGrooved and reeded decking profile\u003c\/h2\u003e\n\u003cp\u003eThese decking boards are supplied with a grooved and reeded profile, giving a traditional timber decking appearance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eProfile note:\u003c\/strong\u003e Decking board profiles may change at short notice depending on supplier availability and machining specification. Images and descriptions are provided as a guide only, and the exact profile supplied may vary slightly.\u003c\/p\u003e\n\n\u003ch2\u003eHow many boards do you need?\u003c\/h2\u003e\n\u003cp\u003eThe number of boards depends on the deck size, board direction, board spacing, wastage and whether you are using any picture-frame borders or angled layouts.\u003c\/p\u003e\n\n\u003cp\u003eAs a simple starting point, allow for the finished board width, spacing between boards and a sensible waste allowance. More decorative layouts usually need more boards and more careful cutting than a straight board layout.\u003c\/p\u003e\n\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePressure treated softwood:\u003c\/strong\u003e Treated for exterior decking and outdoor timber use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKiln dried:\u003c\/strong\u003e Helps reduce movement during installation compared with wetter timber.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrooved and reeded profile:\u003c\/strong\u003e Traditional decking board profile suitable for common garden decking projects.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinished profile:\u003c\/strong\u003e Sold as 125mm x 32mm, with an approximate finished size of 120mm x 28mm.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMultiple lengths available:\u003c\/strong\u003e Choose from 2.4m, 3.6m, 3.9m, 4.2m and 4.8m lengths.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy to cut and fix:\u003c\/strong\u003e Suitable for standard woodworking tools and exterior-grade decking fixings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eThings to check before ordering\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDeck size:\u003c\/strong\u003e Measure the finished deck area carefully before calculating board quantities.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinished board size:\u003c\/strong\u003e These boards finish at approximately 120mm x 28mm after machining.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBoard length:\u003c\/strong\u003e Choose lengths that suit your deck layout and reduce unnecessary joins where possible.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProfile:\u003c\/strong\u003e Decking profiles may vary slightly depending on current supplier stock and machining specification.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSubframe:\u003c\/strong\u003e Make sure your joists, supports and posts are suitable for the deck size, height and loading.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eJoist spacing:\u003c\/strong\u003e Use the \u003ca href=\"\/pages\/decking-joist-calculator\"\u003eDecking Joist Calculator\u003c\/a\u003e to help plan joist centres and support layout for common domestic decking frames.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpacing between boards:\u003c\/strong\u003e Allow appropriate gaps between boards for drainage and normal timber movement.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVentilation:\u003c\/strong\u003e Decking should be installed with adequate airflow beneath the boards.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFixings:\u003c\/strong\u003e Use suitable \u003ca href=\"\/collections\/decking-screws\"\u003edecking screws\u003c\/a\u003e or exterior-grade decking fixings.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCut ends:\u003c\/strong\u003e Re-treat freshly cut ends where possible after cutting.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaintenance:\u003c\/strong\u003e Timber decking will weather outdoors and should be cleaned and maintained as needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eComplete the job\u003c\/h2\u003e\n\u003cp\u003eFor a full deck build, you may also need suitable deck joists, support posts, weed membrane, exterior-grade \u003ca href=\"\/collections\/decking-screws\"\u003edecking screws\u003c\/a\u003e and other subframe materials. Use the \u003ca href=\"\/pages\/decking-joist-calculator\"\u003eDecking Joist Calculator\u003c\/a\u003e to help plan joist centres, support layout and timber quantities for common domestic decking frames.\u003c\/p\u003e\n\n\u003cp\u003eTo compare related decking products, view the full \u003ca href=\"\/collections\/decking-boards\"\u003eDecking Boards\u003c\/a\u003e collection. For wider outdoor timber projects, browse \u003ca href=\"\/collections\/fencing-decking-landscaping\"\u003eFencing, Decking \u0026amp; Landscaping\u003c\/a\u003e.\u003c\/p\u003e\n","brand":"Wern-wood","offers":[{"title":"125 × 32mm x 2.4m","offer_id":56442038944068,"sku":null,"price":6.36,"currency_code":"GBP","in_stock":true},{"title":"125 × 32mm x 3.0m","offer_id":56795389100356,"sku":null,"price":8.48,"currency_code":"GBP","in_stock":true},{"title":"125 × 32mm × 3.6m","offer_id":47146296213828,"sku":"","price":9.54,"currency_code":"GBP","in_stock":true},{"title":"125 × 32mm × 3.9m","offer_id":47146296246596,"sku":"","price":10.34,"currency_code":"GBP","in_stock":false},{"title":"125 × 32mm × 4.2m","offer_id":56430545240388,"sku":null,"price":11.13,"currency_code":"GBP","in_stock":true},{"title":"125 × 32mm × 4.8m","offer_id":54551906353476,"sku":"","price":12.72,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0773\/7068\/7812\/files\/rn-image_picker_lib_temp_5980900d-af08-41f3-96ca-46b087e72cb1.webp?v=1780071806","url":"https:\/\/www.wern-wood.com\/products\/treated-softwood-decking-boards","provider":"Wern-wood","version":"1.0","type":"link"}