{"product_id":"treated-redwood-v-jointed-tongue-groove-cladding-ptgvj-25mm-x-125mm","title":"Treated Redwood V-Jointed T\u0026G Cladding (PTGVJ) 25mm x 125mm","description":"\u003cp\u003eTreated Redwood V-Jointed Tongue and Groove Cladding (PTGVJ) in 25mm x 125mm is a pressure-treated, interlocking timber board machined from Scandinavian redwood and designed for external wall cladding on sheds, garden rooms, and outbuildings. The V-joint profile delivers a clean, defined appearance with a nominal cover of 110mm per board.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eScandinavian redwood (Pinus sylvestris)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTreatment\u003c\/td\u003e\n\u003ctd\u003ePressure treated against rot and insect attack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eSmooth planed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProfile\u003c\/td\u003e\n\u003ctd\u003eV-jointed tongue and groove (PTGVJ)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e25mm x 125mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEffective Cover\u003c\/td\u003e\n\u003ctd\u003eApproximately 110mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLengths Available\u003c\/td\u003e\n\u003ctd\u003e4.2m, 4.5m, 4.8m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUse Class\u003c\/td\u003e\n\u003ctd\u003eExternal (above ground)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eWhat it's used for\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eExternal wall cladding on timber-framed garden rooms and summerhouses\u003c\/li\u003e\n\u003cli\u003eShed and outbuilding cladding where a neat, defined finish is required\u003c\/li\u003e\n\u003cli\u003eReplacement or repair cladding on existing structures where boards have deteriorated\u003c\/li\u003e\n\u003cli\u003eFeature wall cladding on porches, canopies, and covered outdoor structures\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitting and handling\u003c\/h2\u003e\u003cp\u003eBefore fixing, stack boards off the ground in a covered, ventilated space and allow at least 48 hours for them to acclimatise to site conditions, particularly in colder or wetter weather. Fix through the tongue at an angle using stainless steel or hot-dipped galvanised nails or screws to avoid staining and to allow for natural timber movement. Although the boards arrive pressure treated, exposed cut ends should be re-treated with a suitable end-grain preservative, and a top coat of paint, stain, or exterior wood preservative will extend the service life of the cladding.\u003c\/p\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between PTGVJ cladding and standard tongue and groove?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePTGVJ stands for Planed, Tongue and Groove, V-Jointed. The V-joint is a small chamfer machined onto the face edges of each board, so that when boards are fitted together the joint line is visible as a neat V-shaped groove. Standard tongue and groove cladding may have a flat or beaded joint. The V-joint profile is a popular choice where a traditional, defined finish is preferred.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes pressure-treated cladding still need painting or staining?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePressure treatment protects the timber against rot and insect attack from within the wood, but it does not seal the surface against moisture or UV exposure. Applying an exterior stain, paint, or preservative top coat is recommended to maintain the appearance of the boards and extend their working life, particularly on south- or west-facing elevations that receive direct sun and rain.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size fixings should I use for 25mm x 125mm tongue and groove cladding?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eFor 25mm x 125mm T\u0026amp;G cladding, 50mm to 65mm stainless steel ring-shank nails or screws are typically suitable, fixed through the tongue at roughly 45 degrees into the underlying framework. Stainless steel or hot-dipped galvanised fixings are strongly recommended for external use to prevent rust staining on the face of the boards over time.\u003c\/p\u003e\u003cp\u003eNottage Timber Merchants supply treated tongue and groove cladding from our yard in Bridgend, South Wales, with competitive trade pricing available. Browse our full range of \u003ca href=\"\/collections\/feather-edge-boards\"\u003efeather edge boards and external claddings\u003c\/a\u003e for more options, and contact us for availability and next-day delivery across the South Wales area.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the difference between PTGVJ cladding and standard tongue and groove?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"PTGVJ stands for Planed, Tongue and Groove, V-Jointed. The V-joint is a small chamfer machined onto the face edges of each board, so that when boards are fitted together the joint line is visible as a neat V-shaped groove. Standard tongue and groove cladding may have a flat or beaded joint. The V-joint profile is a popular choice where a traditional, defined finish is preferred.\"}}, {\"@type\": \"Question\", \"name\": \"Does pressure-treated cladding still need painting or staining?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Pressure treatment protects the timber against rot and insect attack from within the wood, but it does not seal the surface against moisture or UV exposure. Applying an exterior stain, paint, or preservative top coat is recommended to maintain the appearance of the boards and extend their working life, particularly on south- or west-facing elevations that receive direct sun and rain.\"}}, {\"@type\": \"Question\", \"name\": \"What size fixings should I use for 25mm x 125mm tongue and groove cladding?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"For 25mm x 125mm T\u0026G cladding, 50mm to 65mm stainless steel ring-shank nails or screws are typically suitable, fixed through the tongue at roughly 45 degrees into the underlying framework. Stainless steel or hot-dipped galvanised fixings are strongly recommended for external use to prevent rust staining on the face of the boards over time.\"}}]}\u003c\/script\u003e","brand":"Nottage Timber Merchants","offers":[{"title":"4.8m \/ 4800mm \/ 16ft","offer_id":52565660107089,"sku":"PTGVTRT2512548","price":11.68,"currency_code":"GBP","in_stock":false},{"title":"4.5m \/ 4500mm \/15ft","offer_id":52565660172625,"sku":"PTGVTRT2512545","price":11.14,"currency_code":"GBP","in_stock":false},{"title":"4.2m \/ 4200mm \/ 14ft","offer_id":52565660205393,"sku":"PTGVTRT2512542","price":10.36,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/1467\/1697\/files\/25mm-x-125mm-V-Jointed-Tongue-Groove-PTGVJ-Treated-Redwood-Cladding-Nottage-Timber-Merchants_1020__49154.1723552942.1280.1280.jpg?v=1765210160","url":"https:\/\/www.timberonline.co.uk\/products\/treated-redwood-v-jointed-tongue-groove-cladding-ptgvj-25mm-x-125mm","provider":"Nottage Timber Merchants","version":"1.0","type":"link"}