Tongue & Groove Untreated Cladding Our 120mm x 12mm tongue and groove boards are a versatile and reliable solution for a wide range of interior and general building projects. Cut with precision-profiled edges, this tongue and groove cladding fits together securely, creating a strong, seamless finish that looks clean and professional once installed. Each board features an 110mm effective coverage and a smooth, planed finish, making it ideal for projects where both appearance and performance matter. The tongue and groove design helps to minimise movement, improve alignment, and deliver a robust fixing compared to square-edged boards. Supplied untreated, this tongue and groove cladding allows full flexibility in how you finish your project. You can paint, stain, oil, or apply preservatives to suit your design preferences and the environment in which it will be used. This makes it especially popular for interior wall and ceiling cladding, feature walls, sheds, garden rooms, workshops, and general joinery or DIY applications. Key Features of Tongue and Groove Cladding Tongue and groove for strong, secure fitting 120mm x 12mm 110mm effective coverage per board Smooth planed surface Perfect for Interior cladding, sheds, garden rooms, workshops, and general building projects Suitable for painting, staining, or treating with preservatives Please note: Timber is a natural product. Finish, colour and sizes may vary from illustration and description. While every care is taken to provide you the best material, with it being natural it can move, split, warp, twist, swell and shrink.
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