Treated Timber Decking Board 27mm x 145mm – 4.8m

Treated Timber Decking Board 27mm x 145mm – 4.8m is a premium pressure-treated softwood decking board, precision-machined to a 27mm × 145mm finished profile and supplied in a full 4.8m length. Designed for trade professionals and serious DIY builders alike, it delivers the rot resistance, structural stability, and clean finish needed for long-lasting outdoor decking projects. The 4.8m length minimises the need for mid-span joins, producing a neater, stronger deck surface.

Key Features and Specifications

• Finished size: 27mm (thickness) × 145mm (width) × 4,800mm (length)
• Nominal/sawn size: 32mm × 150mm (ex-mill)
• Material: European slow-grown softwood (Redwood Pine / Pinus sylvestris)
• Treatment: Pressure-treated to Use Class 3 (UC3) — suitable for above-ground exterior use
• Profile: Reversible — grooved anti-slip face and smooth face
• Grooves: Machined channels aid water dispersal and reduce slip risk in wet conditions
• Sustainably sourced: European certified softwood from responsibly managed forests
• Supplier: MDM Timber Limited — established UK timber importer and distributor
• Category: Fencing & Decking

Applications

• Garden decking and raised outdoor platforms
• Patio decking and outdoor entertaining areas
• Decked pathways, steps, and garden walkways
• Commercial outdoor dining areas, pub gardens, and café terraces
• Landscaping projects requiring durable, weather-resistant timber boards
• Replacement boards for existing 145mm-wide deck installations

Why Choose This Product

At 27mm thick and 145mm wide, this board offers an extra-wide coverage per run, reducing the number of boards — and fixings — needed per square metre. The reversible grooved/smooth profile gives you flexibility over the finished look. Pressure treatment to UC3 means the timber is protected against rot, fungal decay, and insect attack for above-ground outdoor use, extending service life significantly compared with untreated softwood. Supplied by MDM Timber Limited, a trusted UK trade timber importer with over 35 years of industry experience.

Delivery in and Around London

We deliver treated timber decking boards to customers across London, including inner boroughs such as Croydon, Lewisham, Southwark, Camden, and Hackney, as well as Greater London areas including Enfield, Bexley, Redbridge, and Barnet. We also supply regularly into the surrounding counties of Kent, Essex, Surrey, and Hertfordshire. Trade quantities and full-pack orders are welcome — contact us to discuss volume pricing and scheduled delivery options.