OSB

OSB board is a versatile engineered wood panel that has become a staple material for construction, roofing, and general building work across Ireland. Made from compressed wood strands bonded with resin, these panels offer excellent structural strength at a competitive price point, making them ideal for sheathing, flooring underlayment, and hoarding applications on sites of all sizes.

Our OSB Range

McMahons stocks oriented strand board in various grades and thicknesses to suit different project requirements:

• OSB/3 panels: moisture-resistant grade suitable for load-bearing applications in humid conditions, perfect for roofing and external wall sheathing
• Tongue and groove options: featuring interlocking edges for seamless flooring installations without additional noggins
• Various thicknesses: from 9mm for light-duty applications through to 22mm for heavy-duty flooring and structural work
• FSC certified stock: sustainably sourced panels meeting environmental standards for responsible construction projects

For projects requiring different panel characteristics, browse our complete Sheet Material collection, which includes Plywood and MDF Sheets for finishing work.

Selecting the right grade depends on your application environment. OSB/3 is essential for any area exposed to moisture or humidity, while OSB/2 works perfectly for internal dry conditions. Consider thickness based on span requirements: check manufacturer guidelines for joist spacing recommendations.

Why Choose McMahons for Your Sheet Materials?

With nearly two centuries serving Irish builders, our team understands exactly which panel suits your specific application. Our branch staff can advise on load ratings, moisture resistance, and optimal thickness for your project, ensuring you leave with the right material first time. Ready to stock up? Find your nearest McMahons branch for expert guidance and competitive trade pricing.