Use plywood or a structural OSB grade where the design needs load-bearing capacity, MDF for smooth interior joinery, chipboard flooring for supported floor decks, hardboard for thin dry-area backing, and a specified tile backer board behind tiles. Confirm grade, thickness and moisture class for the exact application.
Wood-Based Boards for Joinery, Floors and Sheathing
MacBlair stocks sheet materials for structural work, joinery, flooring, lining and tile preparation. The range includes plywood, MDF, OSB, tongue-and-groove chipboard flooring, tile backer boards and hardboard. Each board behaves differently around load, moisture, fixings and finishing, so choose by application and declared grade rather than appearance alone.
Plywood and OSB cover many construction tasks, while MDF provides a smooth face for painted interior joinery. Chipboard flooring is profiled for supported floor decks, hardboard suits thin dry-area linings and backing, and tile backer board creates a stable tiling substrate where the specified system is followed. Compare the wider building materials range while planning the assembly.
Store boards flat, dry and supported, then allow for conditioning where the manufacturer requires it. Match thickness and grade to joist or stud spacing and loads. Structural timber and framing materials provide the supporting framework, while insulation products for walls, roofs and floors should fit the same build-up without obstructing ventilation or moisture control.
Sheet FAQ's
Thickness depends on loads, support spacing, edge support and the board’s declared structural properties. Follow the project design or manufacturer span table rather than choosing by handling stiffness alone.
Only grades declared for humid conditions should be used where occasional moisture is expected, and moisture resistant does not mean waterproof. Wet zones need the complete specified board, joint and waterproofing system.
Store sheets flat on level bearers, fully supported and protected from rain and ground moisture. Condition them in the installation environment when the manufacturer calls for it, while maintaining airflow around the stack.
Support the sheet, use a sharp blade suited to the material and control dust at source. Wear eye protection and suitable respiratory protection, and follow the board safety data because fine MDF and wood dust should not be inhaled.