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Smooth, stable, and highly versatile, MDF (Medium Density Fibreboard) is a go-to engineered wood product for a wide range of interior building and design projects. We carry high-quality MDF panels and mouldings ideal for cabinetry, shelving, furniture, wall panelling, and detailed trim work. Made from finely ground wood fibres bonded under heat and pressure, MDF offers a uniform surface that’s perfect for painting, veneering, or laminating. It machines cleanly without splintering, holds edges well, and is ideal for precision cutting, making it especially popular for decorative mouldings and custom millwork. As a proudly Canadian company, Windsor Plywood provides trusted building materials and expert advice to help you complete projects with confidence. Whether you're crafting a built-in unit or upgrading interior details, MDF delivers reliable performance and a smooth, professional finish every time.
Frequently Asked Questions
What crown moulding does Windsor Plywood carry?
Windsor Plywood carries crown moulding in a range of profiles from 2-1/2 inch to 4-1/2 inch widths in pine, finger-jointed pine, poplar, and paint-grade MDF from Alexandria Moulding and Metrie. Both spring-angle and flat-backed profiles are available, in pre-primed and unprimed options.
What is the spring angle of crown moulding and why does it matter?
The spring angle is the angle at which the crown moulding sits against the wall and ceiling surfaces. Standard residential crown moulding springs at 38 or 52 degrees. The spring angle determines the cutting angles required on a mitre saw to make inside and outside corner cuts. Different spring angles require different saw settings. Identify the spring angle of your crown moulding before setting up your saw to cut corners.
How do I cut crown moulding corners on a mitre saw?
For crown moulding corners, two methods are used. The compound cut method cuts the moulding flat on the saw table at a combination of blade tilt and mitre angle calculated for the spring angle. The nested method positions the moulding against the fence of the mitre saw at its spring angle (with fence acting as the ceiling and table as the wall) and cuts standard 45-degree mitres. The nested method is simpler for most DIY applications.
What size crown moulding is appropriate for standard ceiling heights?
For standard 8-foot ceilings, 3 to 3-1/2 inch crown is proportionally appropriate. For 9-foot ceilings, 4-inch crown looks better. For 10-foot and taller ceilings, 4-1/2 inch to 6-inch crown with a built-up cornice assembly provides the visual weight appropriate for the space. Undersized crown on tall ceilings looks inadequate; oversized crown on low ceilings feels oppressive.
What is a built-up crown moulding and when is it used?
A built-up crown assembly combines multiple individual moulding profiles — typically a cove or crown piece, a flat frieze band, and a cap moulding — to create a larger, more architecturally significant cornice. Built-up assemblies are used in formal spaces and high-ceiling rooms where a single piece of crown would look undersized. They can be created from standard stock profiles available at Windsor Plywood.