Strong, stable, and versatile, fir is a trusted choice for a wide range of building and woodworking applications. We offer premium fir lumber and products ideal for structural framing, furniture, doors, trim, and custom projects that call for both durability and natural beauty. Fir features a straight grain, minimal knots, and a warm, reddish-brown hue that finishes beautifully with stain or clear coat. Known for its excellent strength-to-weight ratio and dimensional stability, fir is easy to work with and ideal for both interior and exterior use—especially in Canadian climates where reliability matters. As a proudly Canadian company, Windsor Plywood specializes in hard-to-find wood species and expert advice tailored to your project. Whether you're renovating, building, or crafting something custom, fir offers the dependable performance and classic appeal to bring your vision to life.
Casing is the trim moulding that frames the perimeter of a door or window opening, covering the gap between the frame and the wall finish. It is both functional and decorative, concealing the rough opening and adding a finished, polished transition between the door frame and the wall.
Windsor Plywood stocks casing in traditional ogee and colonial profiles, clean craftsman-style flat profiles, contemporary square-edge options, and various intermediate styles. Available in solid wood species including pine, oak, and hemlock, as well as paint-grade MDF and finger-jointed options.
Standard residential casing runs between 2.25 inches and 3.5 inches wide. The right width depends on the door size, ceiling height, and surrounding trim. Wider doors and taller ceilings support wider casing. For a balanced look, casing width should be visually proportionate to the baseboard height in the same space.
Consistency within a room creates a unified, intentional look. Using matching casing profiles on all doors and windows in a space is standard practice. You can introduce subtle variation between floors or between formal and informal spaces, but mixing profiles within the same room typically looks unfinished.
The terms are often used interchangeably in residential context, both referring to the trim framing a door or window. Architrave is the more formal architectural term, and in some contexts refers specifically to larger, more decorative door surround trim. In practice at Windsor Plywood, both refer to door and window frame moulding.