Steel Entry Doors

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      Innovative, durable, and design-forward, Masonite is a global leader in interior and exterior doors that blend performance with style. Available at Windsor Plywood, Masonite doors are crafted to meet the needs of homeowners, builders, and designers looking for high-quality, reliable solutions that enhance both function and curb appeal. From solid core and hollow core interior doors to fibreglass and steel exterior doors, Masonite offers a wide range of products in classic and contemporary styles. Known for their durability, energy efficiency, and sound reduction, Masonite doors are designed to stand up to daily life while adding beauty and value to your home. As a proudly Canadian retailer, Windsor Plywood is pleased to offer Masonite's trusted line of doors, backed by expert advice and personalized service. Whether you're building new or upgrading your space, Masonite provides the perfect blend of form and function to suit any design vision.

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      Frequently Asked Questions

      What steel door products does Windsor Plywood carry?
      Windsor Plywood carries steel exterior entry doors from brands including Masonite and Jeld-Wen. Steel doors are available in flush and embossed panel profiles with factory primer or paint finishes. Most steel door systems include a polyurethane foam core for insulation and are available in pre-hung configurations with adjustable door frames suited to Canadian wall thicknesses.
      What are the advantages of steel exterior doors?
      Steel exterior doors provide good security, resist warping and swelling through humidity changes, are cost-effective compared to fiberglass and wood, and accept paint well. They are the standard entry door in most production residential construction. Modern steel doors with polyurethane foam cores provide significantly better insulation than older hollow steel doors, though they are still inferior to fiberglass in thermal performance.
      Do steel doors rust in Canadian climates?
      Steel doors are galvanized or coated to resist rust. When properly painted and maintained, steel doors provide decades of service in Canadian conditions. Scratches and chips in the paint and primer should be touched up promptly to prevent moisture from reaching the steel beneath. Coastal locations with salt air exposure are harder on steel doors than inland locations.
      Can steel doors be painted?
      Yes. Steel doors accept exterior latex paint well. The factory prime coat should be lightly sanded before painting. Use a quality exterior latex paint in a satin, semi-gloss, or gloss sheen that resists moisture and is easy to clean. Dark paint colours on south or west-facing steel doors can cause significant heat buildup that may affect weatherstripping performance and door frame alignment over time.
      How do steel doors compare to fiberglass for energy efficiency?
      Fiberglass doors consistently outperform steel doors in thermal performance due to fiberglass's lower thermal conductivity. Steel conducts heat readily, which creates a thermal bridge through the door that is more difficult to manage than in fiberglass construction. High-quality steel doors with insulated cores and thermally broken frames reduce this gap, but fiberglass remains the better thermal performer at comparable price points.