Wood Products

High-quality and specialty wood products for all your projects, including Lumber & Plywood, MDF, Tongue and Groove, Shiplap, Wallboard, Dressed 4-Side (D4S) kiln-dried dimensional boards, 4 Square Edges Board (S4S) and Specialty Lumber. We have many items in stock, and for special requests, we can source them promptly.

Stacked wooden planks or boards arranged in a pile, with a warm light glow on the left side.
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Mariposa Millwork logo with circular design, includes text 'EST. 2024,' 'Mariposa Millwork,' and 'Simcoe & Muskoka's Door & Trim Company' in a vintage style.

New Products

Four pieces of beige MDF or particle board stacked at an angle with the dark green background visible in the bottom right corner.

Exterior MDF

Exterior or water-resistant MDF is designed to resist moisture, ideal for humid areas like exterior cladding, kitchens, and bathrooms. It's treated with special resins to prevent swelling, warping, and damage.

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Three white wooden L-shaped molding pieces stacked on top of each other, with a dark green background.

S4S - Primed Finger Joint Pine

S4S finger joint primed pine boards offer quality, strength, and stability from sustainable pine. Smooth, primed surfaces ensure easy finishing and durability. Ideal for trim, mouldings, cabinetry, and millwork with consistent grain and size

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  • A selection of different wooden and laminate flooring samples arranged in overlapping layers on a dark green background.

    Specialty Plywood

    We have access to an inventory of premium and specialty plywoods. Choose from Birch, Spruce,  Walnut and more in a selection of sizes and thicknesses.

  • Close-up of a light-colored wooden board with a visible knot, placed against a dark green background.

    4 Square Board (S4S)

    We offer a range of S4S boards in different sizes and materials, including Primed MDF, Primed Finger Joint Pine, Natural Oak and Poplar.

  • A close-up of a wooden stick or strip against a dark green background.

    Dressed 4 Sides (D4S) Boards

    We offer a range of D4S boards in a variety of sizes and materials, including Raw Oak, Raw Poplar, Walnut, White Pine and more.

  • A modern hallway with white shiplap walls, a staircase with white risers and dark wood treads, two decorative black sunburst mirrors on the wall, a black bench with a striped pillow, a beige bag on the floor, a scarf draped over a hat on the bench, and a large potted fiddle leaf fig plant.

    Shiplap

    Shiplap is a style of wall siding characterized by long planks. They are mounted horizontally or vertically with a slight gap between. We offer a range of sizes and materials included Primed MDF, Primed Finger Joint Pine and Raw Pine.

  • Tongue and Groove

    Tongue and Groove paneling is often used in a wainscot application to decorate or cover a wall. The boards fit together edge to edge using a slot and ridge on the opposite edge. We offer a range of sizes and materials including, Primed MDF, Primed Finger Joint Pine, Cedar and more. As well, it can come in Nickle Gap or V-Joint styles.

  • A set of four beige colored rectangular particle boards stacked with each layer slightly smaller than the one below, creating a stepped effect.

    MDF Panel

    We offer a wide range of high-quality MDF panels to suit different project needs. Our selection includes exterior grade panels that are water-resistant, ideal for outdoor use, as well as durable Ranger Board options available in various sizes and thicknesses.

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Download our brochures for easy offline viewing and inspiration for your next project.

Interior Millwork Combinations

Explore all of our products in our Interactive Showroom

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