Lumber, Plywood, Decking, Fencing & EWP

We carry the lumber you need for every aspect of your project. From rough pine to premium SPF, from pressure-treated decking to engineered trusses, we have what you need. Not only do we have a large supply of materials to choose from, but we can also help you get it home.

Contact us about our delivery options, or see our lumber size chart.

Dimensional Lumber

Dimensional Lumber

We carry many different types of wood in a variety of sizes. Whether you need to frame a new project or finish the interior, you'll find what you need in our selection of lumber.

Plywood

Plywood & OSB

Our selection of plywood and OSB ranges from unfinished wood to laminated shelving, with everything in between. Tongue & Groove options are available on many of these products, as well, making it even easier to finish your projects.

Decking

Decking & Fencing

Our pressure-treated lumber will keep your decks and fences looking great year after year. Our experts can help you choose the right materials to withstand the elements, for longer, hassle-free enjoyment. Visit Landscape, Garden & Patio for deck blocks to get your project started.

Engineered Wood

Trusses & Engineered Wood Products (EWP)

At North Dundas Building Supplies, we have the products you need to build from the ground up. We can order trusses, LVL's and floor joists as needed.

Lumber Size Chart

SPF  SPF Premium Pressure Treated  Hemlock  Pine  OSB  Plywood  Other Boards

SPF

  • 1x3
  • 1x3x8
  • 1x3x12
  • 1x3x16
  • 1x4
  • 1x4x10
  • 1x4x12
  • 1x4x16
  • 2x3
  • 2x3x8
  • 2x3x10
  • 2x3x12
  • 2x4
  • 2x4x92-5/8
  • 2x4x8
  • 2x4x104-5/8
  • 2x4x10
  • 2x4x12
  • 2x4x14
  • 2x4x16
  • 2x6
  • 2x6x8
  • 2x6x10
  • 2x6x12
  • 2x6x14
  • 2x6x16
  • 2x8
  • 2x8x8
  • 2x8x10
  • 2x8x12
  • 2x8x14
  • 2x8x16
  • 2x10
  • 2x10x8
  • 2x10x10
  • 2x10x12
  • 2x10x14
  • 2x10x16
  • 2x10x20
  • 2x12
  • 2x12x8
  • 2x12x10
  • 2x12x12
  • 2x12x14
  • 2x12x16

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SPF Premium Lumber

  • 2x4
  • 2x4x8
  • 2x4x10
  • 2x6
  • 2x6x8
  • 2x6x10

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Pressure Treated Lumber

  • 1x4
  • 1x4x8
  • 1x6
  • 1x6x6
  • 1x6x8
  • 1x6x10
  • 5/4x6
  • 5/4x6x8
  • 5/4x6x10
  • 5/4x6x12
  • 5/4x6x14
  • 5/4x6x16
  • 2x4
  • 2x4x8
  • 2x4x10
  • 2x4x12
  • 2x4x14
  • 2x4x16
  • 2x6
  • 2x6x8
  • 2x6x10
  • 2x6x12
  • 2x6x14
  • 2x6x16
  • 2x8
  • 2x8x8
  • 2x8x10
  • 2x8x12
  • 2x8x14
  • 2x8x16
  • 2x10
  • 2x10x8
  • 2x10x10
  • 2x10x12
  • 2x10x14
  • 2x10x16
  • 2x12
  • 2x12x12
  • 2x12x16
  • 4x4
  • 4x4x8
  • 4x410
  • 4x4x12
  • 5x5
  • 5x5x10
  • 5x5x12
  • 6x6
  • 6x6x8
  • 6x6x10
  • 6x6x12
  • 6x6x14
  • 6x6x16

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Hemlock - Rough Cut

  • 1x8
  • 1x8x10
  • 1x8x12
  • 1x8x14
  • 2x6
  • 2x6x10
  • 2x6x12
  • 2x6x14
  • 2x8
  • 2x8x10
  • 2x8x12
  • 2x8x14
  • 4x4
  • 4x4x16

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Pine - Dressed 4 Sides (Shed Stock)

  • 1x3   (17-19 V-Groove 6")
  • 1x3x6
  • 1x3x8
  • 1x3x10
  • 1x3x12
  • 1x3x14
  • 1x3x16
  • 1x4   (17-19 V-Groove 8")
  • 1x4x6
  • 1x4x8
  • 1x4x10
  • 1x4x12
  • 1x4x14
  • 1x4x16
  • 1x6   (17-19 V-Groove 10")
  • 1x6x6
  • 1x6x8
  • 1x6x10
  • 1x6x12
  • 1x6x14
  • 1x6x16
  • 1x8   (17-19 V-Groove 12")
  • 1x8x6
  • 1x8x8
  • 1x8x10
  • 1x8x12
  • 1x8x14
  • 1x8x16
  • 1x10   (17-19 V-Groove 14")
  • 1x10x6
  • 1x10x8
  • 1x10x12
  • 1x10x14
  • 1x10x16
  • 1x12   (17-19 V-Groove 16")
  • 1x12x6
  • 1x12x8
  • 1x12x10
  • 1x12x12
  • 1x12x14
  • 1x12x16

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OSB

  • 7/16x4
  • 7/16x4x8
  • 19/32x4
  • 19/32x4x8 Square Edge
  • 19/32x4x8 Tongue & Groove
  • 23/32x4
  • 23/32x4x8 Tongue & Groove

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Plywood

  • 3/8x4
  • 3/8x4x8
  • 7/16x4
  • 7/16x4x8 Good One Side
  • 1/2x4
  • 1/2x4x8
  • 1/2x4x8 Pressure Treated
  • 5/8x4
  • 5/8x4x8
  • 5/4x4x8 Tongue & Groove
  • 3/4x4
  • 3/4x4x8 Tongue & Groove
  • 3/4x4x8 Good One Side
  • 3/4x4x8 Pressure Treated
  • 1/2x5
  • 1/2x5x5 Baltic Birch

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Other Boards

  • MDF
  • 1/4x4x8
  • 3/4x4x8
  • White PegBoard
  • 1/4x4x8
  • Laminated Plywood
  • 1/2x4x8 - White
  • Luan (Mahogany Underlay)
  • 5.2mmx4x8
  • White Melamine Shelf
  • 5/8x12x97
  • 5/8x16x97
  • 5/8x24x97

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