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Proudly Canadian Owned & Operated since 1964 🍁
Proudly Canadian Owned & Operated since 1964 🍁

Plywood, OSB, MDF, & Specialty Panels

Search our large selection of plywood, OSB, MDF, & Birch more at Griff Building Supplies.

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  • Degrade Fir Plywood 4-ft x 8-ft
    Save up to 16% Save %
    $38.98
    $25.69 - $72.22
    $38.98
    $25.69 - $72.22
    $25.69 - $72.22
    $25.69

    Standard Fir Plywood 4-ft x 8-ft

    Griff

    Available Thickness: 3/8", 1/2", 5/8", 3/4", 1" Crafted from premium Douglas Fir (DFP) and Canadian softwood species (CSP), square-edge, plywood pa...

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    $38.98
    $25.69 - $72.22
    $38.98
    $25.69 - $72.22
    $25.69 - $72.22
    $25.69
    Save up to 16% Save %
  • Fire Treated Standard Fir Plywood
    $90.04 - $126.67
    $90.04 - $126.67
    $90.04 - $126.67
    $90.04

    Fire Treated Standard Fir Plywood 4-ft x 8-ft

    Griff

    Available Thickness: 1/2", 5/8", 3/4" Shield your building with Fire Treated Standard Fir Plywood. Specially treated with a chemical barrier, it ch...

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    $90.04 - $126.67
    $90.04 - $126.67
    $90.04 - $126.67
    $90.04
  • MDF Panel 48" x 96" Premium
    $21.09 - $52.15
    $21.09 - $52.15
    $21.09 - $52.15
    $21.09

    MDF Panel 4-ft x 8-ft

    Griff

    Expertly designed for various interior DIY projects, the MDF Panel is an industrial-grade product made from 100% recycled wood fibre. Its top-quali...

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    $21.09 - $52.15
    $21.09 - $52.15
    $21.09 - $52.15
    $21.09
  • Good One Side Sanded Fir Plywood 4' x 8'
    $49.05 - $81.29
    $49.05 - $81.29
    $49.05 - $81.29
    $49.05

    G1S Sanded Fir Plywood 4-ft x 8-ft

    Griff

    Good One Side (G1S) is a premium panel that provides a combination of performance, cost-effectiveness and reliability that competing panels cannot ...

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    $49.05 - $81.29
    $49.05 - $81.29
    $49.05 - $81.29
    $49.05
  • Tongue & Groove Fir Plywood 4-ft x 8-ft
    Tongue & Groove Fir Plywood 4-ft x 8-ft
    $40.54 - $48.46
    $40.54 - $48.46
    $40.54 - $48.46
    $40.54

    Standard T&G Fir Plywood 4-ft x 8-ft

    Griff

    Available Thickness: 5/8", 3/4" 4'x8' Standard Tongue & Groove Fir Plywood. Crafted from premium Douglas Fir (DFP) and Canadian softwood specie...

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    $40.54 - $48.46
    $40.54 - $48.46
    $40.54 - $48.46
    $40.54
  • 3/4 Inch Tongue & Groove Slect Grade Fir Plywood 4-ft x 8-ft
    5/8 Inch Tongue & Groove Select Grade Fir Plywood 4-ft x 8-ft
    $46.25 - $53.75
    $46.25 - $53.75
    $46.25 - $53.75
    $46.25

    Select T&G Fir Plywood 4-ft x 8-ft

    Griff

    Available Thickness: 5/8", 3/4" 4'x8' Select Tongue & Groove Fir Plywood. Crafted from premium Douglas Fir (DFP) and Canadian softwood species ...

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    $46.25 - $53.75
    $46.25 - $53.75
    $46.25 - $53.75
    $46.25
  • Oriented Strand Board OSB 4-ft x 8-ft Sheathing
    $13.84 - $35.11
    $13.84 - $35.11
    $13.84 - $35.11
    $13.84

    OSB Sheathing 4-ft x 8-ft

    Griff

    4' x 8' Oriented strand board (OSB) is a type of engineered wood similar to particle board, formed by adding adhesives and then compressing layers ...

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    $13.84 - $35.11
    $13.84 - $35.11
    $13.84 - $35.11
    $13.84
  • 1-Side MDO Fir Plywood 4-ft x 8-ft
    $63.89 - $116.75
    $63.89 - $116.75
    $63.89 - $116.75
    $63.89

    1-Side MDO Fir Plywood 4-ft x 8-ft

    Griff

    Medium density overlaid plywood is an exterior plywood with a weather-resistant resin overlay that resists water, weather and wear. It has a smooth...

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    $63.89 - $116.75
    $63.89 - $116.75
    $63.89 - $116.75
    $63.89
  • $20.99 - $29.69
    $20.99 - $29.69
    $20.99 - $29.69
    $20.99

    OSB Sheathing 4-ft x 9-ft

    Griff

    4' x 9' Oriented strand board (OSB) is a type of engineered wood similar to particle board, formed by adding adhesives and then compressing layers ...

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    $20.99 - $29.69
    $20.99 - $29.69
    $20.99 - $29.69
    $20.99
  • $38.98 - $142.10
    $38.98
    $109.99 - $142.10
    $109.99 - $142.10
    $109.99

    Premium Marine Grade G2S A-B Fir Plywood 4-ft x 8-ft

    Griff

    Premium Marine-Grade Fir Plywood (A-B Grade) When the environment is demanding and structural integrity is non-negotiable, our Marine-Grade Dougl...

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    $38.98 - $142.10
    $38.98
    $109.99 - $142.10
    $109.99 - $142.10
    $109.99
  • 7/16" Donna Conna Fiberboard Natural 4-ft x 8-ft
    $22.19 - $22.19
    $22.19
    $22.19 - $22.19
    $22.19

    7/16" Donna Conna Fiberboard Natural 4-ft x 8-ft

    Griff

    The 7/16" Donna Conna Fiberboard Natural (4-ft x 8-ft) is a versatile building material ideal for lining, insulating, and sound deadening. Its stur...

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    $22.19 - $22.19
    $22.19
    $22.19 - $22.19
    $22.19
  • 1" x 11-1/2" Bullnose OSB Stair Tread 12'
    $33.95 - $33.95
    $33.95
    $33.95 - $33.95
    $33.95

    1" x 11-1/2" Bullnose OSB Stair Tread 12'

    Griff

    Expertly manufactured for a precise fit, this 12' Bullnose OSB Stair Tread is flat and straight for quicker assembly. Its low moisture content redu...

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    $33.95 - $33.95
    $33.95
    $33.95 - $33.95
    $33.95