Plywood & OSB

Built for strength, coverage, and jobsite efficiency. Capital Lumber supplies a full range of plywood and OSB sheathing for structural, exterior, and finish applications. From standard OSB and CDX plywood to AC panels and ZIP System sheathing, products are available by the sheet or in full units, with common thicknesses stocked and fast access when timing matters. Backed by dependable inventory and builder-focused logistics, Capital Lumber helps keep framing and enclosure phases moving without delays.

  • Bright coastal living room with soft natural light, stone flooring, neutral furnishings, and floor-to-ceiling glass opening to an outdoor patio.

    Structural Sheathing (OSB)

    Reliable coverage for walls, floors, and roofs, OSB provides consistent strength at scale. Available in standard and tongue-and-groove profiles, stocked in common thicknesses for framing efficiency and fast pulls.

  • Flat-lay of curated material samples including stone tiles, textured fabrics, ceramics, and botanicals arranged on a neutral surface.

    Exterior Rated Plywood (CDX)

    Designed to handle exposure during construction, CDX plywood offers dependable performance where moisture resistance matters. A go-to option for exterior walls, roofs, and subflooring, available by the sheet or unit.

  • Macro photograph of light, textured wool fabric with soft shadows highlighting the natural fibers.

    Finish & Utility Plywood (AC)

    Cleaner faces for visible or interior use, AC plywood balances strength with appearance. Ideal for applications where one finished side matters, with common sizes kept in stock.

  • Interior of a warm, modern café rendered in line-art style with high ceilings, pendant lighting, and wood and metal furnishings.

    High-Performance Sheathing (ZIP System)

    Integrated air and water control in one step, ZIP OSB sheathing streamlines enclosure and weatherization. Available in stocked sizes with fast turnaround, helping crews build tighter envelopes without added layers.

Overview

OSB (Oriented Strand Board)

Product

Dimension

Unit Size

Stock

7/16" OSB

48" x 96" x 7/16" thick

78 pc. Units

✅ In Stock

15/32" OSB

48" x 96" x 15/32" thick

72 pc. Units

✅ In Stock

5/18" OSB

48" x 96" x 19/32" thick

57 pc. Units

✅ In Stock

3/4" OSB Tongue and Groove

48" x 96" x 23/32" thick

48 pc. Units

✅ In Stock

7/8" OSB Tongue and Groove

48" x 96" x 7/8" thick

39 pc. Units

✅ In Stock

1-1/8 OSB Tongue and Groove

48" x 96" x 1-1/8" thick

31 pc. Units

✅ In Stock

CDX Plywood

1 C Face / 1 D Face / Glue rated for temporary moisture during construction process

Product

Dimension

Unit Size

Stocked

3/8" CDX

48" x 96" x 3/8" thick

88 pc. Units

✅ In Stock

1/2" CDX

48" x 96" x 15/32" thick

70 pc. Units

✅ In Stock

5/8" CDX

48" x 96" x 19/32" thick

55 pc. Units

✅ In Stock

3/4" CDX

48" x 96" x23/32" thick

48 pc. Units

✅ In Stock

AC Plywood

1 A Face / 1 C Face / Glue rated for temporary moisture during construction process

Product

Dimension

Unit Size

Stocked

1/4" AC

48" x 96" x 1/4" thick

140 pc. Units

✅ In Stock

3/8" AC

48" x 96" x 3/8" thick

108 pc. Units

✅ In Stock

1/2" AC

48" x 96" x 1/2" thick

80 pc. Units

✅ In Stock

3/4" AC

48" x 96" x 3/4" thick

54 pc. Units

✅ In Stock

ZIP OSB Sheathing

Product

Dimension

Unit Size

Stocked

7/16" Zip OSB

48" x 96" x 7/16" Thick

78 pc. Units

✅ In Stock

5/8" Zip OSB

48" x 96" x 7/16" Thick

57 pc. Units

⌛ 1 Day Transit

Contact Us

(208) 470-7888

Plywood & OSB

Built for strength, coverage, and jobsite efficiency. Capital Lumber supplies a full range of plywood and OSB sheathing for structural, exterior, and finish applications. From standard OSB and CDX plywood to AC panels and ZIP System sheathing, products are available by the sheet or in full units, with common thicknesses stocked and fast access when timing matters. Backed by dependable inventory and builder-focused logistics, Capital Lumber helps keep framing and enclosure phases moving without delays.

  • Bright coastal living room with soft natural light, stone flooring, neutral furnishings, and floor-to-ceiling glass opening to an outdoor patio.

    Structural Sheathing (OSB)

    Reliable coverage for walls, floors, and roofs, OSB provides consistent strength at scale. Available in standard and tongue-and-groove profiles, stocked in common thicknesses for framing efficiency and fast pulls.

  • Flat-lay of curated material samples including stone tiles, textured fabrics, ceramics, and botanicals arranged on a neutral surface.

    Exterior Rated Plywood (CDX)

    Designed to handle exposure during construction, CDX plywood offers dependable performance where moisture resistance matters. A go-to option for exterior walls, roofs, and subflooring, available by the sheet or unit.

  • Macro photograph of light, textured wool fabric with soft shadows highlighting the natural fibers.

    Finish & Utility Plywood (AC)

    Cleaner faces for visible or interior use, AC plywood balances strength with appearance. Ideal for applications where one finished side matters, with common sizes kept in stock.

  • Interior of a warm, modern café rendered in line-art style with high ceilings, pendant lighting, and wood and metal furnishings.

    High-Performance Sheathing (ZIP System)

    Integrated air and water control in one step, ZIP OSB sheathing streamlines enclosure and weatherization. Available in stocked sizes with fast turnaround, helping crews build tighter envelopes without added layers.

Overview

OSB (Oriented Strand Board)

Product

Dimension

Unit Size

Stock

7/16" OSB

48" x 96" x 7/16" thick

78 pc. Units

✅ In Stock

15/32" OSB

48" x 96" x 15/32" thick

72 pc. Units

✅ In Stock

5/18" OSB

48" x 96" x 19/32" thick

57 pc. Units

✅ In Stock

3/4" OSB Tongue and Groove

48" x 96" x 23/32" thick

48 pc. Units

✅ In Stock

7/8" OSB Tongue and Groove

48" x 96" x 7/8" thick

39 pc. Units

✅ In Stock

1-1/8 OSB Tongue and Groove

48" x 96" x 1-1/8" thick

31 pc. Units

✅ In Stock

CDX Plywood

1 C Face / 1 D Face / Glue rated for temporary moisture during construction process

Product

Dimension

Unit Size

Stocked

3/8" CDX

48" x 96" x 3/8" thick

88 pc. Units

✅ In Stock

1/2" CDX

48" x 96" x 15/32" thick

70 pc. Units

✅ In Stock

5/8" CDX

48" x 96" x 19/32" thick

55 pc. Units

✅ In Stock

3/4" CDX

48" x 96" x23/32" thick

48 pc. Units

✅ In Stock

AC Plywood

1 A Face / 1 C Face / Glue rated for temporary moisture during construction process

Product

Dimension

Unit Size

Stocked

1/4" AC

48" x 96" x 1/4" thick

140 pc. Units

✅ In Stock

3/8" AC

48" x 96" x 3/8" thick

108 pc. Units

✅ In Stock

1/2" AC

48" x 96" x 1/2" thick

80 pc. Units

✅ In Stock

3/4" AC

48" x 96" x 3/4" thick

54 pc. Units

✅ In Stock

ZIP OSB Sheathing

Product

Dimension

Unit Size

Stocked

7/16" Zip OSB

48" x 96" x 7/16" Thick

78 pc. Units

✅ In Stock

5/8" Zip OSB

48" x 96" x 7/16" Thick

57 pc. Units

⌛ 1 Day Transit

Contact Us

Check Stock

Plywood & OSB

Built for strength, coverage, and jobsite efficiency. Capital Lumber supplies a full range of plywood and OSB sheathing for structural, exterior, and finish applications. From standard OSB and CDX plywood to AC panels and ZIP System sheathing, products are available by the sheet or in full units, with common thicknesses stocked and fast access when timing matters. Backed by dependable inventory and builder-focused logistics, Capital Lumber helps keep framing and enclosure phases moving without delays.

  • Bright coastal living room with soft natural light, stone flooring, neutral furnishings, and floor-to-ceiling glass opening to an outdoor patio.

    Structural Sheathing (OSB)

    Reliable coverage for walls, floors, and roofs, OSB provides consistent strength at scale. Available in standard and tongue-and-groove profiles, stocked in common thicknesses for framing efficiency and fast pulls.

  • Flat-lay of curated material samples including stone tiles, textured fabrics, ceramics, and botanicals arranged on a neutral surface.

    Exterior Rated Plywood (CDX)

    Designed to handle exposure during construction, CDX plywood offers dependable performance where moisture resistance matters. A go-to option for exterior walls, roofs, and subflooring, available by the sheet or unit.

  • Macro photograph of light, textured wool fabric with soft shadows highlighting the natural fibers.

    Finish & Utility Plywood (AC)

    Cleaner faces for visible or interior use, AC plywood balances strength with appearance. Ideal for applications where one finished side matters, with common sizes kept in stock.

  • Interior of a warm, modern café rendered in line-art style with high ceilings, pendant lighting, and wood and metal furnishings.

    High-Performance Sheathing (ZIP System)

    Integrated air and water control in one step, ZIP OSB sheathing streamlines enclosure and weatherization. Available in stocked sizes with fast turnaround, helping crews build tighter envelopes without added layers.

Overview

OSB (Oriented Strand Board)

Product

Dimension

Unit Size

Stock

7/16" OSB

48" x 96" x 7/16" thick

78 pc. Units

✅ In Stock

15/32" OSB

48" x 96" x 15/32" thick

72 pc. Units

✅ In Stock

5/18" OSB

48" x 96" x 19/32" thick

57 pc. Units

✅ In Stock

3/4" OSB Tongue and Groove

48" x 96" x 23/32" thick

48 pc. Units

✅ In Stock

7/8" OSB Tongue and Groove

48" x 96" x 7/8" thick

39 pc. Units

✅ In Stock

1-1/8 OSB Tongue and Groove

48" x 96" x 1-1/8" thick

31 pc. Units

✅ In Stock

CDX Plywood

1 C Face / 1 D Face / Glue rated for temporary moisture during construction process

Product

Dimension

Unit Size

Stocked

3/8" CDX

48" x 96" x 3/8" thick

88 pc. Units

✅ In Stock

1/2" CDX

48" x 96" x 15/32" thick

70 pc. Units

✅ In Stock

5/8" CDX

48" x 96" x 19/32" thick

55 pc. Units

✅ In Stock

3/4" CDX

48" x 96" x23/32" thick

48 pc. Units

✅ In Stock

AC Plywood

1 A Face / 1 C Face / Glue rated for temporary moisture during construction process

Product

Dimension

Unit Size

Stocked

1/4" AC

48" x 96" x 1/4" thick

140 pc. Units

✅ In Stock

3/8" AC

48" x 96" x 3/8" thick

108 pc. Units

✅ In Stock

1/2" AC

48" x 96" x 1/2" thick

80 pc. Units

✅ In Stock

3/4" AC

48" x 96" x 3/4" thick

54 pc. Units

✅ In Stock

ZIP OSB Sheathing

Product

Dimension

Unit Size

Stocked

7/16" Zip OSB

48" x 96" x 7/16" Thick

78 pc. Units

✅ In Stock

5/8" Zip OSB

48" x 96" x 7/16" Thick

57 pc. Units

⌛ 1 Day Transit

Contact Us

Check Stock

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Stack of dimensional lumber showing smooth planed surfaces and visible grain patterns of Douglas Fir boards.

Dimensional Lumber

Stack of dimensional lumber showing smooth planed surfaces and visible grain patterns of Douglas Fir boards.

Dimensional Lumber

Close-up of heavy timber joinery showing interlocking Douglas Fir beams with traditional wood pegs.

Posts & Timbers

Close-up of heavy timber joinery showing interlocking Douglas Fir beams with traditional wood pegs.

Posts & Timbers

Assorted trim and moulding boards in MDF, oak, and pine — showing baseboard and casing profiles used for interior finishing.

Trim & Millwork

Assorted trim and moulding boards in MDF, oak, and pine — showing baseboard and casing profiles used for interior finishing.

Trim & Millwork

Stack of dimensional lumber showing smooth planed surfaces and visible grain patterns of Douglas Fir boards.

Dimensional Lumber

Close-up of heavy timber joinery showing interlocking Douglas Fir beams with traditional wood pegs.

Posts & Timbers

A background image of pine wood.

  • Capital Lumber Co.

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    Locally Owned

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    Northend

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    Capital Lumber Co.

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    Locally Owned

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    Northend

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    Capital Lumber Co.

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    Locally Owned

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    Northend

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A background image of pine wood.

  • Capital Lumber Co.

    ·

    Locally Owned

    ·

    Northend

    ·

    Capital Lumber Co.

    ·

    Locally Owned

    ·

    Northend

    ·

    Capital Lumber Co.

    ·

    Locally Owned

    ·

    Northend

    ·

A background image of pine wood.

  • Capital Lumber Co.

    ·

    Locally Owned

    ·

    Northend

    ·

    Capital Lumber Co.

    ·

    Locally Owned

    ·

    Northend

    ·

    Capital Lumber Co.

    ·

    Locally Owned

    ·

    Northend

    ·