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Plywood

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SKU 059014

CDX Plywood 15/32 in x 4 ft x 12 ft Str 1

Original price $117.84 - Original price $117.84
Original price
$117.84
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About This Product Sheathing Plywood 15/32 in. x 4 ft. x 12 ft Structural 1 Grade CDX is specifically designed for engineered uses such as structur...

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SKU 490481

AC Plywood 23/32 in x 4 ft x 8 ft Fire-Retardant Treated

Original price $137.83 - Original price $137.83
Original price
$137.83
$137.83 - $137.83
Current price $137.83
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About This Product Fire-retardant plywood is a specially treated wood panel designed to slow the spread of flames and reduce smoke production in th...

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SKU 787937

C3 Plywood 3/4 in x 4 ft x 8 ft Hardwood Maple

Original price $97.54 - Original price $97.54
Original price
$97.54
$97.54 - $97.54
Current price $97.54
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About This Product Beautiful hardwood grains extend along the length of this plywood project panel, which showcases rotary-cut veneers from trees t...

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SKU 478211

CDX Plywood 23/32 in x 4 ft x 10 ft Str 1

Original price $78.25 - Original price $78.25
Original price
$78.25
$78.25 - $78.25
Current price $78.25
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About This Product Sheathing Plywood 23/32 in. x 4 ft. x 10 ft Structural Grade CDX  is specifically designed for engineered uses such as structura...

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SKU 836570

CDX Plywood 23/32 in x 4 ft x 10 ft Str 1

Original price $72.12 - Original price $72.12
Original price
$72.12
$72.12 - $72.12
Current price $72.12
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About This Product Plywood is a robust structural material used where strength and rigidity are necessary for subfloors, wall or roof sheathing, an...

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SKU 730908

CD Plywood 19/32 in x 4 ft x 8 ft Fire-Retardant Treated

Original price $57.66 - Original price $57.66
Original price
$57.66
$57.66 - $57.66
Current price $57.66
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About This Product Fire-retardant plywood is a specially treated wood panel designed to slow the spread of flames and reduce smoke production in th...

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SKU 793073

CD Plywood 23/32 in x 4 ft x 8 ft Fire-Retardant Treated

Original price $68.93 - Original price $68.93
Original price
$68.93
$68.93 - $68.93
Current price $68.93
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About This Product Fire-retardant plywood is a specially treated wood panel designed to slow the spread of flames and reduce smoke production in th...

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SKU 843066

C3 Plywood Birch 3/4 in x 4 ft x 8 ft Hardwood

Original price $92.97 - Original price $92.97
Original price
$92.97
$92.97 - $92.97
Current price $92.97
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About This Product Veneered construction provides these decorative plywood project panels with the strength, flatness, and rigidity needed to meet ...

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SKU 667717

ACX Plywood 15/32 in x 4 ft x 8 ft Pine

Original price $53.40 - Original price $53.40
Original price
$53.40
$53.40 - $53.40
Current price $53.40
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About This Product The 15/32 in. x 4 ft. x 8 ft. ACX Sanded Pine Plywood Panel boasts an excellent appearance thanks to its knot-free face veneer a...

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SKU 296941

CDX Plywood 19/32 in x 4 ft x 10 ft Str 1

Original price $68.74 - Original price $68.74
Original price
$68.74
$68.74 - $68.74
Current price $68.74
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About This Product Sheathing Plywood 19/32 in. x 4 ft. x 10 ft Structural Grade CDX is specifically designed for engineered uses such as structural...

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SKU 708727

CDX Plywood 19/32 in x 4 ft x 8 ft Str 1

Original price $32.48 - Original price $32.48
Original price
$32.48
$32.48 - $32.48
Current price $32.48
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About This Product Sheathing Plywood 19/32 in. x 4 ft. x 8 ft Structural Grade CDX is specifically designed for engineered uses such as structural ...

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SKU 823445

CDX Plywood 11/32 in x 4 ft x 8 ft Str 1

Original price $26.77 - Original price $26.77
Original price
$26.77
$26.77 - $26.77
Current price $26.77
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About This Product Sheathing Plywood 11/32 in. x 4 ft. x 8 ft Structural Grade CDX is specifically designed for engineered uses such as structural ...

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SKU 948796

ACX Plywood 23/32 in x 4 ft x 10 ft Pine

Original price $178.20 - Original price $178.20
Original price
$178.20
$178.20 - $178.20
Current price $178.20
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About This Product The 23/32 in. x 4 ft. x 10 ft. ACX Sanded Pine Plywood Panel boasts an excellent appearance thanks to its knot-free face veneer ...

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SKU 478955

CDX Plywood 11/32 in x 4 ft x 10 ft Str 1

Original price $46.28 - Original price $46.28
Original price
$46.28
$46.28 - $46.28
Current price $46.28
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About This Product Avoid judging this product by its appearance. Plywood sheathing might not be visually appealing, but it is incredibly practical....

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SKU 253425

CDX Plywood 19/32 in x 4 ft x 10 ft Str 1

Original price $64.42 - Original price $64.42
Original price
$64.42
$64.42 - $64.42
Current price $64.42
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About This Product Avoid judging this product by its appearance. Plywood sheathing might not be visually appealing, but it is incredibly practical....

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SKU 885181

MDO Plywood 15/32 in x 4 ft x 8 ft G2S

Original price $78.46 - Original price $78.46
Original price
$78.46
$78.46 - $78.46
Current price $78.46
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About This Product This 15/32 in. (1/2 in. nominal) MDO Plywood combines the strength of softwood with the durability of a resin-treated overlay on...

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SKU 687819

MDO Plywood 11/32 in x 4 ft x 8 ft G2S

Original price $77.50 - Original price $77.50
Original price
$77.50
$77.50 - $77.50
Current price $77.50
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About This Product This 11/32 in. (3/8 in. nominal) Medium Density Overlay Plywood is designed for lightweight exterior applications. With a smooth...

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SKU 654763

CD Plywood 15/32 in x 4 ft x 8 ft Fire-Retardant Treated

Original price $51.38 - Original price $51.38
Original price
$51.38
$51.38 - $51.38
Current price $51.38
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About This Product Fire-retardant plywood is a specially treated wood panel designed to slow the spread of flames and reduce smoke production in th...

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SKU 793242

C2 Plywood 1/4 in x 4 ft x 8 ft Birch 1 Side Prefinished Hardwood

Original price $47.28 - Original price $47.28
Original price
$47.28
$47.28 - $47.28
Current price $47.28
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About This Product This hardwood plywood is ideal for indoor applications, both from a functional and visual standpoint. Few materials offer such a...

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SKU 295408

C3 Plywood Red Oak 3/4 in x 4 ft x 8 ft Hardwood

Original price $97.54 - Original price $97.54
Original price
$97.54
$97.54 - $97.54
Current price $97.54
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About This Product The elegance and warmth of genuine hardwood are evident in these Red Oak Plywood panels. Constructed with a soy-based technology...

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SKU 332057

C3 Plywood Birch 1/2 in x 4 ft x 8 ft Hardwood

Original price $80.70 - Original price $80.70
Original price
$80.70
$80.70 - $80.70
Current price $80.70
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About This Product Veneered construction provides these decorative Birch Plywood Project Panels with the durability, flatness, and rigidity require...

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SKU 075503

CDX Plywood 19/32 in x 4 ft x 8 ft T&G

Original price $42.90 - Original price $42.90
Original price
$42.90
$42.90 - $42.90
Current price $42.90
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About This Product RigidFloor plywood underlayment is crafted from Western Softwoods. RigidFloor features either a touch-sanded or fully-sanded sur...

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SKU 825653

Underlayment Plywood 1/5 in x 4 ft x 8 ft Interior Hardwood

Original price $32.57 - Original price $32.57
Original price
$32.57
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Current price $32.57
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About This Product Authorized for use as a base layer for carpet, hardwood, and vinyl flooring. (Follow installation guidelines). Easily cut with a...

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Plywood: What You Need to Know

Plywood, also known as engineered wood or layered wood panels, is a durable and versatile material crafted by bonding thin wood veneers together for strength and stability. Available in exterior and interior types, it suits a wide range of applications. Exterior plywood features water-resistant adhesives and treatments, making it ideal for siding, roofing, and other outdoor projects. Interior plywood, on the other hand, offers smooth surfaces and high aesthetic value, perfect for furniture, cabinetry, and wall paneling in controlled environments.

Grades:

  • A Grade: A-grade plywood has a smooth, sanded surface with minimal knots, making it ideal for high-visibility applications like cabinetry and paneling. It offers the highest surface quality.
  • B Grade: Slightly less refined than A-grade, B-grade plywood contains minor imperfections but maintains a polished appearance suitable for applications where aesthetics matter.
  • C Grade (C2, C3, C4): C-grade plywood is designed for structural uses like bracing and subfloors. The numbers (2, 3, 4) indicate increasing imperfections, with higher numbers having more flaws while preserving structural strength.
  • D Grade: D-grade plywood has the roughest surface, with visible knots and defects. It is commonly used for structural purposes where appearance is not a priority.

Examples:

  • AC Grades: These grades feature an A-grade face and a C-grade back, providing a smooth, refined surface on one side for visible applications like cabinetry or interior paneling. AC is an excellent choice for interior projects requiring both aesthetic appeal and structural reliability.
  • CDX Plywood: CDX plywood is an exterior-grade material combining a C-grade face and D-grade back. It is cost-effective and moisture-resistant, making it a dependable choice for roofing and sheathing.

Features:

  • Pressure-Treated: Pressure-treated plywood is infused with chemicals to enhance its resistance to moisture, decay, and insects, making it ideal for outdoor and ground-contact applications.
  • Fire-Retardant Treated: Fire-retardant plywood is specially treated to slow flame spread and reduce smoke production, meeting industry standards such as ASTM E84 and NFPA 703.
  • Sanded: Sanded plywood offers a smooth, polished surface perfect for projects requiring a clean finish, such as cabinetry, shelving, or decorative wall panels.
  • Prefinished: Prefinished plywood comes with a factory-applied finish, eliminating the need for on-site painting or staining, providing a professional appearance.
  • Sheathing: Sheathing-grade plywood provides structural stability for walls, roofs, and subfloors in both residential and commercial buildings.
  • T&G (Tongue and Groove): T&G plywood features interlocking edges that create a snug fit, ensuring stability and reducing gaps in flooring or decking applications.

Materials:

  • Hardwood: Hardwood plywood is prized for its strength and durability, made from species like oak, maple, or birch. It provides a premium look while maintaining excellent load-bearing capabilities for structural applications.
  • Softwood: Softwood plywood, typically made from pine or fir, is lightweight and cost-effective, making it suitable for general construction, roofing, and subflooring.

Why Choose Supply Ontime?

At Supply Ontime, we offer reliable materials designed to meet your project’s needs. With same-day delivery across the Greater Los Angeles area, we make it easy to keep your projects on schedule. Order plywood now and get it delivered today!

Plywood FAQ

Can I schedule plywood deliveries to specific neighborhoods like Pasadena or Manhattan Beach?

Yes. Supply Ontime offers same‑day or scheduled deliveries of plywood panels throughout Greater Los Angeles. When ordering, provide the job‑site address and any special instructions. For tight streets in areas like Silver Lake or downtown, scheduling a two‑hour window helps ensure we arrive when access is available.

 When should I choose plywood instead of OSB?

Plywood resists moisture better than OSB and will dry out and return to its original thickness after getting wet. OSB takes longer to absorb water, but once saturated, it swells more and remains swollen. Plywood is also stiffer, and nails or screws are more likely to stay secure. If you’re building in a damp microclimate or expect frequent rain, use exterior‑grade or marine plywood.

 When should you choose structural plywood over regular plywood in Los Angeles?

Structural plywood should be used for walls, roofs, subfloors, and other load-bearing areas that need to meet Los Angeles building codes. These panels are designed to handle moisture, structural stress, and seismic movement. Regular plywood is better for cabinets, furniture, shelving, and decorative interior surfaces where appearance matters more than structural strength. Choosing the correct panel helps your build stay durable, safe, and code-compliant.

How should I store plywood panels to prevent warping?

Store plywood in a dry location with good ventilation that protects it from sunlight and moisture exposure. The presence of moisture leads to warping and delamination of the material. Stack the sheets flat on a level surface that provides enough support for even weight distribution while keeping them elevated from the ground, and use a breathable tarp or plastic sheet for protection against dust and moisture while maintaining airflow. These protective measures function to stop harm from occurring in the humid climate of coastal Los Angeles.

What is the difference between hardwood and softwood plywood?

Hardwood plywood is made from dense woods like oak, birch, or maple, giving it greater strength and a smoother surface that is ideal for furniture, cabinetry, and visible finishes. Softwood plywood, made from pine, fir, or spruce, is lighter and often used for structural applications like roofing, subflooring, and wall sheathing. In Los Angeles construction, hardwood plywood is often chosen for high-end interior projects, while softwood plywood is preferred for framing and large-scale builds where durability and cost efficiency are priorities.