Serving Bay Area Building Professionals Since 1935

Economy Lumber Company logo

510 261-6100

Monday - Friday   7 am - 5 pm
Saturday   7:30 am - 4:30 pm

Builder uses ZIP System Stretch Flashing Tape to seal ZIP System Sheathing and window opening

Plywood, OSB & ZIP

Plywood, OSB Board, ZIP System & Specialty Panels

We carry a full array of plywood and oriented strand board (OSB) for sheathing, shear walls, underlayment and subfloor applications. Because of our size we are able to keep a complete inventory of panel products used in construction in a wide range of styles, sizes and grades for immediate delivery to your truck or job site.

If you need plywood deliveries on a regular schedule, we can do that. Talk to our contractor sales team for product availability and delivery scheduling.

Economy Lumber Company Since 1935 wagon logo
  • CDX Plywood
  • Pressure Treated Plywood
  • Fire Retardant Plywood
  • Resawn Plywood Siding
  • Sanded Plywood
  • Marine Grade Plywood
  • Concrete Forming Plywood
  • Hardwood Plywood
  • Sturd-I-Floor
  • AdvanTech Flooring
  • Oriented Strand Board
  • OSB Radiant Barrier Roof Sheathing
  • ZIP System Sheathing & Stretch Tape
  • Specialty Panels
CDX plywood sheathing and sanded plywood sheets


Plywood is one of the more widely used wood panel products in use today. Manufactured from thin wood veneers that are layered perpendicular to each other and bonded with strong adhesives under heat and pressure. The result is a graded, dimensionally stable panel with an excellent strength-to-weight ratio that can be used for a wide range of building applications, including subflooring, sheathing and shear walls.

CDX Plywood stack

CDX Plywood

A standard used in construction, we stock CDX plywood in a wide range of thickness and panel sizes. CDX is a grade of plywood where the facing surface is rated C, the back surface is rated D and exterior glue is used. Applications include sheathing, roofing and underlayment.

CDX Plywood
Type Thickness Size
CDX Square Edge, STR 1 3/8" 4x8, 4x9, 4x10
CDX Square Edge, STR 1 1/2" 4x8, 4x9, 4x10, 4x12
CDX Square Edge, T&G 5/8" 4x8
CDX Square Edge, T&G 3/4" 4x8
CDX Square Edge, STR 1 3/4" 4x8, 4x10
CDX Square Edge, T&G 1-1/8" 4x8

CDX T&G Plywood is Full Face (48”).
STR 1: Many items available Structural 1 (STRUCT 1) for increased racking performance, increased cross panel strength and overall panel stiffness.
CDX Radiant Barrier is available via Special Order.

T&G Pressure treated plywood stored at our High Street yard

Pressure Treated Plywood

Pressure treated CDX plywood is treated with Preserve CA-C, a treatment that extends the life of the wood and provides long-term protection against rot, fungal decay and insect attack.

Pressure Treated Plywood
Type Thickness Size
CDX PT 1/2", 5/8", 3/4" 4x8
Sturd-I-Floor T&G PT 3/4", 1-1/8" 4x8

PT = Pressure Treated
Sturd-I-Floor T&G PT is full face (48").
Preserve CA-C is seen as a “greener” preservative and a more sustainable option than previous wood preservatives.

Fire retardant plywood treated with Pyro-Guard

Fire Retardant Plywood

Plywood treated with Pyro-Guard fire retardant has a low combustion rate and unlike a painted on coating is pressure impregnated deep into the wood to provide long lasting protection. When exposed to fire, non-combustible gas and water vapor are produced, and a layer of protective char forms, which limits combustion and insulates the wood from further damage.

Fire Retardant Plywood
Type Thickness Size
CDX Fire Retardant 1/2", 5/8", 3/4" 4x8
ACX Fire Retardant 3/4" 4x8

Hoover Pyro-Guard Interior Fire Retardant Treated Plywood.
Exterior Fire Retardant CDX is available via Special Order.

Plywood Delivery
We stock an extensive range of plywood types, grades and thicknesses used in general construction ready for pick up or delivery. If your project requires something we do not inventory then let us know, we can Special Order and have it delivered to our yard or your jobsite within a day or two.

Exterior plywood siding was used in this American Plywood Association featured home

Resawn Plywood Siding

Resawn Douglas Fir exterior siding panels offer a convenient and cost-effective way to protect the exterior of your home. Whether remodeling or building new, this durable all wood siding provides a classic look and lots of curb appeal when finished with a stain.

Select Grade Resawn Plywood Siding
Type Thickness Size
Plain, 8" OC Shadow Grove 3/8" 4x8
Plain, 4" OC, 8" OC, 12" RBB 5/8" 4x8
Plain, 8" OC 5/8" 4x8, 4x9, 4x10
Plain, 8" OC Primed 5/8" 4x8

Manufactured with a slight, rough-sawn texture running across panel.
OC = On-center
RBB = Reverse Board & Batten with 1/2" channel 4", 8", 12" on-center.
Premium grade and Breckenridge available via Special Order.

The face side of two ACX plywood sheets

Sanded Plywood

A lightweight, strong and durable plywood panel produced with a multi-layered Western softwood inner core and a Pine veneer face that’s been sanded. Used for a variety of applications, these panels are dimensionally stable with exceptional strength and stiffness that lay flat.

Sanded Plywood
Type Thickness Size
ACX Sanded 1/4", 3/8", 1/2", 5/8", 3/4" 4x8

Radiata Pine Plywood Panel / Underlayment rated.

Marine grade plywood stored at our High Street yard

Marine Grade Plywood

Our marine grade plywood is considered a “premium” grade panel for use in situations where you require no core voids and glued with a fully waterproof structural adhesive. Rated for exterior use, marine grade plywood is generally used in harsh environmental conditions, like building a coastal home or maybe building the next Ark.

Marine Grade Plywood
Type Thickness Size
AB Marine Grade 3/4" 4x8

Booth face and back surface veneers are good
Other sizes available via Special Order.

Concrete forming plywood was used in the construction of concrete walls for this garage built into the hillside

Concrete Forming Plywood

Strong, reusable forming panels specifically designed and manufactured for use in concrete forms. Panels provides form strength without deflection for a wide range of projects concrete contractors encounter. The desired surface finish for the concrete will determine the type of panel to use.

Concrete Forming Plywood
Type Feature Size
BBOES Grain transfer 4x8
MDO Smooth Surface 4x8

Mill applied release agent, sealed edges.
BBOES - Suitable for applications where grain transfer is not a problem.
MDO - Resin-impregnated overlay on one side creates a smooth transfer surface.

Hardwood Plywood

A great looking strong and durable hardwood panel of uniform strength with more plys and fewer voids. Often used in casework for making cabinets, bookcases and boxes, our premium grade hardwood plywood provides a highly attractive wood surface that costs less than solid hardwood lumber.

Hardwood Plywood
Type Thickness Size
Prefinished Maple 1/4", 3/4" 4x8
Prefinished Russian Birch 1/2" 4x8
Unfinished Oak 1/4", 3/4" 4x8
Unfinished Birch 1/4", 3/4" 4x8
Luan 1/8", 1/4" 4x8

We have a wide range of prefinished hardwood plywood available via Special Order.

We know being a contractor is a balancing act, very often projects are multifaceted with strict time frames and sometimes things don’t always go as planned. Let us know what you need and how we can help. From early delivery to building products specific to your project, talk to us and we will do our best to make it happen.

Sturd-I-Floor flooring panels showing the T&G


A plywood panel specifically designed for use in single-layer floor construction. Sturd-I-Floor is a combined subfloor-underlayment product with exceptional stiffness and stability. Applications include use under hardwood flooring, carpet & pad, ceramic and vinyl floor coverings.

Type Thickness Size
Sturd-I-Floor T&G 3/4", 1-1/8" 4x8

Sturd-I-Floor T&G is full face (48")
Square edge available via Special Order.
Underlayment rated.

APA Floor Construction Guide
16 pages / 1.8 MB PDF

AdvanTech engineered flooring panels are being installed in this multi-level building

AdvanTech Flooring

Keep the peace and stop the squeaks with AdvanTech® engineered flooring panels. AdvanTech subfloor combines industry-leading strength, superior moisture resistance, and installation ease. Panels are precisely milled with an extremely durable tongue and groove profile for speedy application and a strong, Squeak-Free subfloor assembly.

AdvanTech Flooring
Type Thickness Size
AdvanTech T&G Subfloor 3/4" 4x8

24oz Polyurethane gel-foam adhesive.
Applicator / Glue gun / 12oz Applicator cleaner.

AdvanTech Subfloor Installation Guide
26 pages / 3.2 MB PDF

Oriented Strand Board

Lafayette construction project uses Oriented Strand Board for multi-story sheathing applications

Oriented Strand Board (OSB)

OSB is a versatile, widely used engineered wood product for subflooring and exterior sheathing applications. Manufactured from small strands of wood and glued together in cross-laminated layers under heat and pressure with waterproof resins.

Oriented Strand Board is used for sheathing in this wood frame construction project

OSB Board

OSB structural panels lay flat and are extra stiff, making for quick and easy installation of subfloors and wall sheathing. When properly installed, OSB subflooring can reduce nail-withdrawal and floor squeaks.

Oriented Strand Board
Type Thickness Size
OSB Square Edge 3/8", 1/2", 5/8" 4x8
OSB Structural No. 1 1/2" 4x8, 4x9, 4x10, 4x12

We deliver to the greater Bay Area

OSB Radiant Barrier Roof Sheathing in the High Street yard

OSB Radiant Barrier Roof Sheathing

Designed specifically for roof sheathing applications, OSB radiant barrier features a specially designed aluminum foil laminated to the OSB panel face. Radiant barrier reflects up to 97% of the sun’s radiant heat. By keeping heat from being absorbed into the attic, peak attic temperatures are lowered and a building’s overall HVAC efficiency is improved.

OSB Radiant Barrier
Type Thickness Size
OSB Radiant Barrier 1/2", 5/8" 4x8

Zip System Sheathing & Tape

Workman applies Zip stretch tape around the window opening and the Zip structural sheathing for an energy efficient building envelope

ZIP System Sheathing & Tape

The ZIP System™ sheathing and tape is designed to streamline work on the jobsite. It’s a one-of-a-kind structural roof and wall system with a built-in, air and water-resistive barrier that keeps moisture out and reduces air leakage, while still allowing panels to properly dry. This revolutionary approach to building envelopes is a two-step process that eliminates the need for housewraps and felt while providing built-in weather protection when you build.

Residential construction project after application of ZIP System sheathing and tape

The ZIP System provides durable structural performance combined with moisture and air protection in an easy-to-install sheathing system.

ZIP System Sheathing
Type Thickness Size
ZIP System Sheathing
4x8, 4x9, 4x10
Type Size
ZIP System Flashing
ZIP System Seam Tape 3-3/4"x75' rolls
ZIP System Valley/Window/Door Tape 6"x75' rolls
ZIP System Stretch Tape 6"x20' rolls
ZIP System Liquid Flashing 29oz tube

Made from advanced acrylic adhesive for a long lasting bond.
Application by hand or ZIP System Tape Gun.

ZIP System Sheathing & Tape logo

Product Information

Zip System Sheathing and Zip System Tape Installation Manual

Zip System Installation
Zip System Sheathing and Zip System Tape Installation Manual.
Zip System Installation Manual
61 pages / 3.8MB PDF

Specialty Panels

The versatility of the tool wall panel at the Oakland Public Library

Specialty Panels

We carry an assortment of speciality panel products for a wide range of building and home improvement applications, including pegboard for hanging your tools and then tracing them.

Pegboard and MDF panels
Specialty Panels
Type Thickness Size
Melamine (white both sides) 1/4", 3/4" 4x8
Hardboard Tempered (one side) 1/8", 1/4" 4x8
Tempered Pegboard 1/4" 4x8
FRP Panel 49"x97"
MDF (raw) 3/4" 49"x97"
MDF Beadboard (primed) 1/4" 4x8
Thermoply 1/8" 4x8
Soundboard 1/2" 4x8
Homasote 440 1/2" 4x8

FSC® Certified Plywood

If you are building green or in need of LEED® credits we have FSC® certified plywood available via Special Order. From framing lumber to plywood, we have all the tools in place for FSC® chain-of-custody certification.

Easy to install sill pan flashing from Jamsill Guard shown in rough fit door opening

Jamsill Guard

An easy to install sill pan flashing designed to prevent water damage from window and door leaks. The telescoping design of the Jamsill Guard allows for on-site adjustability to fit rough openings up to 110". Made from high impact injection molded ABS plastic with one-piece corners and sloped weep areas to direct moisture towards the exterior.

Board foot calculator displayed on an iPhone at a job site


Take the guess work out of construction math with these easy to use Construction Calculators. From mobile to desktop these calculators are a handy way to solve construction math problems on the fly for Board Feet, Decking projects & Concrete work. Give them a try, you’ll be amazed.

The Knee Pro Ultra Flex III in use

Knee Pro Ultra Flex III

Designed to offer superior comfort and support. The Knee Pro Ultra Flex III knee pads are built with a strong, flexible plastic cover to take a beating while protecting your knees. Each pad features a non-marking grip strip to prevent marks while the inside of each pad is covered with closed-cell inner foam for exceptional support for your knees.

The workers of the plywood company stand on top of one of their plywood sheets while spanning seven feet over a briefcase
In 1905, one Gustav Carlson, part owner / manager of a small wooden box company decided to laminate wood panels using paint brushes and house jacks for presses. Called “3-ply veneer work”, it wasn’t long before door, cabinet and trunk manufacturers took notice and placed orders. Within two years the company had automatic glue spreaders and a sectional hand press, producing up to 420 panels of plywood a day.
Economy Lumber Company - Lumber & Wood Products Catalog PDF cover

Lumber & Wood Catalog

Our Lumber & Wood Catalog is a handy, downloadable PDF that’s an easy reference guide to the type of Lumber and Wood we inventory, including the sizes and grades. We also list the common Building Materials we stock, the Window & Door Brands we carry and the Contractor Services we offer.

Lumber & Wood Catalog PDF
Economy Lumber Company
Lumber & Wood Catalog

8 pages / 3.3MB PDF

Antique Sargent & Co. hand plane
Since 1935

We’ve been helping builders since 1935

Give us a call or send us an email and tell us what you need. We carry and can source a wide range of lumber and building materials geared for the professional.

☎ Contractor Sales      
Call/Text 510 261-6100

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