Serving Bay Area Building Professionals Since 1898

650 588-5711

Monday - Friday   6:30 am - 5 pm
Saturday   8:00 am - 3:00 pm

Modern outdoor living space with a deck built from Ipe hardwood decking

Wood & Composite Decking

Redwood, Cedar, Ipe, Trex, TimberTech AZEK

We carry a wide range of wood decking and eco-friendly composite decking, plus everything you need to build the deck of your dreams from the ground up. Our selection of wood decking includes three grades of Redwood, Cedar and IPE hardwood deck boards. And if you are looking for a low-maintenance alternative to wood we carry Trex Transcend and AZEK Vintage Collection grooved deck boards in an wide assortment of styles and colors.

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Wood Decking

Wood is still the homeowners choice for building a deck, it’s naturally strong and easy to use with common woodworking tools. Plus wood weathers naturally, requires minimal maintenance and is a sustainable product throughout its life cycle. We carry Redwood, Cedar and Ipe decking.

Selection of select heart and construction heart Redwood decking

Redwood Decking

Redwood has long been a good choice for building a deck where durability, dimensional stability and resistance to insects and decay cannot be compromised. Our Redwood is harvested from sustainably-managed forestland along Northern California’s coast. Fine-milled close to the source, this Redwood tends to be a better grade than what’s available at any home improvement center. Redwood is fire-resistant and there is no other decking material that comes close to the rich, authentic beauty found in Redwood.

Redwood Decking
Select Heart 2x4 to 2x12 8' to 20'
Select Heart B Decking 2x4 to 2x12 12', 16', 20'
Construction Heart 2x6 8' to 20'
Additional grades and sizes available via special order.
Cedar 2x6 decking

Cedar Decking

Nothing can compare to the natural warmth and charm of a wood deck. Our Western Red Cedar 2x6 decking is tight grained with sound tight knots for character. Cedar is a very durable wood for building a deck and is resistant to rot, decay and insect attack. Cedar is also pitch and resin free so your new deck will accept a wide range of finishes from protective stains to solid colors and semi-transparents. If left alone Cedar will turn a beautiful silvery grey.

Western Red Cedar Decking
Cedar Decking KD STK S4S 2x6 16', 20'
STK = Select Tight Knot
S4S = Surfaced Four Sides
The tight grain and rich brown color with amber hues is visible in these Ipe hardwood decking boards

Ipe Hardwood Decking

Ipe (pronounced E-pay) is a sustainable tropical wood harvested from one of the tallest trees in the Amazon Region. Ipe is a very dense wood that is resistant to fungal decay and termites. The tight grain can be wavy or straight and Ipe’s rich brown color contains red and amber hues. This is a low-maintenance hardwood decking material that because of its density, holds up very well under traffic and heavy use. Ipe hardwood decking has a Class A fire-rating, making it a good choice for use in high-fire areas or building in Wildland-Urban Interface (WUI) zones.

Ipe Decking
1x6 and 5/4x6 8' to 20' random lengths
Prefinished or grooved available via special order.

Choosing the right decking material

Deck styles and sizes are as varied as the homes they are attached to, and choosing the right decking material is really a matter of personal choice. However it is important to keep in mind your usage, the deck location and the type of weather your deck will be exposed to, as well as the overall design and aesthetic look you are trying to achieve. Will your deck be in the sun or shade, as wood tends to be cooler under bare feet. Will your deck be exposed to lots of rain or snow, as there are many products that provide added protection from the weather. Whatever you choose, let us help you to create a beautiful and durable outdoor space you’ll enjoy for years to come.



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Composite Decking

Traditionally decks have been made of Redwood, but with the advent of green building came the manufacture of composite decking materials. These low-maintenance alternatives to wood come in a wide range of colors, textures and grain patterns that require no painting or staining. All have matching components available, like railing and lighting systems to complete and enhance your outdoor living space.

Close up view of Trex Transcend composite decking with rock wall and stairs
Trex Transcend Premium Tropicals decking in Havana Gold, Spiced Rum, Island Mist and Lava Rock

Trex Transcend

The ultimate expression of luxury and function can be found in Trex Transcend decking. The low-maintenance protective shell features a distinctive wood grain with unrivaled fade, stain, scratch and mold resistance. Made from over 95% recycled material using an eco-friendly manufacturing process, Trex will never lose its color or performance in sun, rain or snow.

At South City Lumber we carry everything you need to build your deck, including hidden fasteners and saw blades to cut composite decking. We stock Trex Transcend in five popular colors.

Trex Transcend
1x6 Grooved-Edge Board 16', 20'
Premium Tropicals: Havana Gold, Spiced Rum, Island Mist, Lava Rock
Classic Earth Tones: Fire Pit
Backed by the Trex 25-Year Limited Residential Warranty.
Additional colors, styles or square-edge boards are available via Special Order.
Roof deck built with AZEK Vintage Collection in Weathered Teak
TimberTech AZEK Vintage Collection deck samples in Mahogany, Weathered Teak and Coastline

AZEK Vintage Collection

The AZEK Vintage Collection offers a wide range of designer choices in a premium high-performance decking that is engineered to last. These capped PVC deck planks are top of the line in quality and beauty, and will stay true over time. You’ll find the subtle to dramatic variegated color combinations are unique to each AZEK deck board for the most natural enhanced hardwood look.

AZEK Vintage Collection
1x6 Grooved Board 16', 20'
Mahogany, Weathered Teak, Coastline.
Backed by TimberTech AZEK Limited Lifetime Product Warranty and 50-Year Limited Fade & Stain Warranty.
Additional colors and square-shoulder boards are available via Special Order.
Low-maintenance multi-level composite deck with covered eating area features TimberTech Legacy Collection in Ashwood


TimberTech offers a complete line of low-maintenance composite decking in a variety of materials, including traditional wood-plastic composite, capped composite, and PVC decking. Available in a wide variety of styles and color choices specially designed to fit your lifestyle and design preferences.
TimberTech AZEK, Pro and Edge
Learn more at

Twelve men and a team of horses haul a giant log in this vintage logging photo


Antique Sargent & Co. hand plane

Customer Services

Loading customer's pickup truck


If you are a contractor, we have a truckload of services designed especially for you. From accounts, millwork and fabrication, to scheduled deliveries, custom orders, and tool repair. We know how valuable your time is and we are here to help speed things along.

South City Lumber & Supply lumber delivery truck

Lumber Delivery

From small orders to an entire truck load, if you need it delivered or don’t have a big enough trunk, let us know. We have a fleet of trucks and offer curbside delivery directly to your jobsite. Prices vary based on distance, and quotes are available from your salesperson when you place your order.

Custom wood door


We offer complete milling and fabrication services through our Lumber Desk. If you need to match a moulding pattern or historical siding for a renovation, or you’re creating something totally new for a custom home, our experienced professionals are here to help with your project and millwork specifications.

Can’t find what you are looking for?

Give us a call or send us an email – we carry a wide variety of lumber and wood products, building materials and supply.

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650 588-5711

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