Want to build a new deck, or replace an aging, existing deck? Here’s all you need to know about pressure-treated decking materials from Northeast Building Supply of Bridgeport.

A wood deck can create a beautiful outdoor living space, provide years of use, revitalize an underused area of a yard, and add thousands of dollars in value to your home. But an outdoor deck also needs to be built with the correct pressure-treated decking materials to provide the structural stability to carry significant weight loads and withstand the extreme weather conditions of the Northeast.

Before beginning any project, it’s wise for a homeowner to contact the local building department to determine if a building permit is required, or if there are specific construction guidelines and requirements that need to be followed. The next step is selecting the right pressure-treated decking materials so the deck is solid and lasts for years.

Pressure-treated lumber is treated with different amounts of preservatives so it can be used in specific applications. A label on the end of each piece of lumber designates the specific application. The American Wood Protection Association has named three designations for pressure-treated decking materials.

  • Above Ground: If the lumber is being used more than 6” above the ground, can be easily maintained or replaced, and has proper ventilation and drainage;
  • Ground Contact: If the wood will come into contact with the ground or fresh water, or is constructed in a manner that the wood is not allowed to easily dry;
  • Ground Contact Heavy Duty: If the wood will be exposed to severe weather, will be exposed to wet or damp conditions a majority of the time, or will rarely be allowed to sufficiently dry.

Pressure-treated decking materials are used for outdoor patios, pergolas and other wood-based construction because they offer protection against termite infestation and fungal decay; is more durable and less expensive than cedar, redwood, tropical hardwoods, and composite materials; is easy to use for homeowners and building professionals; and is made from renewable resources.

Builders in the Northeast can also use pressure-treated lumber when framing the outside walls of homes and patios that are likely to be exposed to excess rainfall, severe winds, blowing snow and extreme cold.

Pressure-treated lumber can also be painted and stained, but must be allowed to dry completely before paint or stain can be applied. In many cases, when pressure-treated lumber is purchased, it can be wet or moist to the touch.

Northeast Building Supply of Bridgeport has recently opened a new drive-thru lumber yard where customers can have their pressure-treated decking materials loaded directly into their car, truck or van. The lumber yard is open every day, except Sunday.

Call 203.366.4757 for more information or visit Northeast Building Supply of Bridgeport online at

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