Treated Lumber

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Treated Lumber

Treated lumber from Armstrong Lumber is a versatile building material that offers numerous uses, benefits, and types. Choosing the right treated lumber for your project requires considering specific factors such as treatment type and intended application, and Armstrong Lumber is here to help.

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Uses of Treated Lumber

Treated lumber is commonly used in outdoor construction projects due to its ability to resist decay and insect damage. It is ideal for applications such as deck building, fencing, landscaping, and structural framing. Treated lumber is also suitable for projects that require contact with the ground or exposure to moisture.

Benefits of Treated Lumber

There are several benefits to using treated lumber for your building and DIY projects in Corpus Christi. First and foremost, it provides enhanced durability and longevity compared to untreated wood. The treatment process involves impregnating the wood with preservatives, protecting it from rot, decay, and termite infestation. Treated lumber also offers improved weather resistance and can withstand harsh environmental conditions. Additionally, using treated lumber reduces the need for constant maintenance and replacement, saving both time and money in the long run.


Types of Treated Lumber

Different types of treated lumber are available with varying levels of protection and suitability for different applications. The most common types include:

Above-Ground Contact (AG): This type of treated lumber is designed for applications that are above the ground and not in direct contact with the soil. It is suitable for projects such as decks and fences.

Ground Contact (GC): GC-treated lumber is specifically formulated to withstand prolonged exposure to soil and moisture. It is recommended for projects that require direct contact with the ground, such as landscaping timbers or retaining walls.

Marine Treated (MCA): This type of treated lumber is specially formulated to resist fungal decay and damage caused by marine organisms. It is commonly used in applications such as docks, piers, and seawalls.

Tips to Choose Treated Lumber

When choosing treated lumber, it is crucial to consider the following factors:

Treatment Type:

Different treatment processes provide varying levels of protection. Common types of treatment include micronized copper azole (MCA), alkaline copper quat (ACQ), or copper azole.

Intended Application:

Determine the specific requirements of your project. Consider whether the lumber will be in contact with the ground or water, the expected exposure to the elements, and the desired lifespan of the structure.


Evaluate the level of maintenance you are willing to commit to. Some treated lumber may require periodic maintenance, such as reapplying a sealant or preservative, to ensure its longevity.


Consider your budgetary constraints when selecting treated lumber. Higher levels of protection and durability often come with a higher price tag.


Look for treated lumber that is certified by reputable organizations, such as the Forest Stewardship Council (FSC), to ensure responsible sourcing and minimal environmental impact.


Treated lumber from Armstrong Lumber is a reliable and durable option for various outdoor construction projects. Its ability to resist decay, insects, and adverse weather conditions provides long-lasting performance. By considering factors such as treatment type, intended application, maintenance requirements, budget, and sustainability, you can choose the right type of treated lumber to meet your specific project needs. Here at our local lumber store, we offer many different types of lumber to meet your needs, including treated lumber. Our experts are here to help assist you. We can answer questions and get you pointed in the right direction. Stop by our building supply store in Corpus Christi today!

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