Redwood Empire carries a selection of treated lumber. During the pressure-treated process, the lumber is put in a cylinder that is filled with a liquid preservative. The cylinder is locked and the pressure is raised inside the cylinder forcing the preservative into the wood. The result is a stronger, more disease or rot resistant piece of lumber for your project. 

Pressure Treated (PT)
Redwood Empire carries a wide variety of dimensions of Doug Fir and Hem Fir pressure-treated. Contact one of our sales representatives to get your quote.

When working with Pressure-treated lumber, always use gloves and clean up the sawdust and debris when finished. Do not use pressure-treated lumber in areas that will come in contact with food preparation or for the storage of food. We offer several choices in the types of preservative used in pressure-treated lumber:

This is an arsenic free preservative. ACQ lumber combines tan Alkaline, Quat and 100% recycled copper to create an environmentally advanced wood preservative. This is a new preservative that is considered safe for playground equipment and garden areas. Available in green or cedartone color.

CA :
Wolman® E preservative (CA) is a preservative that contains copper and azole. The fact that it is arsenic free, makes it easier on the environment. It provides against decay and termites. This lumber is great for patio, walkways and decks. Available in green or cedartone color.

Chemonite® (ACZA) treated wood contains arsenic as an active ingredient to fight insect attack and decay on Doug Fir. This is used when strength is a major consideration. From 2x4 to 6x6, we stock it. Call us with your dimensions.

is processed for use above the ground. Tests have shown that when this lumber is used, the flame spread is slower and smoke developing is less dense. The structure also retains its strength longer during a fire. This also has some resistance to decay and termites when used above ground.




Pressure Treated lumber and plywood often holds its structural integrity 10-20 times longer than untreated lumber.



© 2003 Redwood Empire, a Division of Pacific States Industries, Inc.
Wolman® E, Chemonite®, and Pyro-Guard® are registered trademarks of their respective companies.