What Does Ground Contact Pressure Treated Wood Mean

Lumber treated to the awpa standards will say ground contact and have the code uc4a displayed and it will have the quality checkmark symbol as well.

What does ground contact pressure treated wood mean.

Micropro ac2 pressure treated wood products are available for above ground ag ground and in ground contact gc and ground contact for critical use gcs applications. Pressure treated lumber ground contact pressure treated lumber 1x10x10 poplar 2x6x10 lumber. Facts about pressure treated lumber some frequently asked questions about pressure treated lumber. The treatment process forces a waterborne preservative deep into the cellular structure of the wood providing long term protection against rot fungal.

The chemicals to which pressure treated wood is exposed can be harmful to both people and the environment making it important to determine if the wood is suitable for above ground usage or ground contact usage. Managing inventory for one type of treated lumber the one most averse to decay saves time and money. The ratings are based on the amount of preservative used to treat the wood. A recent report from spectrum consulting.

What is pressure treated lumber. Pressure treated lumber products such as yellawood brand products are treated in a pressurized cylinder. Deck board 4x4x8 pressure treated 16 ft. Above ground treated wood must be used when lumber is less than 6 from the ground or has poor ventilation must be used for applications where wood is difficult.

Ground contact lumber can be used either above ground or in contact with the ground. The battle lines are drawn dividing how pressurized lumber should go to marketa battle is raging in the treated lumber aisle. Before you purchase pressure treated wood for your project you need to keep in mind what type of project you ll be working on. In the simplest terms it s a battle between above ground lumber and ground contact lumber and whether it makes sense to offer both types or only ground contact by most accounts ground contact is winning.

The extra cost for ground contact about 10 cents per lineal foot is a small consideration say those embracing an all ground contact all the time approach. Has twice the level of chemical retention and protection compared to above ground treated wood. Above ground contact means the wood will not touch or be in the ground and humans will be exposed to it. Is treated wood as strong as regular wood.

Can you paint pressure treated lumber. What is pressure treated lumber.