Ground contact Pressure Treated Lumber Common Measurement (T x W): 5/4-in x 6-in Common Measurement (T x W): 2-in x 6-in Common Measurement (T x W): 2-in x 4-in Common Length Measurement: 8-ft Common Measurement (T x W): 4-in x 4-in Common Measurement (T x W): 2-in x 8-in Pickup Free Delivery Fast Delivery Sort & Filter (1) Ground-contact pressure-treated lumber can be used either above ground or in contact with the ground. Has twice the level of chemical retention and protection compared to above-ground treated wood. Must be used when lumber is less than 6 inches from the ground or has poor ventilation.
Use Properly Treated Wood in Ground Contact Professional Deck Builder
Southern Yellow Pine with a Ground Contact designation is intended to protect your lumber from rotting in applications that have direct contact with soil (either resting on or installed into the ground) and excess moisture (beyond normal rainfall and watering systems). Ground-contact lumber is pressure treated with chemicals to withstand the effects of being close to the ground, in contact with the ground, or exposed to continuous moisture. Ground contact lumber is made for outdoor projects where the wood is exposed to all types of weather or has a high potential for decay. This includes salt water exposure. The best pressure-treated wood for ground contact or within 6″ (150mm) is wood classified as UC4A or UC4B. Often lumber companies will make this easy by tagging the wood as treated for ground contact. Treated at a level of protection to survive the increased fungi and moisture of contact with the ground. Ground-contact lumber is pressure treated with chemicals to withstand the effects of being close to the ground, in contact with the ground and/or exposed to continuous moisture. To meet the AWPA's UC4 standard, ground-contact lumber must be treated with approved chemicals and retention levels.
Ground Contact
Wood Species. Lumber Grade. Features. Pressure treatment chemical. Chemical retention (lb./cu. ft. ) Fastener recommendation. Item Description.. WeatherShield 5/4 in. x 6 in. x 8 ft. Ground Contact Pressure-Treated Premium Southern Yellow Pine Decking Board. 10 ft---Pressure Treated;Stainable;Paintable. Yes. Our tags will always state "above ground only" or "ground contact" so you can be sure you are using the right material for the job. ProWood products containing higher levels of preservatives are available for special purposes such as projects requiring extensive moisture/earthen contact -- including foundations, pole barns, docks and culverts. What Is Ground Contact? As you delve deeper into the world of outdoor woodworking, you'll often come across the term "ground contact." This refers to any part of your wood structure that will be in direct contact with the ground. This could range from the posts of your deck to the bottom edges of a fence. This treated Ground Contact lumber must be used for applications where treated lumber is difficult to maintain, repair or replace.. 4 in. x 4 in. x 10 ft. #2 Pressure-Treated Ground Contact Southern Pine Wood Post. Every piece meets the highest grading standards for strength and appearance. This lumber is pressure treated in order to protect.
How to Treat Wood for Ground Contact The Very Best Methods
Water Sealing the wood Wrapping the Wood with Flashing Membrane Surround with Gravel Even pressure-treated wood decks can become susceptible to rot. This is especially true if one or more parts of the structure are in the ground, where moisture and fungi will collect most of the time. Treated for ground contact use, it is ideal for a variety of applications, including deck, playsets and walkways.
Reasons for Prolonged Wood and Ground Contact There are many instances where you would need to place wood in direct contact with the ground, each of which would need a specific treatment to prevent rot and general degradation. What are these applications though? Ground contact leaves wood susceptible to various risk factors that magnify the material's decay hazard. These include: WHC (Water Holding Capacity) & MC (Moisture Content) The most significant factors are soil moisture contact and water-holding capacity.
WeatherShield 2 in. x 4 in. x 12 ft. 2 Prime CedarTone Ground Contact
On the other hand, ground contact treated lumber is wood that possesses a high chemical retention level, and you can place it directly on or in the ground. Also, ground contact treated wood has better protection against decay and rot. Pressure treated lumber is a common term among woodworkers as you can use it for simple home and DIY projects. It is in these UCs where we find the difference between Ground Contact wood and pressure-treated wood. Below shows the use categories where pressure-treated lumber is used above ground only and Ground Contact. UC1, UC2, UC3A, UC3B are used above ground only. UC4A, UC4B, UC4C are used for ground contact or directly in the ground.
