What Does the Tag Stapled to My ProWood Treated Lumber Mean?
Each piece of ProWood® Professional Grade lumber carries an end tag which has essential information for any builder or do-it-yourselfer, including:
The preservative used
The appropriate end use (i.e., above ground or ground contact)
The quality standards it meets
Safe handling information
Description of use.
Code report for treatment.
Code for use/exposure category (see Description of Use).
Third party quality inspection (assures product has passed retention and penetration test).
When starting a building project, it's important to know how and where your treated lumber will be used. See the list of "Use Categories" below (as defined by AWPA). A brief description of the Use Categories is shown after the Use Code. Highlighted in bold are three of the most common residential uses for pressure treated lumber.
UC1 Interior Dry
UC2 Interior Damp
UC3A Exterior Above Ground, Coated with Rapid Water Runoff
UC3B Exterior Above Ground, Uncoated or Poor Water Runoff
UC4A Ground Contact, General Use
UC4B Ground Contact, Heavy Duty
UC4C Ground Contact, Extreme Duty
UC5A Marine Use, Northern Waters (Salt or Brackish Water)
UC5B Marine Use, Central Waters (Salt or Brackish Water)
UC5C Marine Use, Southern Waters (Salt or Brackish Water)
UCFA Interior Above Ground Fire Protection
UCFB Exterior Above Ground Fire Protection
ProWood is the industry standard for treated lumber and outdoor products and features:
• The largest selection of treated products
• The latest advancements in treating technology
• A lifetime limited warranty against termites and rot
For professional grade treatment, look for the ProWood