Understanding the End Tag
Each piece of ProWood® lumber carries an end tag which has the following essential information for any builder or do-it-yourselfer:
- The preservative used
- The appropriate end use (i.e., above ground or ground contact)
- The quality standards it meets
- Safe handling information
Look for the ProWood end tag.
- Description of use
- Warranty statement
- 'Double-Box' symbol - required for building code compliance; indicates both the standard authority and the third party inspection agencys
- Environmental SCS certification based on Life Cycle Assessment
- Code for use/exposure category
- ICC-ES report number (treatment standard)
- Preservative system
- Details on where to find safe handling, fastener, and warranty information
Meeting the highest quality standards.
ProWood's end tag shows which products are treated in accordance with ESR or AWPA standards and is in compliance with model building code requirements.
The International Code Council (ICC), which develops model building codes for use nationwide, requires wood product manufacturers to not only conduct in-house quality control measures but also subscribe to an independent inspection agency that verifies the wood has been treated in accordance with applicable standards. That's why the ProWood end tag refers to both the standard (e.g., ESR 2240 (pdf – 309 KB), ESR 1980 (pdf – 257 KB) and ESR 1721 (pdf – 107 KB)) and the third-party inspection (e.g., "Monitored by Timber Products Inspection").
The ICC-ES has deemed ProWood to be code-compliant with the details listed under ESR 2240 (pdf – 309 KB), ESR 1980 (pdf – 257 KB) or ESR 1721 (pdf – 107 KB) reports.
For an independent viewpoint on determining whether any treated wood is properly treated, see the USDA's Forest Products Laboratory TechLine on new wood treatments.
Ground Contact Standards