Your Options

YOUR OPTIONS

SET THE RECORD STRAIGHT

We want to set the record straight about the changes to the treated wood Use Standards to be published in the American Wood Protection Association’s (AWPA) 2016 Book of Standards. Despite what some companies may be telling you, Above Ground (UC3B) treated wood remains IRC® and IBC® compliant for deck joists, support beams, decking, and railing systems in most deck projects.

There is no requirement to use Ground Contact (UC4A) treated lumber for all structural framing and decking components.

above ground ground contact

SET THE RECORD STRAIGHT

We want to set the record straight about the changes to the treated wood Use Standards to be published in the American Wood Protection Association’s (AWPA) 2016 Book of Standards. Despite what some companies may be telling you, Above Ground (UC3B) treated wood remains IRC® and IBC® compliant for deck joists, support beams, decking, and railing systems in most deck projects.

There is no requirement to use Ground Contact (UC4A) treated lumber for all structural framing and decking components.

above ground ground contact

PROVEN PERFORMANCES

For common deck applications, above ground treated lumber is still one of the best options when used appropriately. Product treated to meet the AWPA standards for above ground use has a history of proven performance while using appropriately less preservative chemical than their ground contact counterpart. This can translate into a more cost-effective option when compared to using material that has all been treated with higher levels of the same preservative chemical for ground contact use.

VIEW AWPA STANDARDS

RESIDENTIAL DECKING INFO

  • The AWPA Use Category System (UCS) continues to allow Above Ground (UC3B) treated wood for applications such as deck joists, support beams, decking, and railings in the most common deck projects.
  • There is NO requirement to use Ground Contact materials for ALL Above Ground decks.
  • Above Ground (UC3B) wood treated to the AWPA standards remains IRC® and IBC® compliant while using the appropriate amount of preservatives required to protect the wood from decay and wood ingesting insects.
  • Wood treated to the AWPA standards is third-party inspected and bears the CheckMark® of Quality on end tags.
  • Viance is not changing its warranty coverage programs on treated wood products, and we will continue to extend the terms of our residential Lifetime Limited Warranty to deck joists, support beams and other decking components that are treated for Above Ground use and used properly.

INTERESTED IN LEARNING MORE?

Explore our Code Compliance page to find out more about courses available to learn about Code Compliant Wood Preservatives, the AWPA Standards and the AWPA’s Use Category System (UCS).

To help ensure you’re getting material that has been treated to the AWPA standards, including being third-party audited, look for the CheckMark of Quality on the end tags of the treated lumber you select. ONLY material that has been treated to these standards is allowed to display this quality CheckMark. Remember, if it doesn’t specifically have the CheckMark of Quality on the tag, you’re not getting material that is treated to the AWPA standards, even if a recognized preservative is used.

Backyard deck

INTERESTED IN LEARNING MORE?

Explore our Code Compliance page to find out more about courses available to learn about Code Compliant Wood Preservatives, the AWPA Standards and the AWPA’s Use Category System (UCS).

To help ensure you’re getting material that has been treated to the AWPA standards, including being third-party audited, look for the CheckMark of Quality on the end tags of the treated lumber you select. ONLY material that has been treated to these standards is allowed to display this quality CheckMark. Remember, if it doesn’t specifically have the CheckMark of Quality on the tag, you’re not getting material that is treated to the AWPA standards, even if a recognized preservative is used.

Backyard deck
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