TL;DR
Welded wire reinforcement is the formal designation, abbreviated WWR, for engineered grids of cold-worked steel wire manufactured under ASTM A1064 and specified by style callouts such as 6x6-W2.9xW2.9, which encode spacing and wire cross-section. In engineered slabs, tilt-up panels, and pavement it substitutes for rebar mats, placed at a calculated depth with specified lap lengths, and heavier styles carry real structural roles that the light rolls at lumberyards do not.
What it means
Welded wire reinforcement is the formal designation, abbreviated WWR, for engineered grids of cold-worked steel wire manufactured under ASTM A1064 and specified by style callouts such as 6x6-W2.9xW2.9, which encode spacing and wire cross-section. In engineered slabs, tilt-up panels, and pavement it substitutes for rebar mats, placed at a calculated depth with specified lap lengths, and heavier styles carry real structural roles that the light rolls at lumberyards do not. The style designation on structural drawings is the load-bearing fact: substituting a lighter mesh of similar look changes the steel area the design depends on.
Where it sits in the glossary
Welded wire reinforcement is part of the Trade jargon group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
ProFix Directory keeps definitions short on the index page and saves the longer context — Ohio-specific rules, where the term comes from, and which ProFix tools touch it — for these per-term pages so the term is easy to cite and easy to share.
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See also
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