ASTM WK94069
This ballot is intended to add 0.42” nominal thickness as an alternate panel thickness for backerboards and underlayment.
Developed by Subcommittee: C11.01
Committee: C11
Staff Manager: Jamie Huffnagle
Date Initiated: 03-04-2025
Technical Contact: Sooraj Nair
Copyright/Permissions
Citing ASTM Standards
