Flannery’s Metal Fast Mask® is a 1/2″ L Metal that can be used around doors, windows, acoustic ceilings, concrete walls, and anywhere you wish to terminate drywall. The built in tear strip makes it a “self-masking” drywall trim, which allows the installer to skip the masking process. Flannery’s Metal Fast Mask® comes in 10’ lengths.

Flannery was the first company to introduce this special Drywall L Metal to the construction industry. This product was invented over 30 years ago by Flannery’s owner and founder and has become known by many in the industry as “Zipstrip” or “Drywall Zip Strip.” Accept no imitations or substitutions, be sure to request Flannery’s Fast Mask®. Flannery steel trims are manufactured according to standard specifications for accessories of gypsum wallboard and gypsum veneer base (ASTM designation C 1047-85).