Jackson Lumber Catalog

Commercial Rough Opening & Handing

LUMBER & MILLWORK

Hollow Metal Frames: Knocked Down Drywall Frame

Width: Height:

Nominal Opening Size + 2" Nominal Opening Size + 1"

Welded Frame in Block or Concrete Wall 2" Head Height

Width: Height:

Nominal Opening Size + 4 3/8" Nominal Opening Size + 2 3/8"

4" Head Height

Width: Height:

Nominal Opening Size + 4 3/8" Nominal Opening Size + 4 3/8"

March 2018

131