MDI Supply.com carries a full line of commercial quality HM doors and frames. Our frames are standard at 16 gauge A40 galv. Fire labeling available is 45 min, 90 min (some restrictions do apply) on our knock-down frames. Typical MDI HM frames come with a double rabbet profile x 2" integral trim. In addition, MDI knock-down frames are standard with a compression wall anchor, sometimes referred to as a "pressure-fit anchor" or a "tension screw anchor." Fire labeled frames by MDI come standard as surface closer reinforced.
The 3 3/4 inch throat KD frame is typically used to wrap around an existing wall. Typicall wall construction is 2 x 3 Metal Stud (2 1/2 inch wide stud) with 5/8 inch sheet rock on each side.
If you don't see a frame you need please contact our customer service department for a custom tailored quotation on your project. Custom engineered doors and frames are available.