Our Galvannealed Honeycomb (GH-Series) is our
most popular door. Constructed of 18 gauge ASTM-525 galvanneal steel
with lockseam edges, it is a durable and cost effective. We stock a
multitude of sizes in 1-3/4" thick, flush faced doors with and
without a 161-cylindrical lock prep and hinge preps. Standard size
widths are 2'-0," 2'-4," 2'-6," 2'-8," 2'-10,"
3'-0," 3'-4," 3'-6," 3'-8" and 4'-0" in both
6'-8" and 7'-0" heights.
Our Galvannealed Honeycomb Seamless
(GHS-Series) is the
same as our GH-Series only the edges have been tackweld with bondo and
ground smooth for a seamless appearance.
Our Galvannealed Polystyrene (GPS-Series) has a
polystyrene core for areas calling for an insulated door.
Galvannealed Ribbed (GR-Series) is reinforced internally
with 22ga vertical steel stiffeners and filled with rockwool insulation
creating a heavy-duty door that is rugged, durable and has superior
endurance while maintaining its adaptability. Use this door where
security or heavy usage are issues.
Our Galvannealed Ribbed Seamless (GRS-Series)
is the same as our GR-Series except that the edges have been
filled with body filler and
ground smooth for a seamless appearance. This door is perfect
where strength and durability are as much an issue as aesthetics.
Galvannealed Temperature Rise (GTR-Series) is
designed to impede and limit heat transmission generated from a
fire. Our temperature rise doors are rated up to 250-degree for 30
minutes on a 90-minute fire-rated door.
Our Galvannealed Lead Lined (GLL-Series) is designed for
use where radiation protection is required such as hospitals and
laboratories. These doors are available with lead thickness ranging
from 1/32" to 1/4".
for access doors? Michbi Doors can provide full spectrum of Karp
access doors and panels to meet your needs.
Michbi also has a hollow metal door that has an STC-35
rating that is designed to resist airborn sound transmission. Using field applied Pemko S88 gasketing, our
STC-35 door is 18 gauge, steel reinforced with a Pemko 420 door bottom