Karp Industries Inc. – Insulated Fire Rated Access Doors for Walls and Ceilings

Model KRP-150FR

The KRP-150FR is insulated and rated by Underwriters Laboratories for 1.5 hour “B” label in walls, and may be used in a 2 hour fire rated wall assembly. Additionally, Warnock Hersey rates the KRP-150FR for 3 hours in ceilings.

Model KRP150

Specifications

Access doors shall be type KRP-150FR

  • Frame and trim shall be 16-gauge steel, trim 1” wide.
  • Door shall be 20-gauge steel, welded pan type filled with 2” thick fire-rated insulation and shall open to 175°, be self-latching with automatic closer and interior latch release.
  • Hinge shall be continuous piano hinge.
  • Latches shall be spring loaded sliding bolt type keyed paddle latch, all keyed alike. Door can be prepared for a Rim Cylinder lock.
  • Finish shall be prime coat of rust inhibitive electrostatic powder, baked grey enamel. Stainless steel shall have No. 4 satin polish finish.

Diagrams and Model Sizes

KRP150 specs

Model KRP-350FR

KRP 350FR

The KRP-350FR is insulated and rated by Underwriters Laboratories for 1.5 hour “B” label in walls, and may be used in a 2 hour fire rated wall assembly. Additionally, Warnock Hersey rates the KRP-350FR for 3 hours in ceilings.

The KRP-350FR has a textured frame and bead so drywall joint compound can be applied in sufficient thickness to conceal the flange.

Specifications

Access doors shall be type KRP-350FR

  • Frame shall be 16-gauge steel, surrounded by galvanized drywall bead.
  • Door shall be 20-gauge steel, welded pan type filled with 2” thick fire-rated insulation and shall open to 175°, be self-latching with automatic closer and interior latch release.
  • Hinge shall be continuous piano hinge.
  • Latches shall be spring loaded sliding bolt type keyed paddle latch, all keyed alike. Door can be prepared for a Rim Cylinder lock.
  • Finish shall be prime coat of rust inhibitive electrostatic powder, baked grey enamel. Stainless steel shall have No. 4 satin polish finish.

Diagrams and Model Sizes

KRP350 specs
Door Size
Size
Wall
Opening
# of Latches
Shipping Wt.
Lbs.
KRP-150FR
Shipping Wt.
Lbs.
KRP-350FR
8 x 8 8 3/8 x 8 3/8 1 6.3 6.1
12 x 12* 12 3/8 x 12 3/8 1 9.7 9.3
14 x 14 14 3/8 x 14 3/8 1 12.7 12.2
16 x 16* 16 3/8 x 16 3/8 1 14.1 13.6
18 x 18* 18 3/8 x 18 3/8 1 18.9 18.2
24 x 12 24 3/8 x 12 3/8 1 15.5 14.9
22 x 22 22 3/8 x 22 3/8 1 24.0 23.5
24 x 24* 24 3/8 x 24 3/8 1 26.7 25.7
30 x 22 30 3/8 x 22 3/8 1 27.8 26.8
30 x 24 30 3/8 x 24 3/8 1 32.2 31.0
30 x 30** 30 3/8 x 30 3/8 1 37.7 36.3
32 x 32** 32 3/8 x 32 3/8 1 41.3 39.8
36 x 22 36 3/8 x 22 3/8 2 34.4 33.1
36 x 24* 36 3/8 x 24 3/8 2 40.2 38.7
36 x 36** 36 3/8 x 36 3/8 2 52.0 50.1
48 x 24** 48 3/8 x 24 3/8 2 48.9 47.1
48 x 36** 48 3/8 x 36 3/8 2 62.0 59.7
48 x 48** 48 3/8 x 48 3/8 2 89.0 85.7

The largest size available for ceiling installation is 36” x 24”.

* These sizes also standard in stainless steel.