Hollow Metal

R & S offers new installations and repair service for hollow metal doors. We also supply contractor packages for installation by others. Contact us today for a free estimate or for more detailed information on our Hollow Metal Doors.

Our Hollow Metal Doors and Door Frames are an industry standard combination of strength and durability at an economical value. WE ALSO OFFER FIRE RATED DOORS!

What to expect with our hollow metal door packages…

  • Factory prepped to receive hardware and vision panels.
  • Available in 16 GA or 18 GA.
  • Welded or knock down door frames
  • Gray primer coat paint.
  • Constructed in flush or stile and rail with an option of honeycomb core, urethane foam core or vertical steel stiffened core.


Mesker Door

Mesker Door offers a full line of hollow metal doors in face sheet gauges ranging from 20 to 14. Doors are typically made of cold rolled steel or galvanized steel. All are standard insulated with fully bonded, durable polystyrene cores (urethane, honeycomb and fiberboard are also available).

N Series Details:

CLOSER REINFORCEMENT: Every N Series door is furnished with a closer reinforcement box.

EXTRA LONG LIFE: The key to the N-Series sag resistance is the extra long 3/16 hinge reinforcement.

YOUR CHOICE OF FOUR CORES: Polystyrene, Honeycomb, Urethane, and Fiberboard.

LOCK REINFORCEMENT: Thye N Series Door can be prepared for Govt. 161 cylindrical locks with a 2 3/4 backset (ANSI A115.2 lock front), or a Govt. 86 mortise lock with a 2 3/4 backset (ANSI A115.1 lock front.) N Series Doors are also available prepped for sectional trim, panic and electric devices.

HEMMED EDGE: The hemmed edge of the N Series door offers an extra smooth transition between faces.

UNIVERSAL HANDING: N Series Doors fit both right and left hand openings, due to the double hole pattern and reversible filler plate

Also Available From Mesker:

Steel Stiffened
Wood grain
14 Gauge
Bullet Resistant



Republic offers a complete line of standard and specialty hollow metal doors to fit your architectural needs.

All Republic doors are available in 20, 18, 16, & 14 gauge cold rolled and galvanized steel.
All doors come with a 3/4″ cell honeycomb core as standard, providing every door with a smoother, flatter, and stronger door.

Republic honeycomb doors are available in a complete range of fire ratings (20 minute up to 3 hours) and are certified under both Underwriters Laboratories and Warnock Hersey/ITS.

Doors are manufactured from stretcher level quality steel and are thoroughly cleaned and phosphatized inside and out offering excellent corrosion resistance and paint adhesion.

Optional Door Cores 



Polystyrene (Solid Core) – 1 lb density expanded polystyrene per ASTM 578 U-Factor of .13

Polyurethane (Solid Core) – 2 lf density polyurethane per ASTM C591 U-Factor of .10

Steel Stiffened – Vertical hat shaped stiffeners of 20, 18, and 16 gauge with mineral wool or fiberglass batting between stiffeners. Stiffeners are welded maximum of 6″ apart and on 5″ centers.

Temperature Rise/Mineral Fiberboard – Mineral fiberboard capable of withstanding a maximum of 250° temperature rise in 30 minutes. U-Factor of .26

Also Available From Republic:

DM Series Flush Doors
DL Series Flush Doors
DE Series Flush Doors
SL Series Embossed Panel Doors
DM & DL Series UNIFIT Replacement Doors