North Central Door presents the popular original smooth ribbed overhead door. Nothing matches the strength and stability of its 24-gauge galvanized steel sections with micro ribs. Optional R-6.7 Polystyrene insulation protects your business environment from extreme temperature conditions. Thermal or single pane windows are also available. Every door is accompanied with our ten-year limited warranty against rust and one-year warranty against defects.

FEATURES
24-Gauge Smooth Ribbed Steel Doors with or without Optional Insulation

1. Tongue and Groove section joints create a weather resistant seal against rain, snow and wind.
2. Extra-strong 24-gauge embossed hot-dipped galvanized steel. The pre-finished exterior and interior are then coated with a baked-on polyester primer and acrylic finish.
3. The 18-gauge hot-dipped galvanized end and center stiles are mechanically fastened for strength and a neat appearance. Absolutely no welds to rust.
4. Our tough “U”-shaped bottom weather-seal helps protect against the elements.

• 14-gauge galvanized hinges and interior slide lock are standard.
• Ball bearing steel rollers ensure long life operation.

OPTIONAL ITEMS

• Our optional Polystyrene insulation reduces heat loss (“R” value of 6.7) and features a laminated
  High Impact Thermal Styrene (HITS) backer.
• Windows are available in single or thermal pane glass in either 24” x 12” or 17” x 12” * sizes,
  installed in any section.
• Exhaust ports can be installed in any section.
• Our Special Headroom Track is also available.
  
  *17” x 12” windows available in insulated doors only
  

STYLE GUIDE

Color(s)

TRACK REQUIREMENTS

	HEADROOM Add 2 1⁄2“ for electric operator		SIDE ROOM		DEPTH INTO ROOM
	2" Track	3" Track	2" Track	3" Track	Manual	Motor
Standard Lift	16"	17”	41/2"	5 1/2"	Door Height + 20"	Door Height + 50"
High Lift	Desired Lift + 12”	Desired Lift + 30”	41/2"	5 1/2"	Door Height less High lift + 24"	If side mounted is used - 24" one side
Low Headroom	7”	7”	6”	9”	Door Height + 30"	Door Height + 50"
Low Headroom	2x Door Height + 12"	2x Door Height + 12"	41/2"	5 1/2"	18" into Room	Only side mounted can be used - 24" on one side