400 Series Heavy Duty Rolling Service Door

The Janus International 400 Series Rolling Service Door delivers strength, versatility, and lasting performance. Available with 3" slats in multiple gauges and profiles, it fits openings up to 40' wide or 30' high and offers Windload and Miami-Dade options for high-wind areas—making it ideal for industrial and commercial use.

STANDARD FEATURES

Enclosed hood
Reduction gear chain hoist
3-piece structural steel guides
Double angle bottom bar with astragal
2-year limited warranty
Guides, bottom bars, and headplates are Envirocron powder coated black at the factory

OPTIONS

Finishes: White, gray or tan topcoat; galvanized; stainless steel; aluminum; custom powder coat.
3" slats: 24-, 22-, 20- or 18-gauge steel; flat, curved or perforated.
Vision panels: 5" x 3/4" cut out, 3" apart, clear Lexan (flat slat only).
Certified options: Windload and Miami-Dade approved for high-wind regions.
Weatherseal: Vinyl weatherseal, brush seal with retainer, or 8" PVC rubber riveted inside the hood.
Pass door: Metal pedestrian door in the curtain, with a swing frame for clear opening.
Envirocron XMR powder coat: Ultradurable polyester powder coat with excellent chemical resistance, outdoor weathering and scratch resistance.

IDEAL APPLICATIONS

Extra protection. Engineered for strength, versatility, and lasting performance, making it ideal for heavy-duty industrial and commercial use, including high-wind regions. The applications video pairs the 300 and 400 Series as the rolling service doors for dependable everyday security.

Manufacturing plants
Warehouses, distribution centers and loading docks
Freight terminals
Agriculture
Auto dealerships and car washes
Commercial and multi-tenant buildings
Education
Fire stations
Government and stadiums
Healthcare
Heavy equipment
High-security openings
Restaurants

Replacing an aging service door instead of repairing it again? Repairing a rolling steel service door may solve today's problem. But replacing it solves tomorrow's. The ROI guide walks through the math.

Compare it with the 400HP and 600 in the 400 vs 400HP vs 600 service door comparison sheet, read the rolling steel door replacement ROI guide, or watch the rolling steel door applications video. Not sure which series fits? Try the door selector tool.

Download Door Sheet

PRODUCT HIGHLIGHTS

Product Type	Steel, stainless steel or aluminum
Model Description	Heavy Duty Rolling Service Door
Models	424 (24-ga), 422 (22-ga), 420 (20-ga), 418 (18-ga), 416A (aluminum), 422S/420S (stainless)
Slat Profile	3" Flat-265 or Curved-288; perforated available
Maximum Size Width x Height	424: 24' x 24' 422/420: 26' x 26' 418: 30' x 30' or 40' x 20' 416A: 16' x 16' 422S/420S: 26' x 26'
Operation	Reduction gear chain hoist standard; crank or electric operator optional
Standard Guides	3-piece structural steel, 3/16" minimum, with removable head stops and 30" service cut-out
Bottom Bar	Double angle with astragal
Finishes	White, gray or tan topcoat; galvanized; stainless #4; aluminum; custom powder coat
Certified Options	FBC and TDI windload; Miami-Dade County impact certification (20' x 30' max, +60/-65 PSF)
Warranty	2-year limited; paint 40-year film integrity / 25-year no-fade

Open Janus rolling steel service door at a warehouse loading entrance

Repair or replace?

Replacing an Aging Service Door Can Pay for Itself

Every repair extends the life of an aging door, and its hidden costs: downtime, labor, energy loss and safety risk. The Janus ROI Guide shows what replacement can return.

A 10-dock warehouse investing $225,000 in new rolling steel doors could see about $93,000 a year in operating benefit: a 2.4-year payback and 41% annual ROI*
Insulated doors on 4 docks could cut HVAC energy use about 12% in a 100,000 sq ft warehouse, worth $12,000 to $25,000 a year*
Rolling steel doors last 25+ years with fewer major repairs, versus replacing lighter-duty doors every 12 to 15 years

*Illustrative examples from the Janus Rolling Steel Door Replacement ROI Guide. Actual results vary based on facility size, climate, usage frequency, labor costs and door specifications.

Get the ROI Guide Request a Quote

Compare

400, 400HP or 600: Which Service Door Fits?

The three Janus rolling service doors side by side, from the Service Door Comparison Sheet.

Compare the Janus rolling service doors
	400 SeriesHeavy Duty Service Door	400HP SeriesHigh Performance Door	600 SeriesInsulated Service Door
Built for	Extra protection	Extra speed	Extra savings
Max size	40' wide or 30' high	14' wide × 20' high	40' × 16' to 28' × 26', by model
Opening speed	Standard	Up to 24" per second	Standard
Standard cycles	25,000 (50,000 or 100,000 optional)	400,000 (600,000 optional)	25,000 (50,000 or 100,000 optional)
Insulation	No	No	R-7.2
Windload / Miami-Dade	Optional	No	Optional
DC motor	No	Yes	Optional
Counterbalance	Springs	Springless barrel	Springs

Applications

Where the 400 Series Works Best

From the Janus Rolling Steel Application Guide.

Agriculture
Auto dealership
Car wash
Commercial/multi-tenant
Education
Fire station
Government
Healthcare
Heavy equipment
High security
Manufacturing
Restaurant
Stadiums

Door Selector Tool

Find the Right Rolling Steel Door in Minutes

Answer eight quick questions about the building, the opening and how the door will be used. The Door Selector shows every Janus rolling steel, commercial sheet and mini door that fits, with specifications, door sheets and a quote link on every result.

Pick the building type and application
Set wind load, fire rating and daily cycles
See every matching door with specs and quote links

Open the Door Selector

SERIES 400

Rolling Steel Series 400 Heavy Duty Rolling Service Door

STANDARD FEATURES

OPTIONS

IDEAL APPLICATIONS

CLEARANCE REQUIREMENTS

DOCUMENTS

PRODUCT HIGHLIGHTS

Replacing an Aging Service Door Can Pay for Itself

400, 400HP or 600: Which Service Door Fits?

Where the 400 Series Works Best

Find the Right Rolling Steel Door in Minutes

See Janus Rolling Steel in Action

RESOURCE

Ready to Spec the 400 Series?