Rolling steel service doors
Janus rolling steel service doors protect warehouses, loading docks, manufacturing plants and commercial buildings: the 400 Series for heavy duty use and high-wind regions, the 400HP for speed, the 600 for insulation and the 300 for lighter commercial openings.
Talk to your Janus commercial sales rep: (866) 562-2580
Models
Heavy duty, high performance, insulated or light commercial: each series page has the full specs, drawings and documents.
Heavy dutyUp to 40' wide or 30' high · Windload & Miami-Dade options
Strength, versatility and lasting performance for industrial and commercial openings, with 3" slats in multiple gauges and profiles.
High performanceUp to 14' wide × 20' high
Durability, security and smooth operation at up to 24" per second, at a fraction of the cost of high-speed doors.
Insulated40' × 16' to 28' × 26', by model
24 to 18-gauge slats with a 24-gauge back encase a 5/8" injected polyurethane core for thermal efficiency and quieter operation.
CommercialUp to 16' × 16' · 24 or 22-gauge
Commercial-grade galvanized 3" slats with Super Durable polyester paint, for freight terminals and commercial buildings.
Repair or replace?
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.
*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.
Applications
From the Janus Rolling Steel Application Guide.
Door Selector Tool
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.
Key content
GuideWhen to repair, when to replace and how to show the return.
Download
SheetThe 400, 400HP and 600 Series side by side.
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GuideMatch every series to 17 applications, from agriculture to stadiums.
Download
CatalogEvery series, spec table, windload rating and color option.
DownloadCommon questions
Choose the 400 Series for heavy duty use and high-wind regions, the 400HP when speed and cycle life matter most (up to 24" per second and 400,000 cycles standard), and the 600 when the building needs insulation (R-7.2) to hold its temperature. The 300 Series covers lighter commercial openings up to 16' square.
Yes. The 400 and 600 Series offer FBC and TDI windload certified options and Miami-Dade County impact certification at +60/-65 PSF (20' x 30' max). Each certification comes with approved stamped drawings. The 400HP is not offered with windload certification.
Replacement usually makes more sense when a door needs frequent repairs, takes force to open, runs on an outdated operator, no longer seals, creates safety concerns, interrupts daily operations or has passed its expected service life.
In the Janus ROI Guide example, replacing 4 uninsulated dock doors with insulated rolling steel doors in a 100,000 sq ft warehouse could cut HVAC energy use about 12%, worth an estimated $12,000 to $25,000 a year. Actual results vary by facility, climate and usage.
Tell us about the opening and a Janus commercial team member will help you find the right door, fast.
