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Ready Built Steel Buildings is proud to carry an extensive line of Janus commercial series doors. Our commercial roll up doors are ideal for a myriad of applications like securing warehouse facilities, factory loading dock areas, agricultural out buildings...perhaps even your back yard shop. To simplify your door shopping experience, we provide a general description of the door and a detailed list of features. We start out with information for the very economical Model 1000 door. For subsequent models, we only list the features or options that are either an addition to or enhancments of those described for this base door. To find our more about differences between these models, click on the individual links below to look over the shop drawings, installation instructions and data sheets. Review the features and benefits of each door. Take your time -- why get more door than you need or pay more than you need to pay? We provide all of the information needed to make an informed, money saving decision. Prices Starting At: $406.25 (excludes added options, freight and handling). Available Options Include: Header Seal, Top Draft Seal, Gliderol Roll-A-Matic Operator and Reduced Drive Chain Hoist (for doors not having RDCH as a standard item)
Model 1000 Features: Click these links to view Shop Drawings and Installation Instructions for the Model 1000 door. Prices Starting At: $712.50 (excludes added options, freight and handling). Please Note: On following doors, the "i" will denote an insulated version of that door without a separate description. Model 1100 Commercial Door Tough, durable, wide, heay-duty nylon stripping controls curtain stretch and works in conjunction with the vinyl guide strip to reduce wear and deaden sound. The slide bolt lock assembly affixed to the bottom bar at each end of the door curtain fastens through the guide to securely keep the door locked and in the down position. Padlocks can be attached to the slide to further secure the door. Bulb astragal is standard on all doors. The flat door stop bar makes installation quicker. Simpley slide through the holder on the guide and affix with a fastener. Click these links to view Shop Drawings (for wind rated 1100 up to 8'8" x 14'0"), Shop Drawings (for wind rated 1100 up to 10'0" x 14'0")and Installation Instructions for the Model 1100 door. Model 1950 Features (includes features of Model 1000 door, and/or: The 26 gauge corrugated door curtain is manufactured from full hard galvanized grade 80 steel and coated with Silicone Polyester paint that is backed by a 25 year film integrity and no-fade limited paint warranty. Available in sizes up to 12'0" x 14'0" and in 19 colors. The 26 gauge corrugated door curtain is manufactured from full hard galvanized grade 80 steel and coated with Super Durable Polyester paint that is backed by a 25 year film integrity and no-fade limited paint warranty. Available in sizes up to 12'0" x 18'0" and in 19 colors. Model 2500 Features (includes features of previous models, and/or: The 26 gauge corrugated door curtain is manufactured from full hard galvanized grade 80 steel and coated with Super Durable Polyester paint that is backed by a 25 year film integrity and no-fade limited paint warranty. Available in sizes up to 18'0" x 18'0" and in 19 colors. Model 3000 Features (includes features of previous models, and/or: The 26 gauge corrugated door curtain is manufactured from full hard galvanized grade 80 steel and coated with Super Durable Polyester paint that is backed by a 25 year film integrity and no-fade limited paint warranty. Available in sizes up to 20'0" x 18'0" and in 19 colors. Model 3100 Features (includes features of previous models, and/or: The 26 gauge corrugated door curtain is manufactured from full hard galvanized grade 80 steel and coated with Super Durable Polyester paint that is backed by a 25 year film integrity and no-fade limited paint warranty. Independently tested in accordance with ASTM-330, the series 3100 meets requirement of Standard Building Code, International Building Code and Florida Building Code. Design wind load is rated +36 PSF and -41 PSF for opening widths up to 12'0" and +35 PSF and -38 PSF for opening widths over 12'0" through 16'0". Available in sizes up to 16'0" x 18'0" and in 19 colors.
Model 1000 Commercial Door
The bar has once again been raised with the Model 1000 commercial door. The Pre-Assembled Industrial Door (PAID) features the traditional dependability and sturdiness of a commercial door, while significantly saving time and money during installation. How? The push-up operation comes with brackets and tensioner pre-assembled. The reduced drive chain hoist operation is delivered with brackets, tensioner, gears and chain drive pre-assembled on the door. In addition, door and guides install to the jamb as a single assembly. Pre-assembly from the factory means less time spent on installation, therefore saving you money. Backed by a one year warranty, our PAID Model 1000 is a solid and economical investment for commercial/industrial usage.
A note about roll up door colors: All roll up doors are Satin White on the inside. When you select a color, you are only selecting the exterior color; that is, the color that will be visible from the outside of your building or mini storage space. This is an industry standard for roll up doors.

The 26 gauge corrugated door curtain is manufactured from full hard galvanized grade 80 steel and coated with Super Durable Polyester paint that is backed by a 40 year film integrity and a 25 year no-fade limited paint warranty. Available in sizes up to 12'0" x 14'0" and in 19 different colors.

Grease-filled, shielded radial ball bearings at the drums provide longevity and smooth operation. Drums are embossed for rigidity.
The Janus ratchet tensioning device supplied as standard equipment on our door offers a simpler method of tensioning, while more accurately fine tuning all the springs on the door at the same time. There is no extra hardware required. Eight different positions on the tension wheel allow one to perfectly balance the door every time. There are no pins required to hold the tension on the spring. You simply just click it.
A 4:1 reduced drive chain hoist offers smoother operation on doors over 10'0" wide or 10'0" tall. Chain hoist comes pre-assembled on door.

Factory-installed galvanized reinforced 12 gauge brackets are designed to easily snap onto the guides, reducing installation time.
Roll-A-Matic electric operators are internally enclosed in the barrel to provide quiet and reliable operation. The operator's design is compatible with transmitters and receivers, pneumatic sensing edges and other electric operation accessories. Right side operation only. Auxiliary operator hand chain not available.

Insulation is made of foil-backed, dual-layer polyethylene air-bubble insulation secured in place with a strong adhesive and joined by mylar film to provide an R-value of 4.
The top draft stop mounted to the door curtain provides a 2-3/4" weather seal between the door and the header.

The header seal attaches directly to the header and extends up to 5" to the door curtain to form an effective barrier from environmental elements.
Universal mount 2" deep 16 gauge steel guides require no pre-installation modifications for wood, steel, concrete or masonry block applications. Guides have a deeper engagement, which allows the curtain to stay in place under more severe wind conditions.
Click this Data Sheet link to view a data sheet for the Model 1000 and Model 1000i doors. This data sheet provides data such as side and headroom clearance requirements.
Model 1000i Commercial Door
The Model 1000i is an insulated version of the Model 1000 door. It is insulated to a value of R-4 by two layers of heavy duty polyethylene air-bubble cushioning sandwiched between two layers of aluminum mylar film. Click the image to right for a larger view of this insulation backing. 
Additional available options include: Steel mounting plates.
Model 1100 Features (includes features of Model 1000 door, and/or:
The 26 gauge corrugated door curtain is manufactured from full hard galvanized ASTM A-653 grade 80 steel and coated with Super Durable Polyester paint that is backed by a 40 year film integrity and a 25 year no-fade limited paint warranty. 12 gauge wind locks are attached to both ends of the curtain. The Model 1100 has be independently tested in accordance with ASTM E-330 to safely resist wind loads, rated +24.4 PSF and -27.0 PSF for opening with through 8'8", and +19.4 PSF and -22.7 PSF for opening widths over 8'8" through 10'0". The Model 1100 has also been designed in accordance with ASCE 7-02 and the Florida Building Code 2004 with 2006 Supplement and the International Building Code 2003. Available in sizes up to 10'0" x 14'0" and in 19 colors.


9-1/2" diameter drums allow for lower headroom requirements. An enclosed barrel houses the dead axle assembly and protects the factory-lubricated springs from direct contact with environmental elements. The inherent strength provided by the spiral barrel minimizes axle deflection, providing smoother operation. Because the curtain is attached by screws and not seamed to the barrel, cost-effective replacement of either independent assembly is quick and easy.
Click this Data Sheet link to view a data sheet for the Model 1100 and Model 1100i doors. This data sheet provides data such as side and headroom clearance requirements.
Model 1950 and 1950i Commercial Door
The value engineered model 1950 is the first of the next generation of rolling sheet doors to feature a substantial economical advantage. By elevating industry standards, to maintaining the highest quality and value, this door features innovative components taht make the Model 1950 more versatile, flexible and easier to instal and service in a variety of field applications.
Prices for Model 1950 Starting At: $425.00 (excludes added options, freight and handling).
Prices for Model 1950i Starting At: $765.00 (excludes added options, freight and handling).

9-1/2" diameter drums allow for lower headroom requirements. An enclosed barrel houses the dead axle assembly and protects the factory-lubricated springs from direct contact with environmental elements. The inherent strength provided by the spiral barrel minimizes axle deflection, providing smoother operation. Because the curtain is attached by screws and not seamed to the barrel, cost-effective replacement of either independent assembly is quick and easy.

Grease-filled, shielded radial ball bearings at the drums provide longevity and smooth operation. Factory installed insert nuts help make the installation of the chain hoistand operator sprocket easier.

A cam-action spring tension holding device allows quick, easy and equal adjustment of the tension on all springs simultaneously from one end of the door. The cam tensioner bites into the axle helping to eliminate the unwanted spinning of the axle during the initial spring loading or adjustment process.
A reduced drive chain hoist allows for smoother operation on doors over 10'0" wide or 10'0" tall.

Mounting brackets are engineered and designed with deep embossing for strength, and are independently tested to withstand more than 1,200 pounds per pair. The installation-friendly mounting brackets feature safe rounded edges and slots that allow for easy vertical adjustments as well as various installation preferences.

Convenient spring tension adjustment is accomodated by inserting a common 3/8" ratchet tool into the end of the drive shaft and rotating. Initial loading of the door tension can be easily accomplished with a ratchet without the difficulty of spinning the door. This innovation also allows the tension to be easily measure and managed with a torque wrench.

Vision panels provide outside visibility and allow light entry through the 5" x 17" panel. Constructed of a translucent polycarbonate panel inside a glossy white 20 gauge frame, the panels create no interference with the operaion of the door. The location and number of vision panels are limited by the door size. 
The electrical operation kit includes a sprocket and torque struts that equip eht door for wall mounted jackshaft electric operators and can be furnished in lieu of reduced drive chain hoist when provided.
Click these links to view Shop Drawings and Installation Instructions for the Model 1950 door.
Click this Data Sheet link to view a data sheet for the Model 1950 and Model 1950i doors. This data sheet provides data such as side and headroom clearance requirements.
Model 2000 and 2000i Commercial Door
The model 2000 is the traditional rolling sheet door. Time-honored and established, it is dependable and sturdy. Used in a variety of field applications, it provides an economical alternative to sectional or slat doors. Installation is quick and the cam action device allows for easy adjustment of the springs simultaneously. Backed by a one year warranty, the model 2000 is a solid investment for commercial door usage.
Prices for Model 2000 Starting At: $460.00 (excludes added options, freight and handling).
Prices for Model 2000i Starting At: $800.00 (excludes added options, freight and handling).
12" diameter drums allow for lower headroom requirements. An enclosed barrel houses the dead axle assembly and protects the factory-lubricated springs from direct contact with environmental elements. The inherent strength provided by the spiral barrel minimizes axle deflection, providing smoother operation. Because the curtain is attached by screws and not seamed to the barrel, cost-effective replacement of either independent assembly is quick and easy.

Gliderol electric operators are internally enclosed in the barrel to provide quiet and reliable operation. The operator's design is compatible with transmitters and receivers, pneumatic sensing edges and other electric operation accessories. The operator side must be specified when ordering.
Click these links to view Shop Drawings and Installation Instructions for the Model 2000 door.
Click this Data Sheet link to view a data sheet for the Model 2000 and Model 2000i doors. This data sheet provides data such as side and headroom clearance requirements.
Model 2500 and 2500i Commercial Door
The model 2500 is the new standard for heavy duty commercial sheet doors featuring universal mount 4" deep 12 gauge galvanized steel guides for strength and durability. The easy installation, versatility and easy operatio make this door the standard of all commercial sheet doors. Backed by a one year warranty on workmanship and material, this heavy duty Model 2500 is engineered for reliability and value.
Prices for Model 2500 Starting At: $625.00 (excludes added options, freight and handling).
Prices for Model 2500i Starting At: $965.00 (excludes added options, freight and handling). 
Heavy-duty 3" wide 12 gauge galvanized steel guides. Universal mount for multiple jamb surfaces.
Click these links to view Shop Drawings and Installation Instructions for the Model 2500 door.
Click this Data Sheet link to view a data sheet for the Model 2500 and Model 2500i doors. This data sheet provides data such as side and headroom clearance requirements.
Model 3000 and 3000i Commercial Door

The model 3000 is a non-certified windlock door for larger more demanding door applications. As a stong and durable alternative to other door types, this rolling sheet door offers many features at a great value. Engineered with performance and ease of maintenance in mind, the Model 3000 is one of the best values on the market.
Prices for Model 3000 Starting At: $962.50 (excludes added options, freight and handling).
Prices for Model 3000i Starting At: $1302.50 (excludes added options, freight and handling). 

Tough durable and wide, heavy duty nylon strapping helps control curtain stretch while deadening sound and reducing wear. The 12 gauge windlocks provide the strength when engaged under load. Easy operation is provided during normal use because the windlocks do not come in contact with the guide.
Heavy-duty 4" wide 12 gauge galvanized steel guides. Universal mount for multiple jamb surfaces.
Click these links to view Shop Drawings and Installation Instructions for the Model 3000 door.
Click this Data Sheet link to view a data sheet for the Model 3000 and Model 3000i doors. This data sheet provides data such as side and headroom clearance requirements.
Model 3100 and 3100i Commercial Door

The model 3100 is a certified wind load rated rolling sheet door that meets specified wind loads required by even the most strigent building codes. Independent laboratory testing proves how durable and strong this door really is. The quick installation and smooth operation, compared to other doors, further demonstrates how user friendly this door is.
Prices for Model 3100 Starting At: $1010.50 (excludes added options, freight and handling).
Prices for Model 3100i Starting At: $1350.50 (excludes added options, freight and handling). 

Tough durable and wide, heavy duty nylon strapping helps control curtain stretch while deadening sound and reducing wear. The 11 gauge windlocks provide the strength to meet the stringent wind load requirements when engaged under load; however, easy operation is provided during load free operation because the windlocks do not come in contact with the guide.
Heavy-duty 4" wide 11 gauge galvanized steel guides. Universal mount for multiple jamb surfaces.
Click these links to view Shop Drawings (for wind rated 3100 up to 12'0" x 20'0"), Shop Drawings (for winde rated 3100 up to 16'0" x 20'0") and Installation Instructions for the Model 3100 door.
Click this Data Sheet link to view a data sheet for the Model 3100 and Model 3100i doors. This data sheet provides data such as side and headroom clearance requirements.
Ready Built Steel Buildings can also provide repair kits for both Janus series roll up doors and for doors from many of the other manufacturers. These repair kits include drums, springs, mounting brackets, ratchet tensioner and fasteners. Click on this link to view a PDF file Instructions for Ordering an Upgrade / Repair Kit. Send us a fax or email or give us a call and we will be happy to prepare a quote for your replacement springs.
Click on the hyperlinks above to access drawings and installation instructions. These documents, which may be saved to your desktop or printed will be very helpful as you prepare and install your new door(s). Equally valuable is our video showing the installation of a commercial door. Want to check commercial roll up door cost for the models discussed above? Just click "this feature is coming soon" to view rolling sheet door pricing. Conversely, if you are ready to make a purchase, you may price any of our roll up doors and place your order from the catalog by clicking the "View Pricing or Checkout Now (coming soon)" button.