What Model is My Door?

By looking at a few qualities of your roll up door, you should be able to identify which model you have, and narrow down the production date.

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Rounded ribs as seen on model 940 and 950.

Flat ribs as seen on model 944, 955, and 988.

Flat ribs as seen on model 944, 955, and 988.

What profile is the corrugation?

Earlier doors (prior to January 2004) used a “rounded” corrugation. These doors are either a 940 or 950. Doors produced in January 2004 and later utilized a “flat” corrugation, known as models 944, 955, or 988.

What’s the application?

Model 944 (and prior to 2004 model 940) is by far the most common Trac-Rite door. Most (probably more than 99%) self storage and garden shed applications use this model. Model 950/955 doors are most likely to be found on a loading dock. Larger door openings (over 11′ wide or tall) are more likely to be the 988 door, clearly identifiable by the drum instead of an axle.

Does it have a drum or axle?

Model 988 is the only model to utilize a drum (large tube). Model 988 utilizes distinctive triangle shaped brackets.

What do the brackets look like?

To identify if your door is model 944 or 955, look at the brackets. Model 944 brackets have an upward angle to them, forming a parallelogram. They are stamped for rigidity. Nearly rectangular, Model 955 door brackets have a bend protruding at the top and bottom for additional strength.

To differentiate between doors with round profile corrugation (this would be either 940 or 950), look at the edges of the brackets. Model 940 door brackets are flat with a stamping for rigidity. Model 950 door brackets have a bend protruding at the top and bottom for additional strength.

What is the bottom bar made of?

The material of the bottom bar can tell you if the door was manufactured before or after May of 2008. Earlier doors feature an aluminum extruded bottom bar with a blade astragal. May 2008 and later doors are manufactured with a galvanized steel bottom bar equipped with a bulb/blade combination astragal.

Is it a windlock door?

Trac-Rite’s “windlock” door variants feature “hooks” on the sides of the door curtain which fit into a specialized track on the door guides. If ordering replacement guides, it’s important to order the correct version. Windlock doors are not common – when they are used, it is most likely on larger door sizes and/or in areas with a high risk of wind damage.

Logic Tree

See below for a logic tree to determine which model door you have. Click the image to view full size.

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