Tracks, Ducts, Rails & Slides

View more products here:  Slides | Tracks, Ducts, Rails

Sill Track Caps are used in all styles of sliding doors and windows, for both outdoor and indoor applications. They fit over or in a specific area of the extruded sill track that the door rollers ride on, to protect it. Our standard caps and covers that are available are the #1 and #2 styles. We also have over 20 styles for both standard sill track extrusions and also custom styles for non-standard sill track extrusions. Some of these styles are made with Johnson Bros. owned tooling available for use and other styles, not available for others, were designed for customers who purchased custom tooling for their own proprietary use. Caps and Covers can be made with a snap-on or slide-on fit for the track extrusion you are using. Slight variations can be made to standard style cap and cover dimensions for a more customized fit at no extra charge. Caps and covers are automatically cut-to-length in line for standard and custom width door and window track extrusions. The majority of Sill Track Caps and Covers are produced with stainless steel for both indoor and outdoor applications. The stainless alloy most commonly used is a non-magnetic, T304, which holds up very well against corrosion. A T430 magnetic stainless alloy can also be used for less expense, but also with less resistance to corrosion. If you are using a cap or cover now, you can determine what alloy of stainless you have by seeing if a magnet is attracted to it. Other, even more corrosion resistant stainless alloys can be used, besides the standard T304 alloy, for salty environments. Brass is sometimes used for extra lubricity in indoor, heavy duty, sliding door applications, and are often made into track extrusion inserts instead of caps. Our most commonly used standard sill track cap and cover styles are produced in .018” and .016” thicknesses. Thicknesses can go as high as .125” on custom styles if necessary. Some track extrusion applications may use our track inserts instead of caps in an area of the track extrusion where the door rollers will ride. This differs from caps and covers in that the track extrusion is made with an area missing that the insert is designed to fit into. Custom Caps, Covers, and Inserts are frequently provided to unique customer requirements with new tooling being manufactured to produce them. Here are some reasons you should use caps, covers or inserts for your door and window, sill roller track extrusions.