Flat butt commerical11/14/2023 ![]() This is why smooth top aluminum thresholds are typically narrow and have a thicker profile. They are usually not comprised of any type of reinforcing ribs or material underneath. Smooth top is usually only available for more narrow profile thresholds or specialty stainless steel or bronze thresholds. These are typically used mainly for aesthetic purposes as there is no real advantage in structural integrity or slip resistance. Smooth top saddle thresholdsThis threshold has a smooth finish, and is not textured at all for grip. In terms of visual appearance, saddle thresholds can come in smooth top finishes, fluted, or even coated with an anti slip coating to prevent any injuries in outdoor, or weather exposed applications. Saddle thresholds are typically 2" to 10" wide, just enough to span a door or hide an expansion joint. Please see ADA Threshold Requirements section to learn more. This type of threshold is typically offered in 1/4" and 1/2" heights to meet ADA requirements. ![]() Saddle thresholds are symmetrical and of a trapezoidal shape. This is what is commonly used for doors, and transitions between two different surfaces. Saddle ThresholdsSaddle Thresholds are the most common type of threshold on the market. In the diagram below, we illustrate the main types of commercial grade thresholds. We will go over the different types of thresholds below so you can determine the proper threshold you need. ![]() Commercial door thresholds come in many different styles including saddle, half saddle, bumper seal, offset, ramp and many others. These dimensions will determine the footprint of your threshold. The two main dimensions of the threshold that are typically most important are the height and the width of the side view. This is why thresholds are typically shown with a side view diagram, as this contains all the dimensions that are consistent, no matter what length of the threshold you need. ![]() Because thresholds are typically extruded this means the cross section of a threshold is the same at any point in the threshold. Thresholds are typically extruded out of aluminum, bronze, stainless steel and many other finishes. Commercial Door ThresholdsWhat is a commercial door threshold? A commercial door threshold is a threshold that meets specific building codes in order to cover, or fill the gap between the floor and the door. ![]()
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