What Is A Saddle Threshold?
Saddle thresholds for commercial doors are a type of commercial door hardware that runs the width of the door and is mounted on the floor. A saddle threshold sits on the floor underneath the door when the door is closed.
Saddle thresholds get their name from their similar look to a horse saddle when viewing a cross section of the door saddle
A door threshold serves a number of valuable purposes. Among the benefits of saddle thresholds are the following:
- Saddle thresholds help prevent air flow beneath a door which can save energy costs
- Thresholds retard sound transmission between two spaces
- In the event of a fire, a threshold can help stop the transfer of smoke through the gaps under the door
Most commonly, a saddle threshold (sometimes called a door saddle) is made from extruded aluminum metal and can have different shapes and elements that provide various styles and benefits.
The height of the saddle threshold should be selected based on the undercut of the door and any flooring materials present. Generally a saddle threshold that leaves 1/4″ – 1/8″ gap is preferable to close the gap at the bottom of the door effectively, especially when used with a door sweep, while still allowing a smooth swing of the door.
The length for saddle thresholds are usually the same as the width of the door opening so that the door saddle runs the full width of the opening for one continuous piece of metal. For example, if you have a 36″ door you will also use a 36″ threshold. Door thresholds can generally be cut and notched in the field to fit around the door frame’s profile. Depending on the material of the threshold, certain tools may be required to adjust the size of the threshold. Some materials can be harder to work with such as door thresholds made of stainless steel or bronze.
If heavy traffic and abuse is expected at the opening, aluminum saddle thresholds may not last as long as other styles of thresholds. One way to make saddle thresholds stronger is to use a material other than aluminum such as bronze or stainless steel. A bronze saddle threshold is more durable in this saddle form and will not bow or discolor under heavier foot traffic. However, bronze and stainless steel thresholds are often more expensive than aluminum. So, if cost is a concern, another option is to use a thicker heavy-duty saddle threshold while others may have support sections underneath the threshold that help them last longer.
On openings where accessibility is a requirement, the maximum height for a saddle threshold is 1/2″ overall.
Talk with a Beacon Sales Representative today about options available for saddle thresholds and what the best options are for your project. Custom sizes and options may be available for specialty projects as well as other threshold styles that meet your needs more effectively.
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