ALLEGION 8644 Zero Threshold Section
Product Specifications
- Intended Use: Threshold for fire doors
- Material: Aluminum
- Fire Rating: Up to 3 hours for steel frames, up to 1.5 hours for wood and plastic-covered composite doors, up to 20 minutes for wood core doors
- Standards Met: UL10B, UL10C, CAN4-S104-2010 Category J .17L5 9903
Product Usage Instructions
Customer Service:
Caution: Edges of aluminum parts may be sharp. Wear gloves and handle with care.
- Measure and Cut: Measure the door sill at the bottom of the frame. Cut the threshold to span the full width of the opening.
- Notch for Jamb Stops: If the door frame has side jamb stops, notch the threshold ends as needed to ensure a proper fit.
- Secure the Threshold: Place the threshold on the sill and fasten it in place using the provided screws.
- Check Door Operation: Open and close the door several times to confirm that it latches and closes smoothly. Make any necessary adjustments to the threshold.
Positive Pressure Tested Gasketing Materials for Fire Doors. Intended for Application to/ with listed steel frames and/or classified steel covered composite, hollow metal-type fire doors rated up to 3 hours, wood and plastic-covered composite-type fire doors rated up to 1- 1/2 hours, and wood core-type fire doors rated up to 20 minutes. Meets UL10B, UL10C and CAN4-S104-2010
- Category J .17L5 9903
- © Allegion 2025
- Printed in U.S.A.
- 016359 Rev. 07/25
FAQs
Q: Are gloves necessary when handling the aluminum parts?
A: Yes, it is recommended to wear gloves as the edges of aluminum parts may be sharp.
Q: What type of fire doors is this threshold suitable for?
A: This threshold is suitable for use with steel frames, wood and plastic covered composite doors, and wood core doors with specific fire ratings as mentioned in the specifications.
Q: What standards does this product meet?
A: This product meets UL10B, UL10C, and CAN4-S104-2010 Category J 17L5 9903 standards.
Documents / Resources
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ALLEGION 8644 Zero Threshold Section [pdf] Installation Guide 8644 Zero Threshold Section, 8644, Zero Threshold Section, Threshold Section, Section |