Fire Door Frame With Threshold

Thresholds are rarely mandated by the codes and standards for fire doors or smoke doors but when they are used in these applications thresholds must be listed to ul 10c or nfpa 252.

Fire door frame with threshold.

Thresholds should be provided under the door and between the frame to allow for a smooth transition between floor coverings of different heights or materials. Suitable for inward or outward opening doors this frame provides an excellent colour match across the components compared to cheaper options. Top quality solid unassembled frame with threshold sill rebated for 44mm thick door leaf and supplied with aquamac 21 joinery seal. Bs9999 2008 recommends for fire doors with cold smoke control that the threshold gap should be either less than 3mm in height or should be fitted with a threshold seal.

And since simpson fire doors have been designed to match other interior doors your fire rated doors will blend seamlessly with all doors in your home. Door frames should be purchased from the door manufacture or from a company licensed to manufacture them or via a bwf approved fire door centre. When speaking with manufacturers however a common statement is that a fire doors gap of up to 8 mm underneath the door is permissible. Special consideration should be given to threshold designs used in means of egress or in handicap accessible situations.

Simpson offers thousands of choices for fire rated doors including 20 minute fire rated wood doors and mdf doors with fire ratings up to 90 minute.