8ft Interior Door: Meeting Fire Safety with Self Closing Hinges
Spec writers are frequently challenged to source fire-rated, self-closing door hardware that fits their projects. To help, NFPA 80 provides Table 6.4.3.1, which lists the [...]
UL Certified Door Hinges: Tested for 4 Hinge, 8 Foot Fire Doors
The widely referenced ANSI/BHMA A156.17 standard for self-closing hinges and pivots, for example, specifies testing with three hinges. That works well for typical commercial doors. [...]