You can always trust Best Access Doors to deliver the best quality access doors for your easy access needs and any construction project. The BAC-FW-5050-DW drywall, insulated fire rated access door is an enhanced BAC-FW-5050 that includes a galvanized steel drywall taping bead flange to facilitate installation in drywall. The Acudor FW-5050 is an insulated, fire rated access door approved for use in walls and ceilings. For walls, this door has an Underwriters Laboratories (UL and ULC), 1-1/2 hour ""B"" label, with a maximum temperature rise of 250 degrees after 30 minutes. This door should be used in walls when temperature rise or heat transmission is a factor. For fire rated ceilings, this door has been approved by Warnock Hersey International for 3 hours (max. size to 24"" x 36"").