18" x 18" KSTDW Concealed Sesame Ceiling Access Hatch for Drywall Ceilings

The KSTDW is designed for complete concealment in drywall ceilings. Door panel on the sesame doors will open to a check position for safety and then release for a 90 degree opening and is removable. Construction: Frame shall be 20 gage hot dripped galvanized steel Door shall be 20 gage electro-galvanized steel and shall be lined with 3/8" mineral fiberboard Gasketing shall be flame retardant polyurethane Locks shall have plastic grommets and shall be square head key wrench operated Hinge shall be concealed pivot with with a controlled action device (CAD), except for size 12" x 12"