Hollow Metal Door Core Types: Honeycomb, Polystyrene and Steel-Stiffened
Compare honeycomb, polystyrene, polyurethane, steel-stiffened and temperature-rise cores for hollow metal doors.
Fire Doors
Fire ratings, assemblies, glazing and compliance decisions.
Steel Door Gauge Thickness: 14, 16, 18 and 20 Gauge Explained
Understand steel door gauge thickness, the SDI decimal references for 14, 16, 18 and 20 gauge, and what to specify for commercial openings.
Fire Door Gaps and Clearances: How to Review Head, Jamb and Bottom Gaps
Learn how to review fire door gaps at the head, jambs, meeting edges and bottom using consistent measurements and the approved assembly requirements.
Fire Door Inspection Checklist: What to Check Before an AHJ Visit
Use this fire door inspection checklist to review labels, clearances, hardware, glazing, closing, latching and field modifications before an AHJ visit.
Commercial Door Submittal Package: A Practical Checklist Before Release to Production
A commercial door package rarely fails because a buyer chose the wrong product name. More often, the problem starts earlier:
Commercial Doors for Building Projects: Product Families and Selection
A practical traffic keyword guide for commercial doors, covering project use, quotation details, supplier checks and what to send before ordering.
Fire Door Certificates and Documentation: What Buyers Should Request
A practical traffic keyword guide for fire door certificates, covering project use, quotation details, supplier checks and what to send before ordering.
Fire Rated Doors: A Practical Buying Guide for Commercial Projects
A practical traffic keyword guide for fire rated doors, covering project use, quotation details, supplier checks and what to send before ordering.
Fire Rated Steel Doors for Contractors: Specification and Quote Checklist
A practical traffic keyword guide for fire rated steel doors, covering project use, quotation details, supplier checks and what to send before ordering.
Hollow Metal Doors: When to Use Them in Commercial and Industrial Buildings
A practical traffic keyword guide for hollow metal doors, covering project use, quotation details, supplier checks and what to send before ordering.