Rugged and Secure

Roof Hatches & Floor Doors

for Commercial, Industrial & Institutional Applications
Williams Brothers - WB RH Series Galvanized Steel Roof Hatch


Williams Brothers’ Roof Hatches and Floor Doors are designed to provide efficient and secure service access to critical areas on roofs and under floors for a wide range of commercial, industrial, institutional and residential applications. Ideal for both new and retrofit building projects, our roof hatches and floor doors are suitable for use on a variety of surfaces enabling easy access to mechanical, electrical, plumbing and other building systems.

Sizes & Options

Williams Brothers’ roof hatches and floor doors are available in a wide range of sizes designed to fit common framing dimensions with special sizes and modifications available upon request. Popular sizes include 24×24, 30×54, 30×96, 36×36, 48×48 and more. We also offer many additional features such as drainage troughs, locks, gasketing, choice of finishes and custom color paints.


Williams Brothers prides itself on the differences we bring to our roof hatches and floor doors. Our dedication to manufacturing quality makes us the choice for construction companies, architects, and engineers that demand the best access doors and panels in the world. Once you see what separates Williams Brothers from other manufacturers, you too will appreciate and demand the Williams Brothers difference.

Product Highlights

Standard: The WB RH Series Steel Roof Hatch has recently been re-designed and comes standard with a heavy duty lock & handle assembly, weather-resistant gaskets, and a fully concealed hinge on the interior. Our pre-lubricated compression springs encased in zinc-plated telescopic tubes make for extremely smooth action.

Fire-Rated: The WB FD-8500 Series Fire Rated floor door has flush diamond plate cover for utility and general purpose applications. Featuring the latest fire-resistant technology, the FD-8500 incorporates an automatic, heat triggered closing mechanism to protect floors above from fire below.

Other popular roof and floor access door models include: railing systems, Bilco commercial floor doors and hatches, safety posts and ladder ups, and disappearing stairways for specialty needs.