Inside Tunnel Doors

Tunnel Inlet Door Systems


Inside Tunnel Inlet Doors

Excellent energy savings compared to conventional curtain inlets. Tunnel inlets help to eliminate dead zone areas created by curtain sidewalls and curtain pockets. Cumberland’s Tunnel Inlet Door systems are easy to install, energy efficient and low maintenance.

key features

Height Options 4' - 5' - 6'
Panel Colors Black / black - black / white


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Easy to Install

The single Tunnel Inlet Door comes fully assembled and an ultra-lightweight, rigid laminate foam panel with aluminum channels on all edges makes for easy installation. Molded runners on the “P” seal allow for easy alignment and quick installation.
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Energy Efficient

With an insulation value of R-8, the Tunnel Inlet Door provides excellent energy savings compared to conventional curtain inlets. The lightweight rigid laminate foam panel construction includes a profiled rubber “P” seal for an airtight fit.
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Simple Operation

All brackets are galvanized for durability and long-life. Over time, cords can stretch requiring tension readjustment.  Choose from a tension bar or a ratchet-style cord adjuster ensuring a reliable door seal.