FREEMAN'S patented chain-drive dogging system allows the installation of large, centrally located and specially shaped windows; this design feature is not available on competitive products.

Doors and hatches are easily dogged by actuating a single, centrally mounted handle; several styles of internal and external handles are available. Remotely actuated dogging options are also available.

The quick-acting dogging system utilizes a patented chain drive mechanism that is fully contained between the inner and outer skins of the door or hatch, affording protection from the elements.

Latching dogs are easily adjustable with simple hand tools.

Doors and hatches are normally supplied with four to six dogs; additional dogs can be specified for larger doors.

A keyed locking system that secures all the dogs by engaging the drive chain is a popular option.

A variety of hinge configurations are available for doors and hatches.