Abstract: The invention disclosed is an adjustable support adapted to support an access hatch frame for access to a sub-surface chamber or the like. The support has a lower frame member that at least in part defines a first aperture, the first aperture having or defining a first plane, the lower frame member having at least one upper interface surface. A similar upper frame is present that defines a second aperture, a second plane, and a lower interface surface. Upper frame member also has number of height adjustable mount points. The upper and lower interface surfaces define an interface plane. Rotation of the upper frame member, relative to said lower frame member on the interface plane, adjusts the relative angle of the two.

Abstract: The invention disclosed is an adjustable support adapted to support an access hatch frame for access to a sub-surface chamber or the like. The support has a lower frame member that at least in part defines a first aperture, the first aperture having or defining a first plane, the lower frame member having at least one upper interface surface. A similar upper frame is present that defines a second aperture, a second plane, and a lower interface surface. Upper frame member also has number of height adjustable mount points. The upper and lower interface surfaces define an interface plane. Rotation of the upper frame member, relative to said lower frame member on the interface plane, adjusts the relative angle of the two.