The spec is as follows:
Personnel door supplied and fitted (910mm x 2065mm).
Louvred vents supplied and fitted (300mm x 300mm) in right cargo door (1 high level, 1 low level).
12 inch opening/closing porthole window fitted in steel bulk head partition.
18mm ply lined 20ft pellet store and angled pellet feed trough housing at 45 degrees on all 4 sides including partition.
Custom fabricated 600mm x 600mm access hatch. Access opening from boiler room side.
Internally painted boiler room area in RAL 7035.

The containers were delivered on time, and to our clients bespoke specification.