Trap Door Size (X) : 600 x 600
Ceiling Section on the periphery (Y) (Center to center Distance) : 700 x 700
Margin (7) : 100 mm
Trap Door Size (X) : 600 x 450
Ceiling Section on the periphery (Y) (Center to center Distance) : 700 x 550
Margin (7) : 100 mm
Trap Door Size (X) : 450 x 450
Ceiling Section on the periphery (Y) (Center to center Distance) : 550 x 550
Margin (7) : 100 mm
Trap Door Size (X) : 450 x 300
Ceiling Section on the periphery (Y) (Center to center Distance) : 550 x 400
Margin (7) : 100 mm
Trap Door Size (X) : 300 x 300
Ceiling Section on the periphery (Y) (Center to center Distance) : 400 x 400
Margin (7) : 100 mm.
