The Loft Ladders Vertical Hatch Concertina come in four standard sizes and is constructed from pressure die-cast aluminium the ladder unit is supplied without the trap and lining.
These ladders are perfect for installations where a lined wall aperture already exists but it is also suitable for installation onto mezzanine floors and vertical ladders can also be mounted onto walls to give access for service maintenance.
They are supplied as a ready to fit unit fixed to a 600 x 200mm laminated wood mounting board, which is screwed to a hinge mechanism. Counterbalance springs mounted on the hinge brackets plus control springs in the side arms ensure that the stairway operates smoothly and safely with the minimum of effort.
They can also be fitted with a telescopic handrail , it is possible to have the handrail on the left or indeed on both sides.
Full details of the four sizes available as standard can be found below.
(The going from floor to floor is set at twenty two and a half degrees, so suffient space must be allowed for this as it does not drop vertically.)
JUN01v - Floor height up to -2.64m - Min apperture 600 x 770 - 09 tread 350mm wide
JUN02v - Floor height up to -2.93m - Min apperture 600 x 820 - 10 tread 350mm wide
JUN03v - Floor height up to -3.23m - Min apperture 600 x 900 - 11 tread 350mm wide
JUN04v - Floor height up to -3.53m - Min apperture 600 x 970 - 12 tread 300mm wide
When using this unit with the hinge mechanism, you need to measure floor to finished floor level before making your choice. If in doubt please call.
