The Supreme

Heavy duty concertina loft ladder (200kg per tread and 500kg/m2 overall load rating)
Complete with hatch box and trapdoor
Counter-balanced spring mechanism for easy operation
Highly insulated trap door for excellent energy efficiency (U value of 0.58W/m2K)
Telescopic handrail and large treads for comfort and safety

Options:
Available in Passivhaus version with secondary upper hatch (U value of 0.28 W/m2K)
Wooden hatchbox and trapdoor F30 
Steel hatchbox and trapdoor - F30 and F60/F90

Accessories can include:
Electrical operation (not on the wooden hatchbox and trapdoor F30)
Weatherproof roof hatch with further options on the lower trapdoor - wooden trapdoor, wooden trapdoor F30, steel hatchbox and trapdoor F30 and F60/F90
Vertical access
Telescopic handrail (to one or both sides)
Top operating mechanism (not on wooden hatchbox and trapdoor F30)
Cylinder lock to trapdoor (not on wooden hatchbox and trapdoor F30 or electrically operated units)
Three side upper level guardrail
Energy saving top cover