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Spiral staircases - LG-StandardGratings made of steel, gratings made of stainless steel, gratings made of aluminium, GRP-gratings, gratings fpr sun protection, gratings for coverings, perforated metal planks, pressure-locked gratings, forge-welded gratings
Lichtgitter spiral staircases, type "LG Standard" in galvanized finish are produced in a building-block system with a diameter of 1600, 1800 and 2000 mm (max. diameter of staircases).
Stairs and handrailing elements of different stair angles (stairs/spiral) can be used with this type of construction.
We can offer these staircases at reasonable prices and with short delivery terms due to the availability of standard sizes.
Calculations are carried out to determine the design requirements for staircases, by considering a uniformly distributed load of 3,5 kN/sq.m, or a concentrated load of 1,5 kN applied over an area of 100 x 100 mm from the leading edge of the nosing, at a distance of 100 mm from the outside line of the stair.
Spiral staircase systems provided by Lichtgitter have been inspected by the appropriate department of the German Ministry (see test report II B 6-543-206 dated 09.11.1995).
Tread widths are supplied in accordance with the German Standard DIN 18065.
 Technical data sheet spiral staircases (PDF)
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