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This spiral is a cost effective stainless steel staircase. The treads and the handrail are out of wood.
To avoid all welding work and cleaning up the rail-baluster connections are made with wooden inserts..
Balusters are fitted through the treads connected with a screw from thew front and bottom.
For the column we use round tubing 154x2 mm as a sleeve placed around a Pine core fitted between the treads. The sleeve is is only decorative.
Also this stair is in D.I.Y available and can be shipped anywhere in the country.