Spines are made of steel and painted with electrostatic powder coat. For the wide range of color, pelase click on metal paint tag. Steps are produced by  4 cm beech massive panne and colored with wooden colorant. Except beech, oaken, iroko white birch, sapele, can be used for production.
 
Barriers are aliminium. Step distance can be arranged between 18,5 cm - 22 cm. Up to 280 - 300 cm floor high, 13-14 steps possible. Ladders manufactured as  L or  U sytle. Click for ladder plans.
 
Laminated  steps and  square shaped  stainles steel  apllied to this design.