Commercial building customized curved wood staircase indoor steel stairs
Curved Staircase = Stainless steel stringer or Carbon steel stringer + Tread + Railing
Stringer : 300*(5+5)mm/(6+6)mm stainless steel plate stringer
Or 300*10mm / 12mm sinlge plate stringer
Tread = Steel / Wood / Marble / Glass ..
Railing = Steel railing ( cable railing, solid rod railing ); Glass Railing ( standoff railing, post railing ..)
( The specific thickness depends on client country building code and standard, also we need to consider the project budget.)
Glass for railing part, it should comply with the client local market standard. ( Such like the CE, AS/NZS 2208, SGCC etc )
All the details of staircase we will design it to match your local building code and standard.