| Stair Stringer | 300*12mm or 300*10mm double beam ,A3 steel.sus304/sus316. |
| Stair Step | 38mm solid timber or laminated tempered glass.or customized |
| Standard Step Length | 600-2000mm. |
| Standard Step Width | 225-300mm |
| Wood Tread Option | 1#Europen Beach;2#Oak;3#Manchurian Ash;4#Thailand Oak |
| Stair Railing | glass railing,stainless steel cable railing,stainless steel rod balustrade |
| Handrail | Ø50.8*1.35mm sus304,sus316 or A3 steel or customized |
| Riser Height | 150-200mm |