Stringer | 300*12mm in carbon steel |
Tread support | 6mm in carbon steel |
Stair tread | 45mm thickness solid wood tread |
Railing # height | 36''/42''/1000mm |
Baluster | 50-25mm in carbon steel |
solid rod | 30*20mm in cabon steel |
Top handrail | 50mm in sus304 |