Modern open riser curved spiral staircase with steel rod railings

Modern open riser curved spiral staircase with steel rod railings
Description
Modern open riser curved spiral staircase with steel rod railings

Specification: 
Stringer 200*100mm in carbon steel
Stair tread 80mm thickness solid wood tread
Railing # height 36''/42''/1000mm
Baluster 50*50mm in carbon steel
solid rod 8mm in cabon steel
Top handrail 48mm in solid wood

Solid wood stair tread options:


Color for the stairs tread can be customized.
Below are some regular color for reference and choose: