Bork Architectural Design, Inc. I designed it. It's constructed using 12"x1.5" channel steel as the stringers with welded steel angles to support the 3.5"x11.25" pine glulam beams used as stair treads. The steel railings and stringers are all powder-coated. Hope that helps.......
regterkantse muur kan reeling bo hê? met deure na studderkamer en onder studderkamer agter muur van trappe is ingangsportaal. Jy kyk na kombuis leef en eetkamer van grage en braai area af? en links is oop vensters wat uitkyk op tuin?