Prima Stairs Wooden Treaded Indoor Spiral Staircase

Product Description Staircase Carbon steel Beam for stair s Invisible beam 250*100*10mm Stairs tread Laminated glass 12+1.52+12mm Solid wood 50mm/60mm/100mm/customized Stair Railing Laminated glass 6+1.14+6mm/8+1.14+8mm Tempered glass 1 0mm/15mm/12mm tempered glass 304 s.s Cable railing Diameter 4mm/6mm/8mm wire/cable railing How to measure the size? Option 1,you can send us your project drawing or layout,then we can find the data that we need. Option 2,please see below picture,you can according to the way,then to measure your stairs dimension. After we have get the dimension,we will make the