There is two types of stair treads, one type is bolted fixed, another is welded fixed. And for bolted fixed, the stair treads divides to two type, one type with nosing plate T4, the other without nosing plate T2.Using bolts to fix the stair treads, it is much easier to install and take off.Stair tread made of steel grating is widely used in any steel ladder. Featuring easy installation, strong structure & aesthetic appearance, & good water permeability. We can fabricate it in accord with cutomers’ requirment. Our stair treads can be made from any type of grating and to any dimensions which suits the relevant stairway. In the interest of economy we s est that the recommended widths and lengths be used wherever possible.