STACO - Staco Grating Technology. Staco provides a complete range of gratings, stair treads and associated products in steel, stainless steel and aluminium. All gratings and stair treads can be produced in any size and according to your own specifications. Our quality products are used not only as floor gratings, but also increasingly as stylish wall and ceiling cladding, genuinely adding to the architectural value of a building. Our products are found in multiple and varied sectors that include industry, residential and non-residential construction, offshore and shipbuilding, agriculture and civil engineering.