After machining, the stair components must be reworked by hand to ensure that all fits are exact. In traditional staircase construction, the staircase is even completely assembled once in the workshop. Even with parts that were manufactured on CNC machining centres, manual reworking is often still necessary.
Well-equipped manual workstations are ergonomically designed and have, for example, lifting devices to automatically lift the heavy workpieces into a favourable working position.