SKYRAIL® is a formwork system developed for one-way ribbed slabs for residential or industrial buildings, reusable up to 100 times. The main formwork element of the SKYRAIL system is shaped to form a lightweight monolithic concrete slab. Traditional slabs incorporate hollow clay blocks or concrete blocks: the SKYRAIL system creates a structurally equivalent one-way slab, offering the advantage of a lower weight and significant reduction in consumables.