Easi-Set precast concrete buildings are chosen by engineers across North America for their proven effectiveness in water and wastewater applications. Precast concrete outperforms and outlasts metal, masonry and stick-built options. Pre-engineered, industrial-duty, with clear span roofs from 8 by 8 by 8 ft to 50 by 250 by 35 ft, they will fit any need. Smaller sizes come pre-assembled, larger sizes assemble in just hours with minimal site preparation. Buildings are weather-tight, flood resistant and designed for 150 mph wind loads.