The project "UFO Zoetermeer" is in construction in Zoetermeer based on a design made with Advance Steel Project : UFO Zoetermeer. Building place : Shopping center West Zoetermeer, Zoetermeer, Netherlands. Company : CSM Info: Weight: 290 tons Diameter: 35 meters Height: 12 meters Supports on only 3 concrete columns having a 800 mm diameter. Draftsman: Eddy Vrolix Software used: Advance Steel.