VST columns consist of four cement-bonded particle boards, which are connected to each other by angles. The reinforcement is provided at the factory. VST-columns can be manufactured in any dimensions (e.g. rectangular or square ground plan). Various punching heads are available to increase resistance to punching. At the construction site, the columns are filled with concrete, whereby the concrete core bonds with the cement-bonded particle board.
VST-columns have fire protection class A2-s1, d0.