4D Sports Hall Doors
The 4D Doors sport hall doors complies with the German accident prevention regulations for schools ("Schulen") of the German statutory accident insurance (GUV), regulation S1. The door is bounce-resistant in accordance with DIN 18032 and approved by the "Forschungs- und Materialprüfungsanstalt für das Bauwesen, Stuttgart (FMPA)". The door frame consists of stable rectangular tubes with horizontal reinforcement struts and is optimally equipped for on-site infill. Counter weights and buffer stops ensure safe and very easy door operation.
Sports hall doors are fitted in the opening and are flush to the inside wall of the hall. They do not swing into the hall during opening and do not project into it when open.