Side door ready to be installed. We got a fire door from a factory which was just slighty wider than a sheet. this meant that only one sheet had to be cut in order to fit it in. its quite hard to cut the sheeting really straight so the less cutting the better. We made a steel frame around the door and welded it to the horizontal bars. the timber frame was then screwed to the steel frame to fix the door in position. The door really slowed production but im glad we put it in now.Saves having to open the big doors in order to get in