Door Bulat for your every need
The main difference between formed section and shaped tube is that formed section is made of single-piece of metal sheet and made in a way to have a look of the front door case. Due to this, the front doors with formed section have more compaction circuit (ledge) comparing with doors, made of shaped tube. Such doors have advanced sound insulation and frost protection as well as resistance to break-ins and look nicer.
Usually a tube with not a round cutting is called a shaped tube. Oval, square and rectangular shaped tubes are produced; moreover two last types are the most widespread. Such doors have limited variety of doors constructions and heat insulation of the door frame.