Sectional door

Our doors are always open At PROMStahl we don't think terms of doors, but in terms of solutions. It is your specific requirements and wishes that are at the forefront of the design and manufacturing process, resulting in doors characterized by their quality and individuality, right down to the smallest detail. These are the doors the market demands and that can be found in any sector and building. In fact, wherever you go you're likely to run into a PROMStahl door. Active worldwide PROMStahl GmbH stands for a full and high-quality product range, a service-oriented approach and very competitive prices. PROMStahl offers all-in packages that attract and retain an ever-increasing number of designers, builders and entrepreneurs. Our clients who are located in over 30 countries worldwide, feel at home at PROMStahl because we always give them a warm welcome: Our doors are always open.

Loading Technology

Our wide array of loading devices covers every aspect of vehicle loading and unloading as well as its facilitation and improving its safety. Each of our products and solutions is of the highest quality, durability, and safety.


Smartly designed accessories will improve safety and performance of your loading dock. The docking accessories will turn your loading dock into an even more reliable station that can provide unobstructed flow of materials.

ALU Sectional door 40 mm

When natural light and visibility matter

In industrial environments where light and visibility are of paramount importance, the PROMStahl ALU 40 mm sectional door proves to be indispensable. The door panel of an ALU door consists of multiple sections, and thanks to the special-sized aluminium profiles, frames can be manufactured that have a very wide range of uses. Be bold and combine transparent, coloured, insulating or air-permeable windows with aluminium cassette panels. Anything is possible.



Be adventurous with windows

ALU 40 mm sectional doors can be equipped with plastic window frames of various levels of quality and with different insulation values, colors and structures. Go for coloured glass or hollow-core plates, play with the divisions or combine various ISO panels with the ALU sections for a great result. Thanks to the plethora of design and application options, the ALU 40 mm sectional door is particularly useful if you want to combine an attractive design with optimal light transmittance.

Product data sheet

product datasheet_PDAA