Double-sided pergolas is primarily composed of a special support construction structured on top of steel poles.
This is mounted to the central backbone with the help of special steel hanger parts that are connected over the bearing rail profiles of the pergola.
Thanks to materials of size 100x100x3mm, 100x150x4mm or 200x200x5mm that are determined according to the dimensions of the steel structure, it will serve you for many years.