Many canopies are offered via websites, DIY shops, etc. Of course, there are differences in materials, finish and design. Basically they are all canopies, but the detail and the use of materials often makes the difference.
The construction: A Valk Veranda roof is based on the principle that the upright optimally supports the centre of gravity of the gutter. This means that the post or upright is at the same level as the back of the gutter. This transfers the force of the gutter load to the posts, preventing the gutter from tilting.