ABOUT Solidd Steel Structures


As an expert in heavy steel constructions, Solidd focuses on the construction of bridges, weirs, locks, cranes and applications for the offshore industry. Contact us without any obligation.


At Solidd we like to do things differently. Smarter. Faster. More efficient and creative. As an expert in heavy steel constructions, we can handle practically anything, no matter how complex a project is. From Sumar, professionals from the region work on challenging projects for governments and private clients at home and abroad.

FROM DESIGN to operational delivery

As an expert in dynamically loaded, movable steel structures, our activities focus on the entire implementation process: from design, to manufacturing, assembly and operational delivery of the steel product.

Safety for all 

From design to assembly: at Solidd we make no concessions when it comes to safety. We hold each other accountable for behavior and thus ensure a culture in which safe working is a matter of course.

Years  of experience

With over sixty years of experience, we have unique know-how in the field of (dynamically loaded, movable) steel structures. We keep this knowledge up to date and continue to expand it through continuous education and training of our highly qualified employees.

customer specific and innovative solutions

We love challenging customization. Each construction is tailor-made. For each unique request we search and provide the most efficient and innovative steel solution.

extensive machinepark and preservation hall

 With approx. 4,000 m2 of production area (9.5 m working height), our own (CNC) cutting machine, machining equipment and access to a preservation hall, we are perfectly equipped for processing extensive steel structures.

Unique location 

Our location, alongside the Princess Margrietcanal, makes it possible to transport steel constructions over water, to almost each location at home and abroad. 

fully certified

We carry out all our work in accordance with the applicable (international) standards. Solidd is fully NEN-EN 1090-1, SCC**, ISO 9001-2015, NEN 3834-2 and Safety ladder step 2 certified.

  • ISO 9001
  • EN ISO 3834-2
  • EN 1090-1
  •  VCA**
  •  CO² prestatieladder