SS-EN 1090-1 applies to structural parts in steel and aluminum that are manufactured in a workshop. The products must have a declaration of performance and be CE marked when they are sold. The workshop must be certified against the standard to be able to declare and label the products.
For the design, both in the workshop and at the construction site, the standard SS-EN 1090-2 applies to structural members of steel and the standard SS-EN 1090-3 for structural members of aluminum.
The standard SS-EN 1090-1 does not contain any separate rules for dimensioning or manufacturing. Requirements for dimensioning are found in the Eurocodes and in the national elections specified in the National Board of Housing, Building and Planning's regulation EKS.