This is a fully procedural U-profile defined by the standards of DIN EN 10279 to build technical structures. It’s built with geometry nodes of Blender 3.6.2 and you can choose the size by changing the value of “Größe” in the properties section of the item. There is also a property value called “Länge” where you can procedurally change the length of the part.

At the ending point you can shear the profile in x- and y-direction from -60° through +60° in over the custom properties to create mitres.

If you desire greater angles you can adjust the min/max-values of the respective custome property.

All dimensions like round bevels, material thicknesses and inclines are built according to the above-mentioned standard.