[SOLVED] Best way to make this shape?

Hey folks,

I need to build this shape but I wonder if this is the best way to do it, because it creates a polysurface.

The method I used to create it was the Sweep2, using these curves:

Would there be a better way of making this shape?

Cheers!

EDIT: After rebuilding the curves, Rhino now created a single surface, which is what I wanted.

Are you sure the rail curves are not polycurves?

An alternate approach would be to do a one rail sweep of one of the side curves around the closed end curve.

I see you you found your own solution, but I’ll post this reply anyway for future reference by others.

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