I used an Engineer in Fenwick Ontario, I think he charged me $800.00. 2-3 years ago.
42' x 192' building with footings.
I gave him a plan of exactly what I wanted, overhead door sizes and locations etc.
He provided the drawing and stamp.
Shoalts Engineering 905 892 2110 or 905 892 2133
All I can say is I've made melamine drawers and have used this method on probably 4-500 drawers and they work perfectly.
Cut them on the CNC, dowel construction, assemble them, and slide them in the cabinet.