A prosthetic heart valve includes a collapsible and expandable stent having a proximal end, a distal end, and a plurality of commissure features disposed between the proximal end and the distal end. The stent includes a plurality of struts, selected ones of the struts having multiple widths along their length and being wider adjacent the commissure features than at locations spaced away from the commissure features. A collapsible and expandable valve assembly includes a plurality of leaflets connected to the plurality of commissure features.