Adding backband to door casing/baseboard sizing?

Our 6 Most Popular Moulding Profiles – Horner Millwork

4-Planning-Your-Trim-And-Doors - Measure Your Project - Build It Better

Best option to transition baseboard to door casing? Bevel or plinth or other? : r/Carpentry

Beef Up Door and Window Casing with Back Band - Pretty Handy Girl

Door Casing Baseboards Thinner Than Shiplap How To Fix, 52% OFF

Interior Trim: Scale and Proportion - Houseplans Blog

corner stick - Ceiling trim, Stick, Corner

This door trim looks like crap, right? : r/Homebuilding

How To Add Picture Frame Molding To Your Walls