Trim called backband Moldings and trim, Window trim ideas interior, Window design

Moulding Design Collections - Tague Lumber

How To Choose Interior Trim & Moulding

This Old House - EASY UPGRADE: Give dimension to flat window casings by wrapping them with backband molding. It's easy, and it really enhances the depth and design of your casings, says

Beef Up Door and Window Casing with Back Band

Window Trim - This Old House

Our 6 Most Popular Moulding Profiles – Horner Millwork

Greek Revival Window Molding - WindsorONE

A Concise Guide to Flat Base Moulding, The Moulding Company

Window Trim - This Old House