Practical notes on choosing profiles, materials and specifications for doors and interior trim.

What Is a Door Casing? Casing vs Trim vs Jamb vs Door Frame
What a door casing is, how it differs from trim, the jamb and the door frame, and what each part is called in the US, the UK and other markets.

MDF vs Particle Board vs Plywood: How to Choose the Right Board
How the three boards are made, where each one works best, and what to specify when you order.

Door Casing and Trim Styles: A Sourcing Guide for Projects
Seven casing and trim styles, how the materials behave on site, and the checks to make before you approve a supplier.
