What term describes the exposed edge distance when casing is nailed to the jamb?

What term describes the exposed edge distance when casing is nailed to the jamb?

• A. Reveal
• B. Edge
• C. Gap
• D. Margin

Answer: (A)

Reveal is the term for the small amount of edge that remains visible after casing is installed on the jamb. This intentional offset creates a subtle shadow line and defines how the trim reads against the wall and door frame. The expose-on-view edge distance is what carpenters refer to as the reveal, and it’s set by how the casing is positioned relative to the jamb (often with shims) to achieve a consistent, balanced look around the opening. This concept is distinct from a general edge, which is just the side of the trim; a gap describes any space between pieces, and a margin is a broader border term not specific to trim alignment. So the exposed edge distance described here is called the reveal.

Reveal is the term for the small amount of edge that remains visible after casing is installed on the jamb. This intentional offset creates a subtle shadow line and defines how the trim reads against the wall and door frame. The expose-on-view edge distance is what carpenters refer to as the reveal, and it’s set by how the casing is positioned relative to the jamb (often with shims) to achieve a consistent, balanced look around the opening. This concept is distinct from a general edge, which is just the side of the trim; a gap describes any space between pieces, and a margin is a broader border term not specific to trim alignment. So the exposed edge distance described here is called the reveal.