What kind of dado goes only partially through a joint?

• A. Through
• B. Blind
• C. Rabbet
• D. Dado

Answer: (B)

A dado is a groove cut across the face of a board to receive the end of another piece. How deep that groove goes determines the type. When the slot runs all the way through the piece, you have a through dado. If the slot stops before it reaches the far edge, you have a blind dado, which leaves material on the far side and creates a shoulder for alignment and strength. The option that goes only partially through is the blind dado. A rabbet is a groove along the edge of a board, not a cross-face dado, so it isn’t the same kind of cut.