Mortise-and-tenon joinery is central to traditional interiors because what?

• A. A decorative veneer technique used for surfaces.
• B. A strong frame joint using a mortised slot and tenon; crucial for durable wooden furniture before screws became common.
• C. A method of wall painting.
• D. A form of upholstery joinery.

Answer: (B)

Mortise-and-tenon joinery centers on creating a strong frame by fitting a tenon on one piece into a corresponding mortise in the other, often pegged or wedged for extra security. This joint is highly durable and resists pulling forces, making it ideal for furniture and timber-frame interiors, especially before screws and metal fasteners were common. It leverages the wood’s own grain and can accommodate changes in moisture, contributing to long-lasting, well-aligned frames for doors, chairs, tables, and cabinetry. It’s a structural technique, not about surface decoration, which is why it’s central to traditional interiors.