Which of the following is NOT typically included in a specimen interior door specification?

• A. Material and core
• B. Finish and fire rating
• C. Hinge type and hardware set
• D. Brand sponsorship and marketing materials

Answer: (D)

In a specimen interior door specification, you focus on details that define how the door is built, how it performs, and how it will be installed. Material and core tell you what the door is made of and its construction (solid, hollow core, etc.), which affects strength, weight, and cost. Finish and fire rating specify the door’s surface appearance and its required fire resistance to meet code or project standards. Hinge type and hardware set outline how the door will operate, where it will be mounted, and what hardware is compatible for latching and security. Brand sponsorship and marketing materials, however, are not part of the technical or install-focused information you need to specify a door’s performance and fit; they belong to marketing rather than the product’s physical and functional details.