Which of the following is considered a masonry siding product?

Brick veneer is considered a masonry siding product because it is made from fired clay bricks, which are a traditional masonry material. This type of siding is characterized by its durability, aesthetic appeal, and thermal mass properties that contribute to energy efficiency. Brick veneer is installed as a facing on top of other structural materials, offering both functional and decorative benefits.

In contrast, vinyl siding is made from plastic and does not fall under masonry products; it is a synthetic option valued for its low maintenance but lacks the solidness of masonry. Wood siding, while a natural material, is classified under wood products and offers a different set of characteristics and maintenance requirements compared to masonry. Steel, while durable and used in various construction applications, is a metal siding material and does not belong to the masonry category. Hence, brick veneer stands out as the correct answer in this context.