The common gauge range for aluminum used in the shop is 0.020-0.125 inches.

• A. False
• B. True
• C. 0.010-0.100 inches
• D. 0.030-0.2 inches

Answer: (B)

Aluminum stock used in most shops is stocked in a practical thickness window from about 0.020 to 0.125 inches. This range (roughly 0.5 to 3.2 mm) covers thin sheets used for lightweight components up to thicker stock suitable for brackets and light structural parts, while keeping the material easy to cut, form, and machine with standard equipment. It also reflects the fact that as thickness increases, formability and bend considerations change, so this range is a versatile default for common fabrication tasks. Because this range aligns with typical shop practice, the statement is true.