Final answer:
The actual size of 1x12 lumber is approximately 0.75 inches by 11.25 inches. When converting the on-center spacing of vertical studs from inches to centimeters, 16 inches is equivalent to 40.64 centimeters.
Step-by-step explanation:
The size of 1x12 lumber, in nominal terms, is 1 inch by 12 inches. However, the actual dimensions after the lumber is planed and finished will be smaller, typically around 0.75 inches by 11.25 inches. The question specifically asks for the distance in centimeters when vertical studs, which could be made from 1x12 lumber, are placed 16 inches apart. To convert the spacing of vertical studs from inches to centimeters, we apply the conversion factor that 1 inch equals 2.54 centimeters.
The calculation would be 16.0 inches × 2.54 cm/inch = 40.64 centimeters. Thus, vertical studs that are placed 16 inches apart on-center would be approximately 40.64 centimeters apart on-center.
1x12 lumber refers to a common size of lumber used in construction and carpentry. The "1" refers to the thickness of the lumber, which is typically 1 inch. The "12" refers to the width of the lumber, which is typically 12 inches. So, the actual size of 1x12 lumber is 1 inch thick and 12 inches wide.