On-center spacing used with 4'times 8' sheathing and paneling are __ 16'' and 24'' 8'' and 12'' 12'' and 16'' 24'' and 36''

The correct answer is and .On-center spacing refers to the spacing between the studs or joists in a building's framing. It is the distance between the centers of adjacent studs or joists.For sheathing and paneling, the typical on-center spacing used is and . This means that the studs or joists are spaced or apart, measured from the center of one stud or joist to the center of the adjacent stud or joist.The spacing is commonly used for interior walls, while the spacing is commonly used for exterior walls or longer spans. This spacing provides adequate structural support and allows for proper installation of the sheathing and paneling.It is important to note that the specific on-center spacing requirements may vary depending on the type of building, the design, and the local building codes and regulations. It is always recommended to consult with a professional builder or engineer to ensure that the spacing meets the necessary structural and safety requirements.