Framing spaced 16 inches on-center (or 16 centers, or 16 o.c.) is only 14 1/4 inches apart.
Mark
A licensed contractor, tool expert, wood and outdoor enthusiast, and elite Spartan Race competitor, he writes about home improvement and tools for national magazines and websites, and teaches hands-on clinics for other remodeling professionals. Check out his book, The Carpenter's Notebook.