Research symptoms & diagnosis of Coma: 1  Overview -- Coma. 2  Diagnostic Tests for Coma. 3  Home Diagnostic Testing. 4  Complications -- Coma. 5  Doctors & Specialists. 6  Misdiagnosis and Alternative Diagnoses. 7  Hidden Causes of Coma. 8  Other Causes -- causes of these or similar symptoms.
For most shelves made from 3/4 inch stock, a practical span is 30 to 36 inches. Shelf depth is determined by the size of the items to be stored, generally within the range of 6 to 24 inches. Shelf depth for a general purpose bookshelf is usually 10 to 12 inches. Shelf spacing will generally range from 7 to 15 inches with 8 to 12 inches being common for bookshelves. To prevent the case from looking and being top-heavy, use a smaller shelf spacing near the top and a larger one near the bottom.
The most common spacing is 16 inches on center (OC). This means the distance from the center of one stud to the center of the next is 16 inches. The space between studs that are 16 inches OC is 14-1/2 inches. The first and last studs in a wall are exceptions to the rule. The first stud is shifted over 3/4 inch as its centerline corresponds with the end of the wall, so its side is flush with the ends of the plates.