1 Algorithm based on impact on opinions over time - and Wikipedia. 2  Top ten most significant in history puts Jesus in the number one spot.  The list also includes Muhammad, Lincoln, Hitler and Shakespeare.
Plies vary in thickness from 1.4 mm to 4.3 mm. The number of plies depends on the thickness and grade of the sheet but at least three are required as the minimum odd number of plies. Roofing can use the thinner 5/8 (15 mm) plywood.
While there are a variety of different products that fall into this definition, not all of them fit the description of traditional plywood. However, each of them fulfills a specific purpose for which they have been designed. Different types of plywood are produced in a range of thicknesses from 1/8â to 1-1/4â thick. The plywood thickness is not the same for every board. This chart gives you an idea of the standard thicknesses of the most common types of plywoods: