Levels of Quality, Sizes, Edges, and Joining Systems. Shaw classifies its floors as Good, Better, Best, and Superior. Most floors fall in the Better or Best categories, with some floors falling into both categories at once (doubling the wear layer thickness bumps a product up to the Best level).
If your shelf projects 1 1/2 inches or less, there must be at least six inches between the top of the fireplace and the mantel. Any parts of the mantel that project more than 1 1/2 inches must be at least 12 inches from the top of the fireplace.
Measure the width of the existing fireplace. 3. Using the T-square, transfer the dimensions onto the MDF. 4. To create the crown and arch of the top of the mantel, you will need to decide how far to extend the width and then mark the MDF. This measurement needs to be equal on both sides. 5. Decide the height of the crown and mark it on the MDF. 6.