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.
Any chimney should terminate at least 600mm above the ridge height.  This is a minimum to comply with building regs. This is measured to  the top of the pot. If the terminal â¦ is coming out of the slope of  the roof and not the ridge, then at least 2.3m measured  horizontally from the roof surface.ormally (and many places have their own code for this) a chimney has to be at least 2 feet higher than any roof within 10 feet of the chimney. check your local building dept for code compliance.