All measures are nominal. Slate may be cut to close metric approximations, coverage may vary slightly. Slate is a natural stone; each piece is unique. Color, texture and physical/chemical properties can vary.
Color
Unfading Gray Black
(Silver Grey)
Quarry Reference
#52/#55
Expected Service Life
75-125 years
Years Quarried
(Quarry District)
100+ years
(Quarry Face)
20+ years
Sizes
(Lengths)
12,14,16,18,20,24
(Widths)
6,7,8,9,10,11,12
(Thicknesses)
3/16-1/4, 1/4
1/4-5/16, 5/16-3/8
Optimal Sizes
Often Best Availibility and Price
(Lengths)
12,14,16,18
(Widths)
6,7,8,9
(Thickness)
3/16-1/4
Comment
In most regions, the most prevelant and traditional color. Lustrous. Imported.
