Slate roof tiles can range in size from 12” (length) x 6” (wide) up to 24” (length) x 12” (wide). Special sizes such as slate-and-a-half can be ordered to reach into valleys, gable ends, hips and dormers.
Slate roof tiles are rectangle in shape but can be trimmed into special shapes such as clipped corners, diamond, fish scale and hexagon.
Slate roof tiles are also available in a range of thicknesses from 3/16” to 1 ½” with the standard thickness being ¼” – 3/8”.
SCHEDULE OF STANDARD SIZES | |||
Slate size | Pieces per square | Exposure | |
Inches | at 3″ headlap | at 3″ headlap | |
24 x 12 | 115 | 10.5″ | |
22 x 12 | 126 | 9.5″ | |
22 x 11 | 137 | “ | |
20 x 14 | 121 | 8.5″ | |
20 x 12 | 141 | “ | |
20 x 11 | 154 | “ | |
20 x 10 | 170 | “ | |
18 x 14 | 137 | 7.5″ | |
18 x 12 | 160 | “ | |
18 x 11 | 175 | “ | |
18 x 10 | 192 | “ | |
18 x 9 | 213 | “ | |
16 x 14 | 158 | 6.5″ | |
16 x 12 | 185 | “ | |
16 x 11 | 201 | “ | |
16 x 10 | 222 | “ | |
16 x 9 | 246 | “ | |
16 x 8 | 277 | “ | |
14 x 12 | 218 | 5.5″ | |
14 x 11 | 238 | “ | |
14 x 10 | 262 | “ | |
14 x 9 | 291 | “ | |
14 x 8 | 327 | “ | |
14 x 7 | 374 | “ | |
12 x 10 | 320 | 4.5″ | |
12 x 8 | 400 | “ | |
12 x 6 | 534 | “ |