What size are slate roof tiles?

Posted By On 3 Oct 2017

Slate roof tile trimmed to a bogen slate

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.

Black Slate roof tile custom shape

Slate roof tiles are rectangle in shape but can be trimmed into special shapes such as clipped corners, diamond, fish scale and hexagon.

Black slate roof tile roof pattern

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  “

 

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