How many slates do you need per square?

High x With Pieces per square
24 x 14 98
24 x 12 114
22 x 14 108
22 x 12 126
22 x 11 138
20 x 14 121
20 x 12 141
20 x 11 154
20 x 10 169
18 x 14 137
18 x 12 160
18 x 11 175
18 x 10 192
18 x 09 213
16 x 14 158
16 x 12 185
16 x 10 222
16 x 09 246
16 x 08 277
14 x 14 187
14 x 12 218
14 x 10 262
14 x 09 291
14 x 08 327
14 x 07 374
13 x 09 320
12 x 12 267
12 x 10 320
12 x 09 356
12 x 08 400
12 x 07 457
12 x 06 533

 

Slate Definition | Roofing slate maintenance | SLATE natural benefits