| Slate Length (mm) | Battening Gauge (mm) | m batten per m2 | Holing Gauge (mm) | Battening Gauge (mm) | m batten per m2 | Holing Gauge (mm) | Battening Gauge (mm) | m batten per m2 | Holing Gauge (mm) | Battening Gauge (mm) | m batten per m2 | Holing Gauge (mm) |
| Headlap | 50mm | 65mm | 75mm | 80mm | ||||||||
| 600 | 275 | 3.64 | 340 | 268 | 3.74 | 348 | 263 | 3.81 | 353 | 260 | 3.85 | 355 |
| 500 | 225 | 4.44 | 290 | 218 | 4.60 | 298 | 213 | 4.71 | 303 | 210 | 4.76 | 305 |
| 460 | 205 | 5.00 | 270 | 198 | 5.19 | 278 | 193 | 5.33 | 283 | 190 | 5.41 | 285 |
| 400 | 175 | 5.71 | 240 | 168 | 5.97 | 248 | 163 | 6.15 | 253 | 160 | 6.25 | 255 |
| 350 | 150 | 6.67 | 215 | 143 | 7.02 | 223 | 138 | 7.27 | 228 | 135 | 7.41 | 230 |
| 300 | 125 | 8.00 | 190 | 118 | 8.51 | 198 | 113 | 8.89 | 203 | 110 | 9.09 | 205 |
| Headlap | 85mm | 90mm | 95mm | 100mm | ||||||||
| 600 | 258 | 3.88 | 358 | 255 | 3.92 | 360 | 253 | 3.96 | 363 | 250 | 4.00 | 365 |
| 500 | 208 | 4.82 | 308 | 205 | 4.88 | 310 | 203 | 4.94 | 313 | 200 | 5.00 | 315 |
| 460 | 188 | 5.48 | 288 | 185 | 5.56 | 290 | 183 | 5.63 | 293 | 180 | 5.71 | 295 |
| 400 | 158 | 6.35 | 258 | 155 | 6.45 | 260 | 153 | 6.56 | 263 | 150 | 6.67 | 265 |
| 350 | 133 | 7.55 | 233 | 130 | 7.69 | 235 | 128 | 7.64 | 238 | 125 | 8.00 | 240 |
| 300 | 108 | 9.30 | 208 | 105 | 9.52 | 210 | 103 | 9.76 | 213 | 100 | 10.00 | 215 |
| Headlap | 105mm | 110mm | 115mm | 120mm | ||||||||
| 600 | 248 | 4.04 | 368 | 245 | 4.08 | 370 | 243 | 4.12 | 373 | 240 | 4.17 | 375 |
| 500 | 198 | 5.06 | 318 | 195 | 5.13 | 320 | 193 | 5.19 | 323 | 190 | 5.26 | 325 |
| 460 | 178 | 5.80 | 298 | 175 | 5.88 | 300 | 173 | 5.97 | 303 | 170 | 6.06 | 305 |
| 400 | 148 | 6.78 | 268 | 145 | 6.90 | 270 | 143 | 7.02 | 273 | 140 | 7.14 | 275 |
| 350 | 123 | 8.16 | 243 | 120 | 8.33 | 245 | 118 | 8.51 | 248 | - | - | - |
| 300 | - | - | - | - | - | - | - | - | - | - | - | - |