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)
Headlap50mm65mm75mm80mm
6002753.643402683.743482633.813532603.85355
5002254.442902184.602982134.713032104.76305
4602055.002701985.192781935.332831905.41285
4001755.712401685.972481636.152531606.25255
3501506.672151437.022231387.272281357.41230
3001258.001901188.511981138.892031109.09205
Headlap85mm90mm95mm100mm
6002583.883582553.923602533.963632504.00365
5002084.823082054.883102034.943132005.00315
4601885.482881855.562901835.632931805.71295
4001586.352581556.452601536.562631506.67265
3501337.552331307.692351287.642381258.00240
3001089.302081059.522101039.7621310010.00215
Headlap105mm110mm115mm120mm
6002484.043682454.083702434.123732404.17375
5001985.063181955.133201935.193231905.26325
4601785.802981755.883001735.973031706.06305
4001486.782681456.902701437.022731407.14275
3501238.162431208.332451188.51248---
300------------