Page 140 - USG-Ceilings Plus Flip Book

LT31 1/2” ROUND HOLES @ 1” STAGGERED 20% ST40 5/8” ROUND HOLES @ 1-1/4” STRAIGHT 20% ST41 5/8” ROUND HOLES @ .884” DIAGONAL 39% LT34 3/4” ROUND HOLES @ 1-1/4” STRAIGHT 28% ST26 1-1/4” ROUND HOLES @ 2” STRAIGHT 31% ST27 1-1/4” ROUND HOLES @ 2” STAGGERED 31% 140 PERFORATIONS ST26 31.8mm ROUND HOLES 50.8mm STRAIGHT 31% ST41 15.9mm ROUND HOLES @ 22.5mm DIAGONAL 20% LT31 12.7mm ROUND HOLES @ 25.4mm STAGGERED 20% ST27 31.8mm ROUND HOLES @ 50.8mm STAGGERED 31% LT34 19mm ROUND HOLES @ 31.8mm STRAIGHT 28% ST40 15.9mm ROUND HOLES @ 31.8mm STRAIGHT 20%