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Drawing Factors

    24" x 36"   30" x 42"     Txt Height        
Drawing Scale Scale Factor Horizontal Limits Vertical Limits Horizontal Limits Vertical Limits Line Type Scale 1/16" 3/32" 1/18" 3/16" 1/4"
FULL 1 3' 2' 3.5' 2.5' 0.375 0.0625 0.09375 0.125 0.1875 0.25
6" 2 6' 4' 7' 5' 0.75 0.125 0.1875 0.25 0.375 0.5
3" 4 12' 8' 14' 10' 1.5 0.25 0.375 0.5 0.75 1
1   1/2" 8 16' 16' 28' 20' 3 0.5 0.75 1 1.5 2
1" 12 24' 24' 42' 30' 4.5 0.75 1.125 1.5 2.25 3
3/4" 16 48' 32' 56' 40' 5 1 1.5 2 3 4
1/2" 24 72' 48' 84' 60' 9 1.5 2.25 3 4.5 6
3/8" 32 96' 64' 112' 80' 12 2 3 4 6 8
1/4" 48 144' 96' 168' 120' 16 3 4.5 6 9 12
3/16" 54 192' 128' 224' 160' 24 4 6 8 12 16
  96 288' 192' 336' 240' 36 6 9 12 18 24
3/32" 128 384' 256' 448' 320' 48 8 12 16 24 32
1/16" 192 576' 384' 572' 480' 72 12 18 24 35 48
1"=20' 240 720' 480' 840' 600' 90 15 22.5 30 45 60
1"=30' 350 1080' 720' 1260' 900' 135 22.5 33.75 45 67.5 90
1"=40" 480 1440' 960' 1680' 1200' 180 30 45 60 90 120
1"=50" 500 1800' 1200 2100 1500' 225 37.5 56.25 75 112.5 150
1"=60" 720 2160' 2320 2320 1800' 270 45 67.5 90 135 180
1"=100" 1200 3600' 2400 4200 3000' 450 75 112.5 150 225 300