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Rail Size & Track Codes| Standard | Weight in Pounds | Height in Inches | S 3/16 - Proto:64 | 
| PRR | 152 | 8.000 | .125 | 
| AREA | 140 | 7.312 | .114 | 
| " | 132 | 7.125 | .111 | 
| " | 115 | 6.625 | .103 | 
| " | 100 | 6.000 | .094 | 
| ASCE | 90 | 5.375 | .084 | 
| " | 85 | 5.188 | .081 | 
| " | 80 | 5.000 | .078 | 
| " | 75 | 4.812 | .075 | 
| " | 70 | 4.625 | .072 | 
| " | 65 | 4.438 | .069 | 
| " | 60 | 4.250 | .066 | 
| " | 55 | 4.062 | .063 | 
| " | 50 | 3.875 | .060 | 
| " | 45 | 3.688 | .058 | 
| " | 40 | 3.500 | .055 | 
| " | 35 | 3.312 | .052 | 
| " | 30 | 3.125 | .049 | 
| " | 25 | 2.750 | .043 | 
Chris Palomarez, Santa
Barbara
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