Thread: O scale ballast
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Old 16th August 2010, 18:14   #4
TCWORLD
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Default Re: O scale ballast

Track ballast in prototype is usually 1.5" to 2.5" give or take.

SCALE---FINE------MEDIUM----COARSE

Z------2.2"-7.3"----7.3"-11"---11"-18.3"
N------1.6"-5.3"----5.3"-8"-----8"-13.3"
HO---- 0.9"-2.9"---2.9"-4.3"---4.4"-7.2"
S------0.6"-2.1"---2.1"-3.2"---3.2"-5.3"
O------0.5"-1.6"---1.6"-2.4"---2.4"-3.9"

That table then suggests that Medium ballast would be the best, though you could mix bothe the Medium and Coarse to get more variation in sizes.
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