HO Boxcar and Reefer Running Boards
Three roofwalk tread patterns are available for the 40 ft. and 50 ft. boxcars.
Standard round pattern(Morton)
Slotted pattern (Apex)
Diamond shaped opening pattern(Gypsum)
A generic 60ft boxcar roofwalk (62' 6" actual) is also available in Apex pattern.
Other features of these boxcar roofwalks are separate side platforms and a brake platform with a matching tread: