A Question Please-flat car width

Standard width for PRR flat car decks was 9' 0" or 2 1/4" in O-scale.  I suggest installing your "keep-crane-on-the -car" wooden rails on the inside edges of the tracks.

If you go to Rob's PRR pages

http://prr.railfan.net/diagram...at&sz=sm&fr=

You can check the equipment diagrams of the flat car you are interested in.  Almost all PRR flat cars are 9' 3" except for specialty cars.

Jan

Thanks to Bob and Jan. I actually had looked at the site of equipment diagrams-and the actual crawler crane used by the PRR  was narrow enough to fit on a standard PRR flatcar. The crane I  am thinking of using for my model  ( EMD-Bucyrus-Erie 22B Clamb and Crane) is apparently wider than the prototype and hence would need a wider car. Even if I put the guard rails on the insides of the tracks, the tracks would overhang the deck-so I maty have to put another deck on a standard flat car itself, being careful, of course, not to create too much of an overhang.  Thanks again!!