Planning new FWWR layout

[FCIN]

Will be installing a tank car loading platform from Walthers. Does anybody know the track spacing for this? Dont currently have the kit in my hands, think that 3-1/2 inch should be OK but starting to plan track arrangement and it would help to know for sure.

Sorry I didn't see this sooner, but this link should answer your question: http://www.walthers.com/exec/productinfo/933-3104. I have one of these kits that I have not assembled, but doing some quick measurements, it appears to be as described as far as length and width. I need to order a second one of these as it's too short my planned facility which will be very similar to yours, but with on a single track on one side of the platform, so I really need to splice two of them together.