HO TRACK WIDTH INQUIRY

Greetings. A quick trivia question from someone with no experience with model trains. WHAT is the width, in milimeters, between the tracks in HO
scale?? (Obviously we don’t have a sample of HO track handy or we’d measure it ourselves.) We purchased 3 sets of toy trains during a close-out sale at KB toys for our 5-year-old son. The sets came with their own track … molded in plastic.
We’re working on a small layout and rather than taking our dremel tool to the existing toy track and modifying it for a pair of scratch-built
bridges, we were hoping that we could add some conventional HO scale track to supplement the toy set’s track. Any assistance would be appreicated. - Eric

The distance between tracks can be any width in any scale, but if you mean the distance between RAILS in one track, it is 16.5 MM in HO scale.

Hi Gregg,
Acknowledged. Thank you.
Eric