I've recently migrated into 2 Rail "O" Scale but have decades of experience in "HO" scale.
Planning on DC operations and will be placing main bus wiring directly under the tracks. One bus for each of the two mainlines with sidings and small yards all wired in block formation. One day perhaps returning to DCC operations. My room size is 14 by 28.
Here's my question. Providing wiring drops from the tracks to the bus. What spacing would be recommended?
I use number 18 gauge wire for drops and would recommend 16 or heavier for the bus if there is a chance that you will eventually install DCC. Unless you solder your rail joints together, you should have a drop for each rail section.