Your right, I did ask for help with this subject, in February, thanks again for helping.
When you asked this same question in February, I recommended NMRA S-8.http://cs.trains.com/mrr/f/11/t/268494.aspx
This NMRA standard shows how track-center-to-track-center spacing must vary depending on curve radius and equipment type. That's still a good place to start.
The added complication of the WS risers makes this a little trickier. I believe that the risers are only made 2 1/2” wide, so three N scale tracks plus adequate spacing outside the tracks may be too wide for a single riser. This is because the track-center-to-track-center spacing must be wider for sharper curves to avoid side-swiping. In that case, you may need to slice some thinner pieces from the stock risers to place alongside the main riser. Or instead cut your roadbed from a sheet of foam to the necessary width.
Good luck with your layout.
Byron
Layout Design GalleryLayout Design Special Interest Group
Everything you need is here:
https://www.nmra.org/sites/default/files/standards/sandrp/pdf/rp-7.1_tangent_track_centers_and_clearance_diagrams_july_2017.pdf
For the complete listings of Standards and Recommended Practice go here:
https://www.nmra.org/index-nmra-standards-and-recommended-practices
Hope that helps,
Ed
When I was in N scale I spaced parallel mainline tracks about 1 3/8" apart.
.
-Kevin
Living the dream.
Hey All
I hope your spring is going well, today here in Portland it hit 85 degrees!!! So summer can't be far behind, I have a question about Nscale track measurements, I"m rebuilding a section of my layout that needed it badly, I want to add a dbl mainline with a siding, ( 3 tracks) , I will be using woodland scenic risers for my base, now what is the measurements between tracks, and would this work!
Thanks for the help on this matter,
Happy modelrailroading!!!
Trainsrme1 [8D)