ijdagger gave us this link on our other forum.

An interesting article about making the baseboard and track laying bed out of splines.  A different approach to the conventional baseboard.

Masonite splines

The link above tells you all you need to know about making a spline sub-roadbed. Lots of relevant pictures as well.

Here are some photos of a spline sub-roadbed under construction on my N gauge GWR, West Wales layout. (More of which can be found in the personal layouts section)

I like spline sub-roadbed construction, it makes transition curves easy. Both horizontally and vertically.

4 out of 10 splines glued and clamped in place to dry.



A close up of the above


All 10 splines glued and dry ready for cork and track


A closeup showing the L-girders, Joists, risers and spline road sub-roadbed.


… and cork roadbed and track laid.

Very helpfull Marty, shows exactly how it's done.