I used to do the same thing "L Girder" construction using Linn Westcott's methods. But I have since moved away as the quality of lumber has changed with the use of plantation pine. I now use manufactured "L Girders" using 1/2inch and 3/4inch plywood and use the same material for the rest of the baseboard construction. You still have to use a bit of timber for gussets, legs and things but I think I get a much more stable construction that is less prone to warping due to temperature and the use of airconditioning in the train shed. I have also used a masonite lath for the subroad bed which is also very strong and stable but is limiting in the size of curves you can bend it to. This is topped off with concrete expansion jointing and the track is glued to that.
Ozzie21
QUOTE (Makemineadouble @ 23 Jun 2006, 17:38)
<{POST_SNAPBACK}>I'd be intrested to know what you standards are for base boards. My normal method of construction has always been L girder. This has proved to very stable, and in the past when I've rebuilt a layout much of the construction timers have been reused with little modification. Thats not possible with my current project as the timber was left in South Africa, there are regulations relating to the import and export of untreated timber, the same as in Australia. So for the first time in many years I'm starting from scratch.