Track and roadbed construction questions

I use Flexxbed classic with Atlas track so I can answer a few of your questions.

1) Flexxbed classic is 3 inches wide at the base(bottom) and about 2.6 inches at the top.

2) It will easily bend to match O64 curves. Just put the flexxbed under the track and slide it to match the curve of the track.  I then just screw the track down through the pre-drilled holes in the ties.  Gargraves track is a little different than Atlas because it does not have pre-drilled holes. Here is a link to the Gargraves page (3rd question from top) that explains how to attach their track to your table.

I do not use glue to hold down the flexxbed because I am happy with the way it is secured by the track and screws. 

John, thanks for the info.  I was wondering about drilling pilot holes in ties; that seems to be the recommended approach.

One last question, did you use the 1/4 inch or 3/8 inch? I wanted to use 1/4 inch if this has reasonable sound absorption.

I used the 1/4 inch and I am happy with it.

KENJR Please post some pics of your progress we love that stuff here. Nick

Thanks John.  Nick, I will order some flexxbed tomorrow and get some pictures posted. I'm going to use the bed on the second level. I built my lower level using fastrak.

just fyi... i've put down cork a tight as 027.  because of its split nature it's also easy to follow a centerline.

Atlas track, because it is solid and Ross and GarGraves are tubular, is inherently quieter than the other two.  Not sure how much the thickness of the Flextrak John used influenced the sound level on his layout, or how relevant use with Atlas track will be for Ross/GG with respect to sound level.

I've ordered the flexxbed for my upper level plus extra for my future trolley line.  A couple of pics on current progress.

Ken,

The layout looks great. I like the way you did the upper level supports.

I saw that style in a picture several years ago so I made several with 2x4 and band saw.  They work out nicely for my layout and cheap