Tracks for sliding windows and cabinet doors -- where to buy?

[Andreus]

Prefer aluminum, in 4' lengths. Would like something that would be easy to attach to wooden window sash and sill.

For cabinet doors, track could be plastic, but must accept 1/4" door.

I'm having a hard time finding either, at those specs, through Google.

 

[rmwarren]

Found this by searching "aluminum bypass door channel":
http://www.thehardwarehut.com/door_track.php

RMW

 

[peter halle]

An excellent source could be Outwater Plastics.  When I was designing store fixtures with sliding doors I would often spec some of their products.  Tons of stuff out there in their catalogs and website.  You can do a search for sliding doors on their site and go from there:  Outwater Plastics

Peter

 

[Phred]

Not sure if this is what you're looking for, but they have lots of options.
CR Laurence

Any local glass shop can order it for you.
Phred