Reply to "UPDATE: Shelf Construction Begins! - Office Lobby Shelf Layout"

+1 on Birch plywood.  I have pieces (circular and straight) for elevated track on seasonal layouts that get stored in the garage.  No warping over several years of crappy summer storage in mid-Atlantic heat and humidity.  Cannot say the same for softwood ply.  I would not touch MDF as it needs support on all edges to retain its shape over time.

I concur with leaving the outside corners on for stiffening.

To support a long bridge, use angle or square tubing under the bridges.  I find that aluminum angle with 1/8" walls is stiff for supporting bridges.  You might consider aluminum U-channel of a width that matches the underside of the bridges - it will be very stiff even over long spans.  Check out onlinemetals.com for available shapes.

 



OGR Publishing, Inc. PO Box 218, Hilliard, OH 43026 330-757-3020
www.ogaugerr.com
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