Replies

1. 
   BobSmalser | Dec 22, 2007 09:00am | #1

   You don't have to use marine plywood to build to the marine standards called for in a wet application. Be aware many nondurable woods....including non-marine plywood....are subject to mold in situations that crumble MDF.

   Depending on what the table is used for, either one of the cedars, one of the true mahoganies, cherry, walnut, sassafras, etc will all work nicely if you soft mount the top for expansion and contraction. I like shop-made hardwood buttons in a waxed groove.

   If you insist on sheet goods, "Signal MDF" used for roadway signs holds up well under epoxy or paint in marine environments. It's usually cheaper than marine plywood.

   Be sure to use marine fasteners, and dipping your screws in a bedding compound like poly plumber's caulk will lengthen the life of the top. Another marine practice to reduce the seasonal movement that shortens the life of finishes is to prime the wood with CPES - Clear Penetrating Epoxy Sealer - before varnish or paint.

   
   

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   Edited 12/22/2007 1:11 am by BobSmalser

1. 
   KiddervilleAcres | Dec 22, 2007 04:52pm | #2

   Bob,

   Just curious but what about using White Oak, even QSWO if solid wood is preferred?

   Regards,Bob @ Kidderville Acres

    

   A Woodworkers mind should be the sharpest tool in the shop!

1. 
   BobSmalser | Dec 22, 2007 04:55pm | #3

   WO is fine.

2. 
   BruceS | Dec 23, 2007 03:30am | #4

   Considering your location go for cypress.

   Work Safe,  Count to 10 when your done for the day !!

   Bruce S. 

    

3. 
   mrbird90 | Dec 24, 2007 12:49am | #5

   My choice would be cedar or cypress, which ever is less expensive in your area. Both will work fine, take paint well and will not rot, and are light weight. (about the same as pine). All the other options mentioned are ok except I have not had good experience with cherry out side or in a moist area.

4. 
   BobSmalser | Dec 24, 2007 01:19am | #6

   Using a stable wood is a good point, in that the denser woods like cherry should be acclimated to the location before construction. Cherry or walnut kilned to 7% can cause problems beyond soft mounting if it swells to 16% in that environment.