what is MDO plywood? What outdoor board does not warp?

Date August 5, 2010

I am an artist working in stained glass mosaic. I currently use a particle board base but am worried about warping. I also want to create work that people can put outside – like on a deck or outside wall. What sign boards are light, sturdy, do not warp and are waterproof? And 1/2 or 5/8" thick, more or less.

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3 Responses to “what is MDO plywood? What outdoor board does not warp?”

  1. Woodwerks said:

    MDO is Medium Density Overlay on exterior plywood. it is used to make outdoor signs. needs ext primer and paint, follow with spar varnish, or other ext topcoat.

  2. Matt M said:

    Ask for T- 1 eleven at home depot or lowes great for out doors and cheaper than marine plywood

  3. Dan the brick man said:

    i wouldnt use anything less than 3/4 in. marine plywood…

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