There is plywood and then there is plywood-what you get depends on the grade and the purpose for which the plywood is made. They typical stuff you get at Home Depot and Lowe's may well be expensive but it is not of particularly high grade. The Baltic birch plywood discussed earlier is of a higher grade; it does not have voids. At least, if it does, I've not yet found them. ddf Delwin D Fandrich Piano Design & Fabrication 620 South Tower Avenue Centralia, Washington 98531 USA del at fandrichpiano.com ddfandrich at gmail.com Phone 360.736.7563 From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of James Sasso Sent: Friday, February 18, 2011 8:54 AM To: pianotech at ptg.org Subject: Re: [pianotech] Bottom Board Material I once picked up an old pedal pumper player at a beach house shed that was literally sitting in the sand. It needed a new bottom. All the players I've bought and sold had hard wood bottoms painted flat black. I cut a piece of plywood that matched the bottom dimensions and fitted it to the bottom. Plywood can and does have interior holes, spaces, and more. When I put the pedals for the trapwork back on, guess where the screws lined up! You guessed correctly--right over interior unseen holes in the plywood. If you've got the maple, I'd use that and depending on the age and type of the piano, paint might work and definitely be easier than veneer. You might want some customer input on that. Jim Atlantic Player Piano -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20110218/f7130352/attachment.htm>
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