How to prevent router table sag? - Page 2 - Router Forums
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post #11 of 14 (permalink) Old 06-17-2013, 08:50 AM
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Or you can just build a table top out of 3/4" Baltic birch plywood with laminate on both sides. When properly supported with a 1/2" Baltic birch plywood cabinet it will not sag.
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post #12 of 14 (permalink) Old 06-17-2013, 09:36 AM Thread Starter
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Thanks, Richard, for the tip on polyurethane...I don`t have much experience with shellac, but poly is easy
Mike, thanks for mentioning the Baltic birch. I`ve been planning to use MDF for a table saw extension, but I need 28`x 27`and can`t find anything other than 2 x 4 (too small) or 4 x 8 (too big) sheets in MDF. Would a double thickness of ply work as well? Most contributors seem to favour the MDF. Is there a reason for that?
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post #13 of 14 (permalink) Old 06-17-2013, 10:28 AM
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Price is a big factor Paul. Something to consider: floors are not made from MDF... get my point?

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post #14 of 14 (permalink) Old 06-20-2013, 11:52 PM
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How to prevent router table sag? Keyword Support How Much? Depends IMHO MDF tries to curl when you dado a mitre track into it. I dislike 2 X 4 on edge cause they seldom are straight enough. I ripped 3 1/2" strips from 3/4 ply and built a box frame by doubling them on edge. I thru bolted from top. Its never moved but if it does I can loosen bolts and shim

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