I tried using 5/4 ash on a 60x60 table bottom inset. Laminated 5 boards together. It flexed to much after getting it in the rabbet. Lesson learned. Went back and got a oversized sheet of 3/4 ply. Much more stable.
I tried using 5/4 ash on a 60x60 table bottom inset. Laminated 5 boards together. It flexed to much after getting it in the rabbet. Lesson learned. Went back and got a oversized sheet of 3/4 ply. Much more stable.
Thats unbelievable a full 1 1/4 solid ash panel insert was more flexible then 3/4 plywood. Are you sure
Aj
Short answer- yes, it'll make the span with light loads, ash is pretty strong.
Make it a nice piece, good on both sides and edges, make it removable (mount on shelf pins,cleats etc..)
Put it in, if it begins to sag over time, flip it over
Done
Im going to assemble the top with dowels and glue. It will be attached to the unit with regular table top fasteners. So it will be removable if I end up needing a support under it
A sketch of your project would be most helpful. I've found the sagulator to be quite accurate. Be sure you use the finished thickness of your top piece for the calculation. A 60" span for 1-1/4" thick ash shouldn't be fine. I have a 50" span of 3/4" hickory that holds a computer monitor and I can sit on it with less than 1/4" deflection.
Lee Schierer
USNA '71
Go Navy!
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If it sags, add a decorative stiffener on top.