I am making a large quartersawn white oak dining table (46”x88”). The wood is well dried straight grained and stable. It will be a glue up of four 5/4” x 12” planks, so finished dimension about an inch thick. It will be a trestle table so there will be two 30” long attachments points at the top of the trestles (perpendicular to the top). My question – do I need additional perpendicular “ribs” on the underside of the top to keep it flat and prevent cupping. I have seen these in some designs including in commercial table tops a recessed metal ‘ribs’. I would like to avoid adding, but not ant the expense of a stable table top. All input welcome. Thanks. Doug
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Replies
No
Several years ago I built a similar sized table in teak. I used the plan from FWW #262. It is still as flat as the day it was completed. You might want to take a look at the plan. It does have additional “ribs”.
Thanks. I checked out the table - intricate design on the underside with four ‘ribs’. I wonder weather did this because it was a slab? Feels secure but may be overkill!? Thanks.