Hi All -
I bought a wooden countertop at a high-end cabinet shop's yearly yard sale last summer. It's 90"L x 25"W x 1.5" thick. I brought it home on the top of my jeep, and it cupped. Good side up, the cup is center up along the length about 3/8 inch, over 1/3 of the length from the left edge. It did not settle over the past year.
The edges are doubled 3/4 inch boards, and the field is 3/4 inch also.
I'm condsidering kerfing the underside to flatten to the top. My start would be 3/4 or maybe 7/8 inch deep kerfs thru the doubled boards on the affected end, probably at 1/2 inch spacing.
It's destined for the workbench, and the investment was $40, so I can experiment.
I saw Norm do this with a burned board on an end-table in the NYW, but I swear he broke it by the sound of the crack.
How deep would you go, and how often would you do it? Or, what would you do otherwise?
Thanks in advance.
...best, Capt N.