"Clark Moss" wrote in message
...

What is the minimum recommended bench top thickness when using bench-dogs or
other types of hold-fasts?

I'm replacing the top of my work table with some 1.25 inch thick butcher
block. I'd like to add some 3/4 inch holes for hold fasts.

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For well supported steel tops 1/4 inch works very nicely.

For plank and pin wood tops I'd say 2 inches. Again well supported.