End grain, yes (mostly)...cutting board, no. I made a set of these coasters for my dad for Fathers Day. They are 4 inches square and about 3/16 of an inch thick. The woods include cherry, walnut, spalted maple, purpleheart and leopard wood. They have 5 coats of polyurethane, which I hope will protect them from moisture. I added cork feet as they are incredibly smooth and slick…I hope this will keep them from sliding on a table. The truth is, according to mom, they will not be used as coasters but rather appreciated as art in the living room. Just like a mom huh? I am north of 50 years old and she is still hanging my stuff on the fridge. Thanks for looking.