How thin can an end grain cutting board be?

I made some from walnut and hard maple. They were about 7/8” thick when finished. They have stayed flat and seem to be holding up OK.

-- Lew- Time traveler. Purveyor of the world's finest custom rolling pins!

I have made them down to 3/4” with no issues to speak of. Thick boards are great, but sometimes people just want a lightweight board to use. Moving around a large beast all the time is the biggest complaint I hear about the thick boards I make.

I will not make my boards thinner than 1&3/8 when they are under 12 X 16.
if they are 12 X 16 or 12 X 18 I make them 1&1/2
anything wider than 12 or longer than 18 I step it up to 1&3/4
16 X 22 or 18 X 24 I make no less than 2”
this is what my experience tells me, but then again, I do sell them to people. If it is for yourself, I would definitely NOT go under 1&3/8”
Just my opinion

-- Childress Woodworks

Seems to be some variation in opinions. The first one I made is 1&1/2” thick (maple and purpleheart) and it’s a really heavy beast.

More opinions welcome if you read this post.

-- Northern California http://www.lloydus.com