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Help with end grain cutting board cracking problems

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Forum topic by indychip posted 05-25-2016 11:17 AM 977 views 0 times favorited 6 replies Add to Favorites Watch
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indychip

79 posts in 1905 days


05-25-2016 11:17 AM

I just completed several end grain cutting boards for a customer. This morning I woke up and noticed a bunch of little cracks all over the end grain. What happened? Could the wood have been too wet when I glued up and cracked when it began to dry? Is it time to buy a moisture meter?


6 replies so far

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Tennessee

2522 posts in 2297 days


#1 posted 05-25-2016 12:24 PM

Seems like you’ve answered your own question.
I don’t know what the moisture content of your wood was, but obviously it was too high for the application.
I keep two moisture meters on my bench, and use them often. Many times I re-rack a piece of lumber if it is too high.

-- Tsunami Guitars and Custom Woodworking, Cleveland, TN

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firefighterontheside

16465 posts in 1639 days


#2 posted 05-25-2016 12:36 PM

Were you using different kinds of wood, possibly one that was much drier than the other. As the wetter one dried it would not be able to shrink and would crack.

-- Bill M. "People change, walnut doesn't" by Gene.

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indychip

79 posts in 1905 days


#3 posted 05-25-2016 05:14 PM

Thanks for the responses. I was using multiple types of wood. The only one with cracks was the walnut. Obviously that was too wet.

I see different types of moisture meters. Pin type and non pin type. Which is best?

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firefighterontheside

16465 posts in 1639 days


#4 posted 05-25-2016 06:18 PM

Pin type you push in and get a better measurement of the interior wood.

-- Bill M. "People change, walnut doesn't" by Gene.

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Aj2

1126 posts in 1581 days


#5 posted 05-25-2016 10:46 PM

When you built them did you clamp the c**p out of them to close up gaps.And add lots of glue that’s s mostly water.

I’m just thinking if you started with high mc wood you would have noticed before you got this far.

-- Aj

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Kelly

1770 posts in 2727 days


#6 posted 05-26-2016 04:33 PM

oil, oil, oil (non-hardening (mineral oil))

Don’t wipe it off. Let is soak in.

I’ve done this to end grain butcher blocks and it swelled the wood up and closed the separations and cracks. Since the oil doesn’t evaporate, you just keep adding to, eventually, saturate the wood. With oil replacing the lost moisture, the block won’t shrink, thus will not crack and split.

Of course, you have to be mindful of that your customers may not be too hot on maintenance, so your project may go south after the fact.

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