Reply by WDHLT15

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Posted on maple slabs drying

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1732 posts in 2446 days

#1 posted 08-10-2012 11:29 AM

The reason that the slab on the left is cracking is because it is drying too fast. The shell dries faster than the core, setting up the stress that causes the cracks. You have to slow the drying down. Stacking them together under cover with stickers, like Herb said, keeps the humidity higher around the wood, slowing the drying. They do better together in a herd in the stack. A single 8/4 slab stood up all by itself to dry will almost always certainly crack and check. Here in Georgia, 8/4 maple will dry in about 1 year. The 1” per year rule of thumb is actually not very accurate. The time to dry is a function of species, temp, humidity, and thickness.

-- Danny Located in Perry, GA. Forester. Wood-Mizer LT40HD35 Sawmill. Nyle L53 Dehumidification Kiln.

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