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Walnut and Hickory Box joint stability

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Forum topic by Shirk99 posted 08-15-2017 10:21 AM 530 views 0 times favorited 2 replies Add to Favorites Watch
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Shirk99

3 posts in 126 days


08-15-2017 10:21 AM

I am building a hope chest for my step daughter. My wife wants me to use hickory front and back with walnut sides with finger joints. Is this combination going to be stable? I believe hickory moves more than walnut?
Thank you


2 replies so far

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jdh122

963 posts in 2657 days


#1 posted 08-15-2017 10:58 AM

It’ll be fine. By my calculation there’s about 1/1000th of an inch difference per inch of width with maximum seasonal contraction (from 8 to 14%). In reality it’s likely to be less, given the use of a finish and the fact that it’s unlikely that the moisture is at the maximum or minimum when built. Each individual finger will very easily absorb that much difference. In fact I doubt there really are wood combinations that are incompatible for this reason.

-- Jeremy, in the Acadian forests

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splintergroup

1705 posts in 1062 days


#2 posted 08-15-2017 02:13 PM

I agree w/Jeremy. The shrinkulator shows roughly the same coefficients of expansion between the two woods

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