Allowing for Shrinkage and Swelling

  • Advertise with us

« back to Woodworking Skill Share forum

Forum topic by HorizontalMike posted 425 days ago 384 views 0 times favorited 4 replies Add to Favorites Watch
View HorizontalMike's profile


6925 posts in 1545 days

425 days ago

Topic tags/keywords: shrinkage swelling species allowing for

OK, we all know this happens and that we should always allow for this to happen in our projects.

BUT how much:
  • per inch of width?
  • per Species of wood?
  • in the deep South?... of far North?

All of the literature says to allow for this, but I am lost as to finding any reference source that tells me that a 9in(or 4in, etc) wide pine board will need xxx fraction of an inch of space for expansion/contraction.

Help me out folks, is there a source I am missing, you know… that one source that eludes me?

-- HorizontalMike -- "Woodpeckers understand..."

4 replies so far

View IrreverentJack's profile


724 posts in 1474 days

#1 posted 424 days ago

Just quickly I could point you to chapter 7 in Hoadley's -Understanding Wood – ‘Coping with Dimensional Change in Wood’. Matthias Wandel has some info on WoodGears too. Good luck. -Jack

View redSLED's profile


687 posts in 524 days

#2 posted 424 days ago

A bathing suit is also important to consider regarding shrinkage and swelling of wood. Considerations may be different in the deep South.

-- Perfection is the difference between too much and not enough.

View robdem's profile


324 posts in 1237 days

#3 posted 424 days ago

Mike just looking thru my lee valley catalog they have a wood movement chart Has 73 wood species on it also gives range from 30% to 0% moisture range it’s on page 23

View RPhillips's profile


416 posts in 467 days

#4 posted 424 days ago

LMAO! The wife seen this topic and just started laughing….

-- Rob - Indianapolis IN - Learning... one mistake at a time...

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics

Latest Projects | Latest Blog Entries | Latest Forum Topics :: gardening showcase