Shrinkage in Pressure Treated Post
Shrinkage in Pressure Treated Post
(OP)
I'm working with a homeowner restoring and repairing an old house. In the basement we re-supported the main floor girder with (3)-8x8 pressure treated posts. Another contractor at the site bought up the concern of shrinkage. The posts are about 7 feet tall. I'm looking for info on an approximate magnitude of shrinkage in the longitudinal direction.
Shrinkage for green wood in longitudinal direction is about 0.1% - 0.2% So we are talking about an 1/8". I'm telling the owner, it's a valid point....but not a concern.
Your thoughts, links, opinions appreciated.
Iron-mon
Shrinkage for green wood in longitudinal direction is about 0.1% - 0.2% So we are talking about an 1/8". I'm telling the owner, it's a valid point....but not a concern.
Your thoughts, links, opinions appreciated.
Iron-mon






RE: Shrinkage in Pressure Treated Post
Dik
RE: Shrinkage in Pressure Treated Post
The other question would be is pressure treated wood required. If the basement has a concrete floor by using a steel base plate 1" thick, you probably do not need treated wood.
The use of untreated wood would be a cost savings.
RE: Shrinkage in Pressure Treated Post
RE: Shrinkage in Pressure Treated Post
And I do think it is prudent to use either steel (my first choice) or treated wood for posts in basements.