Activity Feed › Forums › Floor Prep › Henry 549 Floor Prep Henry 549 Posted by Timothy on September 21, 2021 at 5:45 pm How deep/shallow can I go with Henry 549 on a plywood sub floor? I’m worried about it cracking/crunching later. Timothy replied 2 years ago 2 Members · 2 Replies 2 Replies Joe Administrator September 22, 2021 at 9:12 am http://somup.com/crQ32lrJH6 Timothy Member September 22, 2021 at 2:51 pm Thank you! Applying that product was much easier than I expected. It’s all in the wrist! Log In to Reply Public All Members My Connections Only Me PublicAll MembersMy ConnectionsOnly Me Public All Members My Connections Only Me Log In to Reply Start of Discussion 0 of 0 replies June 2018 Now