Reply by Sycamoray

  • Advertise with us

Posted on Floating Mullion Question

View Sycamoray's profile


97 posts in 479 days

#1 posted 10-12-2020 03:20 PM

Thanks, Gary. I think I now understand what you’re asking.

Assuming a non-film finish, I would advocate a gap of around 1/32”. If you hit a perfect zero gap, the mullion will rub against the head. If you’re going to finish with paint, poly, or some other film finish, I’d try to factor in the thickness of the coats you’ll be applying. Otherwise, the mullion will rub the finish right off the head and vice versa.

Many folks who make floating mullions place it outside the plane of the face frame. It then has a complete overlap with the head on that side. On the inside, they just match the measurement of the reveal around each sash.

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