Free 186 More Best Homemade Tools eBook:  
Get 2,000+ tool plans, full site access, and more.

User Tag List

Results 1 to 5 of 5

Thread: Measuring a sealed unit thickness

  1. #1
    Supporting Member olderdan's Avatar
    Join Date
    Jun 2016
    Thanked 1,567 Times in 467 Posts

    olderdan's Tools

    Measuring a sealed unit thickness

    Double glazed units have variable size thicknesses, to measure this without deglazing for replacement needs a special tool to measure around the frame profile.
    A commercial tool is available but for a one off its not worth it.
    Name:  Screen Shot 06-10-24 at 11.49 AM.jpg
Views: 440
Size:  6.4 KB

    A simple mod to an outside caliper using an eccentric disc will do the same job.
    Measuring a sealed unit thickness-img_20240613_102650042.jpg
    Clamp the caliper on the glass, rotate the disc and lock it, after removal the caliper can be closed to the disc retaining its original position.

    Measuring a sealed unit thickness-img_20240613_104624787.jpg

    Height and width are typically minus 10mm from the frame bead joint.

    2,000+ Tool Plans

  2. The Following 7 Users Say Thank You to olderdan For This Useful Post:

    Bony (Jun 24, 2024), lassab999 (Jun 17, 2024), mklotz (Jun 14, 2024), Moby Duck (Jun 16, 2024), PJs (Jun 15, 2024), Tonyg (Jul 7, 2024), uv8452 (Jun 24, 2024)

  3. #2
    Content Editor
    Supporting Member
    DIYer's Avatar
    Join Date
    Aug 2013
    Thanked 1,864 Times in 1,663 Posts

    Thanks olderdan! We've added your Thickness Caliper to our Measuring and Marking category,
    as well as to your builder page: olderdan's Homemade Tools. Your receipt:

    2,000+ Tool Plans

  4. #3
    Supporting Member mklotz's Avatar
    Join Date
    Aug 2015
    LA, CA, USA
    Thanked 6,468 Times in 2,135 Posts

    mklotz's Tools
    Despite seldom having to make obstructed measurements like this, I like this idea of resettable calipers. I can think of a few other uses for this added feature. If one has calipers with a screw adjustment, adding a stop nut to the threaded rod provides this refinement.

    Other approaches to the problem...

    Measure across a block held to one side of the glass. The block must be large enough to force the calipers to be opened far enough to clear the obstruction. Subtract block width from caliper measurement.

    Simply open the calipers far enough to clear the obstruction and measure their opening. With one arm against the glass, measure the distance of the other arm from the (other side of) the glass. Subtract the latter measurement from the former.
    Regards, Marv

    Home Shop Freeware

  5. The Following User Says Thank You to mklotz For This Useful Post:

    RetiredFAE (Jun 15, 2024)

  6. #4
    Supporting Member gatz's Avatar
    Join Date
    Feb 2016
    Thanked 144 Times in 50 Posts

    gatz's Tools
    Simplicity at its finest. Great idea !

  7. #5
    Supporting Member Bony's Avatar
    Join Date
    May 2015
    Tasmania, Australia
    Thanked 179 Times in 64 Posts

    Bony's Tools
    A good idea with application for other measuring tools. So simple yet so effective (why didn't I think of that). Thanks.

    2,000+ Tool Plans

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts