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Tracy Van Niel, FCSI, CCS
Senior Member
Username: tracy_van_niel

Post Number: 363
Registered: 04-2002


Posted on Monday, June 16, 2025 - 10:16 am:   Edit PostDelete PostPrint Post

Hi all, I am currently reading SDI standards trying to find this but figured I would ask here too to tap into collective wisdom.

We have a project where knockdown frames were allowed. We have a crappy installation in that the joints at the top corners have big gaps, you can even see the tabs. (I was hoping to post a photo from the PM but am not able to because my computer keeps telling me the site is unsafe so won't let me upload.) Where can I find information on a tolerance for that joint that will hopefully help us out so we can get a better appearance.
Tracy L. Van Niel, FCSI, CCS
David Stutzman
Senior Member
Username: david_stutzman

Post Number: 105
Registered: 07-2002
Posted on Monday, June 16, 2025 - 12:21 pm:   Edit PostDelete PostPrint Post

Hi Tracy, SDI A250.11 Recommended Erection Instructions for Steel Frames includes tolerances for frame plumb and square. The tolerance is set at 1/16 inch for the height of the frame jamb (plumb) and 1/16 inch for the width of the frame head (square). SDI A250.8 Specifications for Standard Steel Doors and Frames sets clearances between the door and frame of 1/8 inch with maximum tolerance of 1/32 inch. Since the head joints are open the clearances from the door to the frame probably exceed what is allowable.
Tracy Van Niel, FCSI, CCS
Senior Member
Username: tracy_van_niel

Post Number: 364
Registered: 04-2002


Posted on Monday, June 16, 2025 - 01:47 pm:   Edit PostDelete PostPrint Post

Thank you, David! I appreciate the heads up on where to look.
Tracy L. Van Niel, FCSI, CCS

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