Bifold Doors

Quick Learner from Ft Lauderdale Florida for this project
Jan 15, 2025 10:35 am
I'm helping an elderly friend clean up her home and I want to fix this door. Should I replace the spring part?
4 user uploaded images
2 Replies

Paul from SWISCO
Jan 15, 2025 12:49 pm


Hello, thank you for posting,
We believe you have a National bi-fold door that is common in Florida. From your photos, the top pivot pin, 21-041 and the spring loaded guide pin 21-072 look fine. The problem seems to be the bottom 21-046 adjusting pin. You need to turn the pin clockwise to raise and square up the door to the opening. Raising the door will keep the top pivot pin and guide pin in the track. I do not see the bottom spring guide pin in your photos, so we aren't sure if the pin needs to be replaced as well.
Please review and let us know if you have any additional questions!
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