I figured this door is 1970s
The nylon guides are broke or worn
Need help replacing. From what I see on your website it looks like I might need to replace/upgrade the with a new style including the trac.
Parts indetification

Home Owner from USA
Mar 21, 2024 3:41 pm
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2 Replies

Jasmine from SWISCO
Mar 25, 2024 9:25 am


Hello,
Thanks for posting! You have the old National bi-fold doors and we do carry a few of their parts in our inventory. If the tracks are still in a good condition, you'll need to reuse them.
Take a look at the 21-046 National Bifold Door Bottom Pivot and the 21-041 National Bi-fold Door Pin Assembly. As for the spring loaded guide pins, we only have the top nylon caps; the 21-113 National Bifold Door Pin Cap.
Carefully review and compare each of these parts to determine if they are the right fit for your door.


DImensions for 21-041

Side profile view with measurements

Alternate view with measurements
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