Searching for Heavy duty bifold track and hardware

A quick learner says:
I would like to replace both tracks and upper and lower brackets on my bi-folds. I have four panels for my 5 ft. Opening. The doors are very heavy as they are 6-panel oak. I will attempt to email a picture.
bifold guide
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Paul from SWISCO responded:
Thanks for your photo. We actually carry the newer hardware for what you are showing us. For your track, our 23-455 is worth considering. The bottom pivot bracket can be substituted with our 23-312 and for the door fittings, our 23-121 top pivot guide should also work for you. Lastly, for the bottom pivot, our 23-151 may be used as a replacement. I encourage you to review each part to see if you agree.
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