Bi-Fold Doors

We offer a complete line of folding doors in a wide range of sizes, designed to enhance any home, office or commercial building. Our in-house shop can cut and build units for almost any opening.

Highly mixed orders and non-standard sizes are not a problem for Marwin. We can arrange pre-paid shipments of various combinations of any of our product lines. Plus, we can ship your custom order within days, not weeks. Marwin works to get you what you need, when you need it.

  • Wide range of materials, ready to stain, paint, or varnish
  • Doors to fit any opening up to 24' are kept in stock
  • Larger sizes available on special order and built to customer specifications
  • All Bi-Folds available in 6'8", 7', and 8' heights
  • Flush Birch, Lauan, Hardwood available
  • High grade steel or aluminum hardware standard with all units
  • 2 door units: 1'6" to 4'0"
  • 4 door units: 3'0" to 8'0"
  • 8 door units: 6'0" to 12'0"
  • 12 door units: 9'0" to 18'0"
  • 16 door units: 12'0" to 24'0"
  • Any heights from 1' through 8' available on special order
  • Units for openings wider than 24' available
  • 1 3/8" door thickness available for most sizes
  • Heavy-Duty hanger-type hardware used on all openings wider than 8'
  • Stiles on special sizes will vary from 1 1/4" to 2 1/4", depending on dimensions

  • (for finished openings)

  • Widths
  • Door unit width is exact.
  • Example: 4'0" = 48"; 5'4" = 64"; etc.

  • Heights
  • 6'8" door requires 80 3/4"
  • 7'0" door requires 84"
  • 8'0" door requires 96"

  • (doors are undersized to fit the finished opening)
  • Standard Widths:
  • 2/0, 2/4, 2/6, 2/8, 3/0,
  • All 3/6 in Height