What size Bilco door do I have?

Most Bilco doors come in these standard sizes:

  • Size C: 46" x 44" (most common residential)
  • Size B: 60" x 44" (larger basements)
  • Size D: 46" x 56" (deeper basements)
  • Size E: 60" x 56" (largest residential)
  • Custom sizes: Available for non-standard openings

To determine your size, measure the opening width and length. Check the door label or contact EcoSpect at (315) 757-4306 for identification help.