Best Pet Doors by Design™

At Best-In-Glass Dog Doors, we recommend using Max-Seal Pet Doors by Security Boss. Over the past 10+ years, we’ve found that these particular dog doors are of the highest-quality, and work phenomenally in Colorado’s extreme weather. Max-Seal Pet Doors are available in a variety of finishes and sizes, and our team can help you make the best choices for your home. Max-Seal Dog Doors are also known to have the best insulation and security features available.

Pet Door Sizes
  • Small – 6″w x 7.5″h – Cats & dogs up to 14 lbs.

  • Small/Medium – 7″w x 9″h – Large cats & small dogs up to 15 lbs. (Papillion, Havenese, Bichon, Yorkies, etc.)

  • Medium – 9″w x 12″h – Cavalier King Charles, femal Pugs, Jack Russell Terriers

  • Large – 11″w x 16″h – Cocker Spanials, Shetlands, Shar Pei, Wheaten Terriers, Whippets

  • Tall – 11″w x 20″h – English Springer, Standard Poodles, female Labs, Samoyed, Dalmations

  • XL Grand – 12″w x 24″h – Male Golden Retrievers, Collies, German Shepards, Large Irish Setters

  • Wide Tall – 15″w x 20″h – Large Labs, Large Rottweiler, Ridgebacks

  • Mammoth – 15″w x 24″h – Dobermans, large German Shepards, Landseer, Mastiffs

  • Behemoth – 15.75″w x 32″h – Irish Wolf Hounds, St. Bernards, Great Danes & other giant breeds/large dogs needing additional room due to mobility and arthritic problems

Frame Color Options
  • Tabernacle Grey

  • Grey Aluminum

  • White Aluminum

  • Signal White

  • Pearl White

  • Light Ivory

  • Beige

  • Beige Brown

  • Earth Brown

  • Traffic Black