Can Dogs and Cats Go Through a Magnetic Thermal Door Curtain?

Yes. Most dogs push through a magnetic thermal door curtain on the first day, and cats figure it out on their own. The center seam is held shut by magnets, not a latch, so a nose or a shoulder opens it and it snaps closed behind the animal. One Fillis customer wrote that their 85-pound dog "learned to use it in a day"; another uses it on a back garage door because the dog "got too fat for the dog door." That is the typical experience.

How the seam works for a pet

  • Opens from either side. The two panels overlap and are held by a column of magnets. Pressure anywhere along the seam separates them. Nothing to lift, nothing to unlatch.
  • Closes on its own. The magnets pull the seam shut as soon as the animal is through, so the draft seal is back within a second. This is the same closing mechanism as our summer screen doors, only on an insulated panel.
  • No hard edges. The seam is fabric and magnets. There is no metal flap or spring like a dog door, so nothing pinches a tail.
  • Sized for the door, not the pet. Because the whole doorway opens, a Great Dane and a kitten use the same curtain.

Which pets, which version

Pet What to expect Tip
Medium and large dogs Through in minutes, usually without training Walk through it yourself twice while they watch
Small dogs under about 15 lb May need a day; the panel is heavier than a screen Hold the seam open a few times, then let go a little earlier each time
Cats Nose the seam open, no help needed The clear-window version lets them see through first
Nervous or senior dogs Can hesitate at a solid panel Pick the clear-window curtain so they can see the other side
Puppies that chew Oxford fabric holds up, but no fabric is chew-proof Keep the bottom edge clean of treats and toys

Honest limits

  • It is not a locking pet door. Anything that can push fabric can go through, including a raccoon on the porch. Use it on an interior door or a door inside a screened porch or fenced yard, not as your only barrier to the street.
  • Heavy traffic means more heat loss. Every pass opens the seam for a second. Twenty trips an hour is still far better than a door propped open, but it is not a sealed wall.
  • Clean it by wiping. Muddy paws show on the lower panel. Wipe with a damp cloth. Do not machine wash.

Which curtain to buy for a pet door

For a single door, the clear-window thermal curtain is the one most pet owners pick, because the dog can see out and adapts faster. For a solid entry door with no glass, the solid Oxford version is a bit warmer. Both come in 32 x 80 through 48 x 80 inch sizes; for a double or sliding door use the 72-inch versions.

FAQ

Will the magnets hurt my pet? No. They are sewn inside the fabric seam and are the same strength as on a magnetic screen door.

Does pet hair stick to it? Some, on the lower panel. A lint roller or damp cloth takes it off.

Can I use it on the door to the garage where the dog sleeps? Yes. That is one of the most common uses, and the solid version is the warmer choice there.

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