Lockable Pets Door Security Flap with Durable High Quality Durable Pet Accessory for Everyday Use

Frequently Asked Questions

• What are the actual cutout dimensions for each size (S, M, L) — what is the maximum pet width that can pass through?

  S size pet flaps typically have an opening of about 15x19cm; M approximately 20x23cm; L approximately 25x30cm. Measure your pet's shoulder width and height while standing — the flap opening must exceed both measurements by at least 2–3cm for comfortable passage.

• The 4-way lock — what are the four settings and can it be locked closed from outside?

  Standard 4-way pet door locks include: open both ways, in-only, out-only, and fully locked. The fully locked setting secures the flap from both sides. However, the lock mechanism is typically a slide tab on the flap frame — it does not lock with a key, just a manual slide.

• Will a drafty cold wind pass through this plastic flap in winter?

  Single-flap plastic doors allow noticeable draft in cold climates. The flap creates a seal only when fully closed and your pet is not pushing through. In temperatures below 0°C, single plastic flaps are inadequate for insulation — look for double-flap or magnetic-seal designs for draft resistance.

• Can this be installed in a glass door or only wooden/hollow-core doors?

  This type of pet door requires cutting a rectangular hole in the door and securing with screws — not suitable for glass doors. Glass door installation requires a custom glazed insert from a glazier. This product fits wood, MDF, or composite door panels only.

• The description says 'noiseless' — does the flap make a loud banging sound when the pet pushes through?

  The 'noiseless' claim refers to the flap not rattling in light wind compared to unframed flaps. When a large dog pushes through at speed, the flap will still produce a brief impact noise against the frame. It is significantly quieter than metal-framed flaps but not completely silent.

• Is this suitable for cats only or can small dogs use it comfortably?

  The listing notes 'applicable for small dogs' — the S and M sizes are usable for cats and small dogs under roughly 15 lbs. A Beagle or Cocker Spaniel will likely need the L size. Measure your dog's shoulder-to-ground height before ordering as the key fitting dimension.