CEESC Large Dog Flap, White, for Pets up to 45 kg

The CEESC Large Dog Flap sits at number six in this guide, and at £59.99 it is the cheapest door here that puts a 45 kg figure in its own title. It is a plastic-framed flap with a magnetic strip along the bottom of the flap, a snap-in closing panel for keeping strays and unwanted animals out, and a telescoping tunnel that adjusts to the thickness of the door it is fitted to. It carries a 4.3 out of 5 rating from 469 ratings.

On the point this guide keeps coming back to, the CEESC is the counter-example. Its title says pets up to 45 kg, and its specification field for weight capacity says 100 pounds, which is about 45 kg — the two numbers agree. Compare that with the most expensive door here at £108.99, titled Large but capped at 40 lb (about 18 kg) in its own bullet: roughly two and a half times the stated pet weight for £49 less. Where this listing does contradict itself is thickness. One bullet says the telescoping tunnel fits doors from 1 1/4 in to 2 1/16 in; the specification fields give the minimum compatible thickness as 3.8 cm, which is 1.5 in — about a quarter of an inch wider than the bullet's figure. Everything on this page is taken from the Amazon listing, not from any test we have run.