I need to fit a cat flap to the rear door out of my garage – this involves cutting a hole about 180 x 170mm. Now the thing is, I don’t know if these doors have hollow and solid bits, bracing etc, inside, or whether they’re just a solid moulding. I suppose I could just stick a fine drill in to find out, but I’d prefer not to…
So I want to cut this hole at the bottom right of the first picture. If I do it all in the recessed part of the door, it would be much neater, but too high for kitty to climb in, even though it probably doesn't look that ways in the pic – so I’m probably going to have to cut it half in the recessed central portion, and half in the thicker bit at the bottom of the door. But I don’t want to destroy the structure of the door if it has got hollow sections, internal bracing etc.
The bottom pic shows the door from the outside. The house is all 1994-vintage uPVC, and this door has those “rhino horn” locks, so it probably is plastic too…?
So I want to cut this hole at the bottom right of the first picture. If I do it all in the recessed part of the door, it would be much neater, but too high for kitty to climb in, even though it probably doesn't look that ways in the pic – so I’m probably going to have to cut it half in the recessed central portion, and half in the thicker bit at the bottom of the door. But I don’t want to destroy the structure of the door if it has got hollow sections, internal bracing etc.
The bottom pic shows the door from the outside. The house is all 1994-vintage uPVC, and this door has those “rhino horn” locks, so it probably is plastic too…?