Drilling Internal Doors

Honey bee,
My guess is that your door has a timber frame on the edges only, and it'll have a masonite or ply skins of around 3mm thicknes and the rest will be a honey-comb of paper. I don't htink you'll find any internal frames.

You might get away with toggles depending on how much weight needs supporting but I reckon I'd be mounting a timber base plate the width of the door so you can screw into the timber frame, then mount your rail onto that

Ian

Sorry but what's a toggle?

Honey Bee,
They come in a variety of forms, some squash and expand, some flip open, and some have barbs but essentially they are designed for attaching to thin panels where you can't get enough material for a thread to grip and where you can't get to the other side to fit a nut and washer
They also provide an increased surface area to lessen the possibility of the thing pulling out - take a look here - http://www.ameribestfasteners.com/toggle_bolts.htm

Ian

Thanks Ian.
Has given us some food for thought.

Hollow cavity fasteners like the ones shown here are good for use on hollow core doors.

Have done the same on our bathroom door & it's holding up well.

Thanks Scooter,
Can those fasteners be used through the holes on the mounts?

Great! Thanks for that folks.
Will let you know how i get on!

Job done!
Thanks for the help folks!