In alt.home.repair, on Tue, 09 Jul 2019 23:32:20 -0400, micky
wrote:


A broom stick

A traditional wooden broom stick, not a metal broom stick.

is about the right size, but look to see how much higher
the top of the broom stick is than the top of the door was. (or how far
it is from the top of the broom stick to the top of the channel) You
don't have to cram it in, but it needs to be tall enough that one can no
longer lift the door enough to take the door out.