On 17/01/2013 15:20, Jonathan wrote:
I want to try to make some flood gates for our doors and they are very
expensive to buy. I want to use some sort of fixing that I can screw
into the wooden door frames permanently. These would have a thread in
the centre that I could use to bolt through, I imagine, external
plywood to create a tight fit as needed.

I have never seen anything like that, apart from rawlbolts which are
not designed for wood so far as I know. Does anyone know of such a
thing, or have a better suggestion? Many thanks.

I used aluminium square U channel, bolted to the side walls either side
of the doorway, with a hole from front to rear, near the top. Matching
holes in the flood board allowed me quickly to drop the board (cut from
an old scaffolding board) into the channels and hold it in place with
metal pegs. I used rubber seals along the bottom and sides of the board
to make it reasonably water tight. That produced a quick to deploy first
line of defence, which could be backed up with sand bags behind the
board as time permitted.

As floods can happen at night, when most of us are asleep, I also fitted
a float switch outside, linked to an under dome bell, in order to give
enough warning to get up and put the boards in place.

Colin Bignell