I want to hinge an Aluminium ladder at the top so I can swing it up into
the loft.-a This won't be load bearing other than the <10kg weight of the ladder.
The most convenient way would be to drill a hole through near the top of
the stiles and use a bolt either side about which the ladder can rotate,
but that's a bit crude.-a While this won't see very much use, it seems
that a threaded steel bolt on Aluminium section would be prone to wear
and distortion.
Would Nylon bushings/shoulder washers be ok?-a Or bronze?-a Or is there something made for the job?
Simon Simple wrote:
I want to hinge an Aluminium ladder at the top so I can swing it upUse bolts (8 or 10mm, perhaps) with a plain shank and arrange washer
into the loft.-a This won't be load bearing other than the <10kg weight
of the ladder.
The most convenient way would be to drill a hole through near the top
of the stiles and use a bolt either side about which the ladder can
rotate, but that's a bit crude.-a While this won't see very much use,
it seems that a threaded steel bolt on Aluminium section would be
prone to wear and distortion.
Would Nylon bushings/shoulder washers be ok?-a Or bronze?-a Or is there
something made for the job?
shims to make sure the ladder operates on the plain portion, rather than
the threaded bit. This will last several lifetimes of loft access
provided that it doesn't frequently get wet.
On 20/02/2026 11:26, No mail wrote:
Simon Simple wrote:
I want to hinge an Aluminium ladder at the top so I can swing it upUse bolts (8 or 10mm, perhaps) with a plain shank and arrange washer
into the loft.-a This won't be load bearing other than the <10kg
weight of the ladder.
The most convenient way would be to drill a hole through near the top
of the stiles and use a bolt either side about which the ladder can
rotate, but that's a bit crude.-a While this won't see very much use,
it seems that a threaded steel bolt on Aluminium section would be
prone to wear and distortion.
Would Nylon bushings/shoulder washers be ok?-a Or bronze?-a Or is there >>> something made for the job?
shims to make sure the ladder operates on the plain portion, rather
than the threaded bit. This will last several lifetimes of loft access
provided that it doesn't frequently get wet.
Why not buy a custom made loft ladder? https://www.screwfix.com/p/essentials-3-12m-loft-ladder/7431P
I want to hinge an Aluminium ladder at the top so I can swing it up into
the loft.-a This won't be load bearing other than the <10kg weight of the ladder.
The most convenient way would be to drill a hole through near the top of
the stiles and use a bolt either side about which the ladder can rotate,
but that's a bit crude.-a While this won't see very much use, it seems
that a threaded steel bolt on Aluminium section would be prone to wear
and distortion.
Would Nylon bushings/shoulder washers be ok?-a Or bronze?-a Or is there something made for the job?
On 20/02/2026 11:28, The Natural Philosopher wrote:
On 20/02/2026 11:26, No mail wrote:
Simon Simple wrote:
I want to hinge an Aluminium ladder at the top so I can swing it upUse bolts (8 or 10mm, perhaps) with a plain shank and arrange washer
into the loft.-a This won't be load bearing other than the <10kg
weight of the ladder.
The most convenient way would be to drill a hole through near the
top of the stiles and use a bolt either side about which the ladder
can rotate, but that's a bit crude.-a While this won't see very much
use, it seems that a threaded steel bolt on Aluminium section would
be prone to wear and distortion.
Would Nylon bushings/shoulder washers be ok?-a Or bronze?-a Or is
there something made for the job?
shims to make sure the ladder operates on the plain portion, rather
than the threaded bit. This will last several lifetimes of loft
access provided that it doesn't frequently get wet.
Why not buy a custom made loft ladder?
https://www.screwfix.com/p/essentials-3-12m-loft-ladder/7431P
I need a 3.5m ladder.-a The loft is boarded and re-joisted which adds 'thickness' to the floor/ceiling, and the ladder has to land on a
landing two steps down from the floor; there is nowhere else it can
land.-a There's no realistic possibility of moving or enlarging the
hatch.-a Few of the many off-the-shelf loft ladders fit all the
requirements and those that might are very pricey.
I have a single section 3.5m Aluminium ladder.-a This is my plan, not to scale...
|X|-a-a-a-a-a-a Loft
|X|-a-a-a-a-a-a-a-a-a -a-a .____________.___
|X|###-a -a-a /########################
|X|-a-a-a-a -a-a-a -a-a /
|X|-a-a-a-a-a -a-a /
|X|-a-a -a-a-a-a /
|X|-a-a-a -a-a /
|X|-a-a-a-a /
|X|-a-a-a /
|X| is the outside wall
### is the loft floor/ceiling below
-a/ is the deployed ladder
-a. are hinges, one at the ladder top.-a This is where the bushings might be.
__ is probably 12mm ply, a bit wider than the ladder and 1.8m between hinges.-a The shorter length is fixed to the floor.
So the ladder top describes an arc.-a When stowed with the bottom of the ladder on the wall side of the hatch, the ply board is just over
vertical.-a The trig all works out well.-a Having the ladder stowed at an angle means I don't need so much floor space, and when it's deployed you need a 'corridor' anyway.
On 20/02/2026 12:02, Simon Simple wrote:
On 20/02/2026 11:28, The Natural Philosopher wrote:Ah. OK
On 20/02/2026 11:26, No mail wrote:
Simon Simple wrote:
I want to hinge an Aluminium ladder at the top so I can swing it up >>>>> into the loft.-a This won't be load bearing other than the <10kgUse bolts (8 or 10mm, perhaps) with a plain shank and arrange washer
weight of the ladder.
The most convenient way would be to drill a hole through near the
top of the stiles and use a bolt either side about which the ladder >>>>> can rotate, but that's a bit crude.-a While this won't see very much >>>>> use, it seems that a threaded steel bolt on Aluminium section would >>>>> be prone to wear and distortion.
Would Nylon bushings/shoulder washers be ok?-a Or bronze?-a Or is
there something made for the job?
shims to make sure the ladder operates on the plain portion, rather
than the threaded bit. This will last several lifetimes of loft
access provided that it doesn't frequently get wet.
Why not buy a custom made loft ladder?
https://www.screwfix.com/p/essentials-3-12m-loft-ladder/7431P
I need a 3.5m ladder.-a The loft is boarded and re-joisted which adds
'thickness' to the floor/ceiling, and the ladder has to land on a
landing two steps down from the floor; there is nowhere else it can
land.-a There's no realistic possibility of moving or enlarging the
hatch.-a Few of the many off-the-shelf loft ladders fit all the
requirements and those that might are very pricey.
I have a single section 3.5m Aluminium ladder.-a This is my plan, not
to scale...
|X| is the outside wall
### is the loft floor/ceiling below
-a-a/ is the deployed ladder
-a-a. are hinges, one at the ladder top.-a This is where the bushings
might be.
__ is probably 12mm ply, a bit wider than the ladder and 1.8m between
hinges.-a The shorter length is fixed to the floor.
So the ladder top describes an arc.-a When stowed with the bottom of
the ladder on the wall side of the hatch, the ply board is just over
vertical.-a The trig all works out well.-a Having the ladder stowed at
an angle means I don't need so much floor space, and when it's
deployed you need a 'corridor' anyway.
I still didn't really follow that-a - you need to slide as well as hinge surely? ... BUT can you 3D print some plastic bushings? plenty so if
they wear our...
Or...buy some nice pro ones made of zinc plated-a steel.
https://www.technobotsonline.com/makertronics-10mm-shaft-mounting-hub.html
And buy bolts with plain shanks instead of screws.
Would Nylon bushings/shoulder washers be ok?-a Or bronze?-a Or is there something made for the job?
On 20/02/2026 12:28, The Natural Philosopher wrote:
On 20/02/2026 12:02, Simon Simple wrote:
On 20/02/2026 11:28, The Natural Philosopher wrote:Ah. OK
On 20/02/2026 11:26, No mail wrote:
Simon Simple wrote:
I want to hinge an Aluminium ladder at the top so I can swing itUse bolts (8 or 10mm, perhaps) with a plain shank and arrange
up into the loft.-a This won't be load bearing other than the <10kg >>>>>> weight of the ladder.
The most convenient way would be to drill a hole through near the >>>>>> top of the stiles and use a bolt either side about which the
ladder can rotate, but that's a bit crude.-a While this won't see >>>>>> very much use, it seems that a threaded steel bolt on Aluminium
section would be prone to wear and distortion.
Would Nylon bushings/shoulder washers be ok?-a Or bronze?-a Or is >>>>>> there something made for the job?
washer shims to make sure the ladder operates on the plain portion, >>>>> rather than the threaded bit. This will last several lifetimes of
loft access provided that it doesn't frequently get wet.
Why not buy a custom made loft ladder?
https://www.screwfix.com/p/essentials-3-12m-loft-ladder/7431P
I need a 3.5m ladder.-a The loft is boarded and re-joisted which adds
'thickness' to the floor/ceiling, and the ladder has to land on a
landing two steps down from the floor; there is nowhere else it can
land.-a There's no realistic possibility of moving or enlarging the
hatch.-a Few of the many off-the-shelf loft ladders fit all the
requirements and those that might are very pricey.
I have a single section 3.5m Aluminium ladder.-a This is my plan, not
to scale...
|X|-a-a-a-a-a-a Loft
|X|-a-a-a-a-a-a-a-a -a-a .____________.___
|X|#####-a-a -a-a /########################
|X|-a-a-a-a -a-a-a-a /
|X|-a-a-a-a-a -a-a /
|X|-a-a -a-a-a-a /
|X|-a-a-a -a-a /
|X|-a-a-a-a-a /
|X|-a-a-a-a /
|X| is the outside wall
### is the loft floor/ceiling below
-a-a/ is the deployed ladder
-a-a. are hinges, one at the ladder top.-a This is where the bushings
might be.
__ is probably 12mm ply, a bit wider than the ladder and 1.8m between
hinges.-a The shorter length is fixed to the floor.
So the ladder top describes an arc.-a When stowed with the bottom of
the ladder on the wall side of the hatch, the ply board is just over
vertical.-a The trig all works out well.-a Having the ladder stowed at
an angle means I don't need so much floor space, and when it's
deployed you need a 'corridor' anyway.
I still didn't really follow that-a - you need to slide as well as
hinge surely? ... BUT can you 3D print some plastic bushings? plenty
so if they wear our...
From deployed, you lift the ladder up.-a The top describes an arc with a radius of 1.8m as defined by the plywood which hinges up from the floor
1.8m from the hatch.-a The ladder bottom doesn't hit the wall if you
don't let it - you'd keep the ladder in more-or-less contact with
non-wall (right) side of the hatch, works out there's plenty of room. If
you stow it with the bottom against the wall side (left) of the hatch,
the top end is a little under 1.8m above the floor and the plywood is
just past vertical.
I know, but the diagrams and trig do work out.
Or...buy some nice pro ones made of zinc plated-a steel.
https://www.technobotsonline.com/makertronics-10mm-shaft-mounting-hub.html
That's a good idea.-a I was thinking of something like externally
threaded tube with nuts, but that sort of hub would probably be better
with self-tappers into the Aluminium.
--
And buy bolts with plain shanks instead of screws.
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