Don't know if anyone has mentioned this yet (sorry, I'm too lazy right
now to got through this whole thread), but there is a decent site
detailing making such a door. Here's a link:
Hope that gives you some ideas,
I hate to dampen your enthusasm.. but this seems a bit dangerous to do
with standard 2X4s.. they will warp over time.. If they bow, there's
potential that the width of the door gets smaller, and perhaps that's
enough cause the door to fall or get stuck..
How are you going to install this? I forget the terminology, but are
you going to use one big coil spring or are you going to use two side
springs? Either way has safety issues, so please read up and/or get
Very doubtful that it would fall from shrinkage. Wood just doesn't shrink
that much, especially along its length. The rollers have enough slop along
the axile to accommodate any movement in this direction.
The single coil over the door opening doesn't really have any safety issues
beyond some common sense when winding them up or loosening them. The
springs that run back along each side are a pain and they are more prone to
breaking over time, but a decent safety cable strung up through them negates
any real safety issues.
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