On Sun, 01 May 2016 10:17:42 -0500, dpb wrote:

On 05/01/2016 8:27 AM, wrote:
We are looking to replace single steel door with sectional door. The
side springs look different from all others I have seen with a long
bolt in the end of the spring. How are these removed? ...

Carefully, perhaps?

Prop up the door to remove w/o tension; unless you've got adequate help
use a mechanical aid such as a comealong or winch to then lower the door.

Clamp a vice grips on the track when the door is up, so it cant go down.
I usually prop a 2x4 under it too. Remove spring(s). Normally, this is
when you install some new springs. But of you are removing the door,
lower it by lowering the vice grips on alternate sides. In other words,
put vice grips 8 or 10" lower on the other side of the door, remove th
first vice grips and let the door down to that other vice grips. Keep
doing that until it's all the way down. A comealong or winch will surely
help too.

Or use the farmer method. Stack hay bales under the door, and remove
them one row at a time as you lower the door. Yes, I did that once and
it also worked well.