How to use "shorter" in a sentence

If I climb onto it, the drop from there will be shorter

Then, over the same area, I use the shorter, sharper knife

I make the rope even shorter, but when I step on it, nothing happens

Then I pick up the multi-tool, open the shorter knife and push it hard into my arm

In the middle of the west wall - one of the two shorter walls - opposite the entrance to the room, was a six-foot-long, three-foot-high window that provided a view of another space, which was only half as large as this outer chamber