A regular job I did out of Glenrothes was dropping an empty Stand Trailer and taking a loaded one back to France.
The loaded trailer was full to within an inch of its life but the curtains were not zipped up and we had to strap it up before shunting them round.
A set of these steps was necessary to feed the straps over the jigsaw of wooden cases. I used a roof pole to poke the straps through the small space below the roof fabric. At the other end we dropped it off, took the straps off and left the curtains unfastened,