DIY scaling ladders

These outlaws have indeed a daring captain; but without machines, scaling ladders, and experienced leaders, my castle may defy them.
-Ivanhoe

Hello, in the hope that we will some day get to fight a siege - the holy grail of all gamers - I had been pondering how to make cheap scaling ladders (me being too scroungy with my money to actually buy some..).
And a possible solution struck me while we were moving stuff around the other day as I found some leftover material that I had refused to throw out in the hopes of being able to use it one day. The material is used for strenghthening walls before finishing them with glasfelt (which is a direct translation from the Danish word as I was unable to find an equivalent) and is available in all (Danish) toolshops and DIY for next to nothing.

When cut to the right size and after a quick brown paintjob they do look like scaling ladders and one can do a dozen in as many minutes.

(A pair of scaling ladders carried by some German infantry,
anxious to get over the walls of a Roman fort)

Anyways, they'll suit our purposes nicely and now there's one thing less on the list of to-dos before a siege is possible.

Unfortunately they don't resemble this example of a "high"-tech medieval Chinese example of a scaling ladder:

Very nice!
Anyways, have fun and let me know if you could use the tip for anything.