Well, I went for it. You see, my reasoning was that the height of the ladder would complement the large wall and fill it up without adding any more artwork on the walls.
-three 0.75 inch x 2.5 inch x 7 foot pine wood pieces, nails and white paint
As you would expect, two 7 ft pieces make the outside pieces, and the last piece we cut down into five 16 inch rungs. We nailed the rungs at equal spacing (I must have measured it twenty times!), and at a slight angle so that they would be level when the ladder leans against the wall. Last on the list was some white paint (two coats).
So far my son has not found it too interesting, but I'll let you know when he starts climbing on it.
Have a great day everyone!