Step 1: A Single Boulder Wall

1 ) It started with a bloulder wall (an old door) for my little princess. I took the waste from edging some boards, because the had the angled side from the tree radius, that made them good for gripping.

2) i sanded them to prevent injuries

3 + 4) i mounted them on the door panel

5) i tried it by my self to, to check the stability, then my kid(s) began to climb

Step 2: Make It Bigger

After a few days of fun, it began to became to easy ....

So i made 2 new concepts for more doors. First with the doors side by side. The second one with the doors in a triangle arrangement.

Step 3: The Tower Concept Wins

I tried the tower and it was really stable, so is went on that way.

Step 4: Build the Tower

At first i cut some holes in the tower, for more adventure feeling :D

then i mount some more wooden handels. I mount them on both sides of the door panel, so the kids could climb in the inside and on the outside.

I fixed the triangle really tough with the tension belts, and mounted some furniture castors at one door, so i could move the tower by tilting to the side with the rolls.

Step 5: Climb and Play

Now it was ready for playing.

It was a big fun for the small kids. They could climb different ways and made some contests.

It works for two sommers, then i moved to an new house an build a new wall in their room.

It brought my older one, to a quit good climbing level, far better than her fat daddy ;-)

Warnings:

Check the stability every day, if the belts loosen just a little bit, the tower tilts easier.
Stay with your kids. Help them, cheer them on, give them hints ... prevent them from generating fears when they feel alone.
Bigger Kids are tilting the tower easily, it's for kids up to 6 years.