Cage Trying to maximize space: what can I change?

You could possibly take the loft down and add those grids to the main level and put the wooden house on the main level. Then if you wanted to add a loft above the wooden house you could but you wouldn't need support. I am guessing you need the support grid now because the wooden house is heavy?

Okay, I'm not quite sure I completely understand what you are saying. I believe that you are suggesting that I turn my 2x4 into a 2x5 by taking the grids that I use upstairs around the wooden house and adding them on. Then, if I am correct, you are saying that, if I wanted, I could add a 1x2 loft on top of the wooden house.

Right now, we are doing renovations to the room where Clover usually lives, so she'll have to stay in a 2x4 for now. However, I may be able to make a 2x5 once the room is back up and available. The other issue is that the wooden house has an angled roof which is taller than the height of the grids, so its nearly impossible to add an upper level directly above it. You are correct in saying that I need the support grid because of the weight of the wooden house. I wonder if I can cut and smooth (with piggy appropriate materials) the support grid so that its like an arch rather than a wall. Please clarify if I was wrong in what you were saying.

The house has more than enough room for your baby height wise. What about trimming it down to fit under a second level? Perhaps if you cut the top portion off level then reused the roof flat on the top. As Ly suggested, that would make a very secure second level.

Ah, I'd rather not cut the house if I can avoid it. I'm debating whether or not to cut the support grid so that its an arch--that may open up space for Clover to run through!

Or you could just not have a second level! Or, make a longer ramp and secure the upper level above the house on a 2x5.

You could also bend a grid and use it as a vertical hay holder and a support.

I'm not really sure I understand what you're asking, but you could use a PVC pipe to hold up the second level instead of a whole grid. Then she could still run laps in that area.

Otherwise you could leave the second level as it is and expand the main level. If you can't do a 2x5, maybe a 3x4 or an L shape would work.

I was just looking for suggestions on how I could maximize the running area in my cage. All of these suggestions have been useful! Keep 'em coming!