Thread: It's hard to build a house!

My friend can do almost everything she imagine in her lucid dreams except building a house.
Actually, she can summon a house in a flash and that is pretty good. The problem is maintaining its structure.
When she looks at her house outside that, its structure is perfect and stable.
But everytime she walks inside, the house is smaller than it really was!

I think if she build a house step by step, not only with her imagination,
the problem will not occur again though it takes really long time.
How do you think? Please give me some idea!
And please understand my poor English grammer!