Having found a place to buy the wood for the back half of the house, set to work in earnest. Not bad for a days work? It is a biggest doll house project yet by far. 56 in by 56 in. Held together with masking tape and gravity at the present. This put together was to check the fit, new with old. To the first floor ceiling there is 0.5 mm difference. Pretty good cutting on the part of our new wood supplier, I would say.