I am in the process of laying a new maple floor in our conservatory / kitchen. The floor is solid maple 2 1/4 inch by 3/4 inch maple planks. Whilst I think the installation is going OK, the gaps between the planks are sometimes bigger than I'd expected. THe gaps are not massive, the largest probably being about 2mm, I was just expecting the fit to be tighter. Is this to be expected, or am I doing something wrong? I am fitting about 5 rows of wood at a time, glueing and cramping as I go.