A small to medium-sized home (2,500 square feet or less) takes 2 to 4 days to paint with a team of two or three painters. The size of your house will inevitably contribute to the project's completion time. An average sized home will take an average of three to four days to paint with a team of two or three people. In this case, average means a house with one or two floors and four or fewer bedrooms.
A large house, such as a house with three floors or more than five bedrooms, will take five to six days. It's just a matter of how you feel about sweat, clothes covered in paint and, perhaps, occasional encounters with bees. But you know that painting a room is more complicated than simply buying some paint, throwing it in a frying pan and rolling it across the walls. While a DIY project may seem like a cheaper option at first, it usually ends up being more expensive and takes longer than it would have been to hire an experienced painting contractor.
The typical 12-foot by 12-foot room, if the ceilings measure 8 feet, will have approximately 384 total square feet of wall area that will need painting. As you can see, the decision to paint a room involves quite a bit of work and can interrupt your normal routine for a day or two. It's annoying, but painting has a way of defying the laws of physics and a perverse anthropomorphic ability to ruin sentimental things. If you neglect this step, you will end up in a mess, at best, or you will end up with an ugly and faulty paint, in the worst.
Taking into account each of these factors, painting a house should be able to be completed within 2 to 10 days. Once you've made the cutout, print the rest of the piece you're working on, taking special care to paint downwards or the other way. If you want to be more demanding, you can cut along the edge of the molding as you would in a room to know where to stop applying paint and start being more careful.