It depends on a lot of things. How big the project is, what you plan to do, and what materials you will be using.
It is extremely important to know that most materials take time to dry and to cure. You should prepare yourself for that by budgeting the time wisely, and never to rush into the next step before the previous step has not completely cured. For instance, if you plastered a wall, do not expect to paint it the next week. The plaster might look dry, but in reality it is still busy curing. If you paint over it too soon, the curing cement – which releases gasses and is still busy getting harder – might cause the paint to start blistering or might dramatically decrease the lifespan of the
This is one of the prime examples of cutting corners (the other being low quality products, low quality labour and low quality information). Time costs money, but it costs more to rectify mistakes.
