Building walls inside a your home, whether upstairs or downstairs, is not a tough process, nevertheless it does take some time and patience to make it look right. Next you are doing home remodeling, make sure you do it right. You would like your walls to look as though they were built by a professional. Whether your wall is big or small, it will likely take you more than one day to finish if you intend to use drywall. You will need to speckle the wall two times and let the Spackle dry between applications.