Anyone who has ever undertaken even the smallest of remodel or replacement jobs knows that having accurate measurements is vital to an easy and successful completion. To begin with the replacement of a bathroom vanity, the best place to start is to measure the existing unit. This way the home owner knows just the precise length, width and height that has worked best within the room. If changing to a large unit, be sure the new one fits the wall space and does not cover any electrical outlets or vents. Checking that the area where the drawers and doors open into is also free and clear will keep a good flow in the room. Each of the item listings has detailed dimension information included on the individual page making it very easy to determine if the piece will fit well within the space it is intended for. Measure twice; cut once is an old adage that also applies here. Getting the wrong size on delivery day will set back the remodel process.