Vinyl sheets are manufactured in 6’ and 12’ widths. Depending on the configuration of your room, seaming may be necessary. Make sure your retailer can explain to you where the seams are likely to be when your new floor is laid down. Certain floor patterns hide seams better. For example, tile patterns with grout lines mask seams beautifully.
In rooms with heavy water use, such as bathrooms and laundry rooms, you may need to occasionally replace the heavy caulking where the flooring meets the walls or bathtub. You don’t want water seeping under your flooring.