Sheet and rolls are the two most popular formats for labels. While both can be great for barcode printing, there are several reasons why one option may be better for you than another. Sheets can be more affordable options at lower quantities and when you need to print an exact number of barcodes simultaneously. Thermal roll labels are ideal for on-demand printing. They allow you to print precisely the amount of labels you need. OnlineLabels offers both printable and custom sheet and roll labels.