
Tape width decides how big your text can be and how many lines fit on a label. Narrow tape suits small items and single lines; wide tape suits boxes, shelves, and two or three lines. Your machine only takes the widths its maker lists, so check that first.

Width Basics
Widths are usually given in millimetres or fractions of an inch. The exact sizes offered vary by maker, so use these groups as a rough guide rather than a fixed rule.
- Narrow: a single short line, about the height of a pen barrel.
- Medium: one large line or two small lines.
- Wide: two to three lines, or big text to read from a distance.
Matching Width to the Item
| Item | Suitable width group | Reason |
|---|---|---|
| Cable ends and cords | Narrow | Wraps neatly without overlapping |
| Spice jars, small tins | Narrow to medium | Limited surface area |
| Folders and binder spines | Medium | Readable on a shelf |
| Storage boxes and bins | Wide | Visible from a distance |
| Shelf edges | Medium to wide | Room for a category and a detail |
How to Find the Right Width
- Measure the flat area of the item where the label will sit.
- Leave a small margin on every side so the edges do not curl.
- Decide how many lines you need.
- Choose the widest tape that still leaves that margin.
- Print a test label on a scrap strip and hold it against the item.
Things to Watch
- A tape that is nearly as wide as the surface may overhang and peel.
- Text height depends on the machine and the tape; the maker’s guide lists the options.
- A cartridge made for one machine family may not fit another, so check compatibility before you buy refills.
Reading Tape Details on the Box
Cartridge packaging normally shows the width as a clear number, along with the tape type and colour. Compare this against the list in your machine’s guide before buying. If the number is missing, look at the side of the cartridge or the product sheet. A mismatch is the most common reason a new cartridge will not fit or will not print.
Keep a small note in your drawer with the widths you use most, such as one for cables, one for shelves, and one for boxes. When a cartridge runs out, you can reorder the correct size without guessing. Sharing the note with others who use the machine prevents mix-ups.
FAQ
Can I use any width in any machine?
No. Each machine accepts a set range. The maker’s guide shows the cartridge types it takes.
Is wider tape easier to read?
Usually, because the text can be taller. Contrast and font choice matter too, so a dark print on a light tape helps.
The Short Version
Choose the narrowest tape for tiny or curved items, the widest for boxes and shelves, and medium for most everyday jobs. Measure the surface, leave a margin, and confirm your machine accepts the width.