Size Charts: What to Publish, and What Not to Copy

The most common size chart in a team store is one chart, posted once, covering everything. It is convenient, it looks organized, and it is the direct cause of a meaningful share of wrong-size orders — because a size chart describes one item, not a category.

The short answer: publish the chart the provider supplies for each exact item, keep it with that item, and never adapt one chart to cover several. If a chart is not available for an item, say that rather than substituting one.

A chart belongs to an item, not to a store

Two garments can both be labelled L and measure differently. They can come from different manufacturers, be cut differently, or be built from materials that behave differently. Fit terms are descriptive rather than standardized, so "regular fit" and "classic fit" carry no fixed numbers.

This is why a single store-wide chart misleads. It implies the numbers apply everywhere, and the buyer has no way to know which items it was actually taken from.

The rule that avoids nearly all of this: one chart, one item, taken from the approved source for that item. Where two items genuinely share a chart because the provider says so, that is fine — but it is their statement, not your inference from the products looking similar.

Do not build your own

It is tempting to measure a sample and publish the results, particularly when a chart is not readily available. It creates two problems.

One garment is not the specification. Manufacturing tolerances mean individual items vary. A measurement taken from one sample is one data point presented as a standard.

It becomes yours. A chart you published is a chart you are answerable for, and the buyer reasonably relies on it. Numbers taken from an approved source stay the provider's statement about their product.

If no chart exists for an item, say so in the listing and describe what is known, rather than generating numbers to fill the space. Under-informing is recoverable; misinforming is not.

Say what the numbers measure

Charts differ in what they describe, and the difference is not always labelled.

• Body measurements describe the person the garment is meant to fit.
• Garment measurements describe the item laid flat.

These produce different numbers for the same size, and a buyer comparing one against the other will choose wrongly. Whichever the source provides, present it with the label the source uses and do not convert between them.

Keep units as they are given. A converted number is a number you produced.

Put it where the decision happens

A chart on a separate page is easy to miss. Whatever platform allows, the size information belongs on the item, next to the size picker, at the moment somebody is choosing.

Two supporting habits:

• Reference it in the listing text as well, in the same consistent place across the store, alongside the naming and description pattern the rest of the assortment follows.
• Mention it in the announcement, so people know size information exists before they start. Most wrong sizes are chosen quickly by someone who did not know there was anything to read.

What a chart cannot settle

Even a correct, item-specific chart leaves real questions open, and pretending otherwise sets up disappointment.

It does not say how the garment will feel, how someone prefers to wear it, or how two people of similar measurements will each judge the same fit. It is one input.

Where the organization's practice about wrong sizes matters — and it does, since what is possible depends on how the items are produced — that practice belongs in the order-window announcement rather than beside the chart. The broader framing is in sizing across a community.

Frequently asked questions

Can we use one size chart for the whole store? No. A chart describes a specific item. Two garments labelled the same size can measure differently, so a store-wide chart implies numbers that do not apply to every item under it.

What if the provider has no chart for an item? Say so in the listing and describe what is known from the approved source. Substituting another item's chart or publishing your own measurements creates a number the buyer will rely on.

Should we measure a sample ourselves? Better not to. One garment is a single data point subject to manufacturing variation, and a chart you publish becomes your statement rather than the provider's.

What is the difference between body and garment measurements? Body measurements describe the wearer; garment measurements describe the item laid flat. They give different numbers for the same size, so present whichever the source supplies with its own label and do not convert.

Where should the chart appear? On the item, next to the size picker, wherever the platform allows. A chart on a separate page is easy to miss.