Shopify how-to June 15, 2026 5 min read
How to Add Schema Markup for Size Charts on Shopify
SizeSpecification + Product schema. Position for future Google rich results.
Schema Example
{
"@context": "https://schema.org",
"@type": "Product",
"name": "Crewneck T-Shirt",
"hasVariant": [{
"@type": "ProductGroup",
"size": {
"@type": "SizeSpecification",
"name": "M",
"sizeGroup": "Regular",
"sizeSystem": "US",
"suggestedMeasurement": [
{"@type":"PropertyValue","name":"chest","value":"40","unitCode":"INH"},
{"@type":"PropertyValue","name":"waist","value":"32","unitCode":"INH"}
]
}
}]
}Where to Add It
Inject into product page Liquid template, inside a script tag with type="application/ld+json". Or use Tailor Size Guide which auto-generates schema for every chart.
FAQs
What schema for size charts?
SizeSpecification + Product.
Does Google use it?
Standard supported; rich results not yet shown but positioned for future.
Auto-generate schema
Tailor Size Guide outputs SizeSpecification JSON-LD on every chart automatically.