E-Commerce Image Size Guide 2026: Best Ratios for Product, Banner, Logo, and Social

If your storefront looks inconsistent, media sizing is usually the reason. Use this simple guide to keep product photos, banners, logos, and social previews clean on mobile and desktop.

Upload limits and formats

For ShopZero stores, image uploads support JPEG, PNG, and WebP. Most image upload flows allow up to 15 MB per image. General file uploads/attachments are typically capped at 10 MB. Product “video” is usually provided as a URL, not a direct uploaded video file.

Recommended aspect ratios

Use these defaults to avoid awkward crops:

• Product images: 1:1 (square)
• Homepage/content banners: 2:1
• Logo: wide horizontal, around 3:1 to 4:1
• OG/social image: 1200x630 (~1.91:1)

Why these sizes work

Square product media keeps cards consistent across catalog grids. A 2:1 banner fits hero/content blocks without excessive vertical crop. Wide logos stay readable in nav/footer. The 1200×630 OG format is widely compatible with Facebook, LinkedIn, and messaging previews.

Practical merchant checklist

• Keep the product subject centered with breathing room.
• Use the same background style across a category for a cleaner catalog.
• Export WebP/optimized JPEG when possible to improve load speed.
• Avoid text-heavy images for product cards; use title/price in UI instead.

If your store already has older media with mixed dimensions, update top-selling SKUs first—this gives the biggest visual improvement quickly.