Product Add-ons

Let shoppers add optional extras — gift wrap, warranties, accessories — straight to their order with selectable add-on product cards.

Premium plan · Updated October 26, 2026

Product Add-ons is a Shopify theme section in the Section Star library. Let shoppers add optional extras — gift wrap, warranties, accessories — straight to their order with selectable add-on product cards.

Live demo

Settings

Every setting below appears in the Shopify theme customizer once the section is published.

Behavior

Setting Type Default
Selectable (checkbox) mode Checkbox On
Go to Cart After Adding Checkbox Off
Selected Highlight Color Color #111

Grid

Setting Type Default
Columns Range 4
Mobile Columns Range 2
Gap Number 16

Card Design

Setting Type Default
Card Background Color or gradient linear-gradient(164deg, #fafafa 0%, #…
Card Padding Number 16
Card Radius Range 14
Card Border Size Number 1
Card Border Color Color #eee
Card Shadow Checkbox Off
Card Text Alignment Text alignment center
Image Aspect Ratio Select (1:1, 4:5, 3:4, 4:3) 1 / 1
Image Fit Select (Cover, Contain) contain
Image Radius Range 8
Title Size Range 15
Title Color Color #111
Price Size Range 15
Price Color Color #111
Compare-at Price Color Color #c0392b

Text

Setting Type Default
Text Alignment Text alignment left
Headline Inline rich text Addons
Text Inline rich text —
Spacing Below Headline Number 18
Sold Out Text Inline rich text Sold out

Add Button

Setting Type Default
Button Text Inline rich text Add selected to cart
Adding Text Inline rich text Adding...
Added Text Inline rich text Added!
Spacing Above Button Number 18
Button Text Size Range 15
Padding Top/Bottom Number 14
Padding Left/Right Number 24
Button Radius Range 6
Button Border Size Number 0
Button Border Color Color #111
Button Background Color or gradient linear-gradient(164deg, #111 0%, #111…
Button Text Color Color #fff

Add-on block settings

Setting Type Default
Product Product —
Custom Title (optional) Text —
Selected by Default Checkbox Off

How to add this section to a Shopify store

  1. Install Section Star from the Shopify App Store.
  2. Open the app and search the library for “Product Add-ons”.
  3. Click Publish, then choose a name and the theme to publish into.
  4. Follow the deep link into the Shopify theme customizer.
  5. Add the section to any page and customize it with the native theme settings.

No code is required, and the section lives in your theme as ordinary Liquid — see the full install guide.