How to Improve the Cart Experience on Your Squarespace Store
The cart experience on your Squarespace store has a direct impact on conversion rate and average order value. Most Squarespace stores ship with the default cart experience — a separate cart page that customers navigate to when they add a product or click the cart icon. It works, but it's not optimized.
Here's how to improve the cart experience on your Squarespace store — both the default cart page and the slide-out drawer — to increase revenue from customers who are already buying.
The Default Squarespace Cart: What's Missing
The standard Squarespace cart page is functional. But "functional" isn't the same as "optimized." Here's what it lacks:
A slide-out drawer: Every time a customer adds something to their cart, they're navigated to a separate page — breaking their browsing flow. A slide-out drawer keeps them on the current page.
Upsell offers: There's nowhere in the default cart to show relevant product suggestions. The cart page is one of the highest-intent moments in the journey — and the default experience doesn't use it.
Free shipping progress: No indicator of how close the customer is to a free shipping threshold. This is a simple AOV lever that's missing from the native experience.
Improvement 1: Add a Slide-Out Cart Drawer
The slide-out cart is the single most impactful cart UX improvement you can make on Squarespace. It replaces the page navigation with a panel that slides in from the right, showing cart contents without taking the customer away from what they were browsing.
UpsellGrow includes a full slide-out cart drawer. It shows all cart items with images, quantities, variants, and prices. Customers can adjust quantities, remove items, and checkout — all from the drawer. The page behind stays visible and accessible.
Improvement 2: Add Upsell Offers Inside the Cart
Both the slide-out drawer and the cart page support offer widgets in UpsellGrow. Three positions are available inside the drawer. Five positions on the cart page. Right of cart (cart page) and above checkout (drawer) are the highest-converting starting positions.
A bundle offer in the cart — showing a discounted package that includes what's already in the cart plus one or two additional items — performs particularly well because the customer can see their current order value and evaluate whether the bundle changes the math.
Improvement 3: Show Cross-Sell Suggestions
A cross-sell offer in the cart shows what complements what's already there. If a customer has a shirt in their cart, suggesting the matching trousers or belt inside the drawer keeps the buying context alive — they're already thinking about the outfit, the meal, the workspace.
Improvement 4: Configure Cart Trigger Behaviour
When multiple products are in the cart, UpsellGrow lets you choose what triggers the offer: the last product added, the highest-value product, or the highest-priority qualifying offer. This ensures the offer is relevant to the most important item in the cart rather than firing randomly.
The Compound Effect
Cart UX improvements compound. A slide-out drawer reduces navigation friction. Upsell offers inside the drawer increase AOV. Relevant cross-sells at the right moment convert customers who were already buying. Each improvement builds on the last, and the combined effect on monthly revenue is measurable within a few weeks of implementation.
Ready to Start Earning More From Every Order?
UpsellGrow adds upsells, cross-sells, bundles, and frequently bought together offers to your Squarespace store — across 5 pages and 19 positions. No coding. Setup takes minutes.