Back to case studies

Cover Brothers Custom Shopify Product Builder

A guided Shopify configuration interface using Liquid, JavaScript, jQuery, and JSON-backed product relationships to manage complex made-to-order spa-cover options.

View project
Cover Brothers Shopify product builder shown in desktop and mobile views

Cover Brothers sells made-to-order spa and pool-cover products that require customers to work through more than a simple size or color choice. The public storefront includes guided product builders for custom spa covers, swim-spa covers, rolling covers, replacement covers, and solar blankets.

End Everything Studios provided white-label Shopify development support for a custom product-builder experience that uses Shopify Liquid, JavaScript, jQuery, JSON-backed product relationships, and app-managed product option fields to guide configuration while still submitting valid Shopify product-form data.

Technical Highlights

Relational JSON Outside Shopify Variants

The theme exposes make-and-model data through product metafields, including a brands/models JSON payload used by the builder. JavaScript reads that data to populate model choices and connect selected models to measurement and option behavior that would be difficult to model with variants alone.

Liquid-Generated Builder Structure

Product templates render product-specific builder markup, hidden product-form fields, product data, and custom assets. Different product templates load different control scripts for custom spa covers, swim-spa covers, rolling covers, and related option workflows.

JavaScript State and Form Synchronization

The custom scripts track selections, show and hide builder steps, copy values into properties[...] fields, trigger product-option recalculation, and keep the visible interface connected to Shopify cart submission.

Multiple Builder Variants

The live storefront shows related builder patterns across custom spa covers, custom swim-spa covers, swim-spa rolling covers, replacement covers, and solar blanket products. Each page adapts the option set to the product being configured.

Development CTA

Need a custom product experience that Shopify cannot handle out of the box? End Everything Studios builds guided product interfaces, custom storefront logic, and integration layers for products that do not fit neatly into standard Shopify options.

The project required more than a conventional Shopify product page. Made-to-order cover products can depend on thickness, brand and model, manual measurements, shape, fold direction, strap placement, skirt length, color, handles, upgrades, pricing adjustments, and product compatibility.

Those choices are connected. Earlier selections determine which later questions are valid, which fields should be populated, and what information must be submitted to Shopify. The implementation had to preserve Shopify cart behavior while adding relational product logic that standard variants could not represent cleanly on their own.

End Everything Studios supported a guided Shopify builder that combines Liquid-rendered product templates, JSON-backed relationship data, and custom JavaScript. The customer interacts with a staged configuration interface, while the completed selections are mapped into Shopify product-form properties and app-managed option fields.

The live theme includes product-specific templates and scripts for custom spa covers, swim-spa covers, rolling covers, and related option workflows. The builder supports make-and-model lookup, manual measurements, conditional option visibility, total/price display behavior, and responsive product-page interactions.

  • Translating complex product rules into a guided customer interface
  • Building product-specific templates in Shopify Liquid
  • Creating JavaScript logic for multi-step selections and conditional paths
  • Structuring product relationships with JSON-backed data
  • Connecting the custom interface to the underlying Shopify product form
  • Synchronizing selections with a third-party Shopify product-options application
  • Supporting both model lookup and manual measurement workflows
  • Implementing responsive behavior across product pages
  • Maintaining and updating builder logic as products and requirements changed
  • Troubleshooting live product-page behavior and compatibility issues
Guided multi-step Shopify product builder
JSON-backed product relationship system
Make-and-model spa lookup
Manual measurement workflow
Conditional product-option logic
Dynamic question visibility
Liquid-powered product templates
Custom JavaScript state management
Shopify product-form synchronization
Third-party product-options integration
Responsive desktop and mobile experience
Ongoing product-rule maintenance
Created a guided path through complex made-to-order product configuration.
Made interconnected product rules more manageable within Shopify platform constraints.
Supported both database-assisted spa lookup and manual custom measurements.
Connected a custom visual interface with Shopify cart and checkout behavior.
Created reusable builder patterns across multiple product-page types.
Supported ongoing updates as product rules and option requirements evolved.
Delivered responsive builder views across desktop and mobile devices.

Need help untangling a custom WordPress platform?

We modernize legacy systems, repair integrations, and build dependable functionality around the workflows your organization already relies on.