A Shopify Website with a Custom Tile Calculator for Boosting Order Accuracy

The Requirements

A Scalable eCommerce Store for Global Operations

Given the global target market and multiple segments, they sought a robust eCommerce store capable of supporting a growing product database, high-volume transactions, multi-currency pricing, and localized shopping experiences. They also needed:

A modernized storefront with intuitive UI/UX
A custom tile calculator to estimate the number of tiles required (based on the area to be tiled)
Integrations with widely available payment gateways like PayPal, Karna, etc., with multi-currency support and varying tax/shipping compliance requirements
Unified packaging, availability, and price updates across several product variants

Project Challenges

Developing a Custom JavaScript-Based Tile Calculator, Payment Integrations, & a Sturdy Back-End

While building the foundational eCommerce website was not very complicated, our web developers had to navigate specific challenges in meeting some of the requirements:

The most complex was to create a custom JavaScript-based tile calculator that could handle diverse user inputs, unit conversions, rounding rules, and packaging constraints. The calculator also needed to account for wastage, multiple areas, and exclusions (such as doors and windows) to ensure maximum accuracy and minimize costly errors in orders.
Beyond the calculator, the project also required a secure, PCI-DSS compliant payment gateway integration in accordance with global standards.
We also had to establish robust back-end connections to manage a growing product database with thousands of SKUs and unify all updates across the system.

Our Solution

A Shopify eCommerce Website with JS-Based Calculator

We proposed Shopify as the foundation for their eCommerce framework, capable of supporting thousands of SKUs, secure payment transactions, and international growth. To address the most critical requirement, our developers integrated a custom JavaScript-based tile calculator seamlessly into product pages. Alongside, we ensured secure payment handling by integrating PayPal, Karna, and other global + localized gateways and designed a user-friendly front-end.

Solution Workflow

Discovery & Planning

Gathered product-level data: tile sizes, coverage per box, and category structures (floor, wall, outdoor, bathroom).
Identified calculator requirements, including support for multiple measurement units, wastage allowances, and box rounding rules.
Defined Shopify metafields to store critical attributes like tile dimensions, tiles per box, and price/m².

Platform Setup

Configured Shopify storefront with collections for tiles, flooring, and bathroom products.
Structured navigation for quick browsing by category, size, and use case (e.g., indoor vs. outdoor).
Set up Shopify’s product variant system to handle tiles sold in different sizes and packaging formats.

Custom Tile Calculator Development

Accept inputs in cm or m and convert them accurately.
Calculate area (width × height) and align results to tiles-per-box packaging.
Apply an optional wastage buffer (5–10%) for cutting and breakage.
Allow adding/deducting multiple areas, such as different walls or window exclusions.

We also optimized logic to round results to full boxes, avoiding mismatches at checkout.

Integration with Product Data & Inventory

Our experts linked calculator outputs with Shopify metafields, allowing calculations to pull real-time data (tile size, coverage, and price).
Ensured results stayed consistent with inventory availability and packaging rules.
Automated syncing so updates in product data are reflected instantly in the calculator.

Payment Integration

Integrated PCI-DSS–compliant payment gateways to handle global transactions and express checkout options via shop and GPay.
Configured multi-currency support, discount coupons, and tax rules for cross-border buyers.
Tested edge cases such as minimum order quantities and palletized shipments for bulk buyers.

Front-End Design & UX

Designed a mobile-first interface where the calculator sits directly on product pages.
Used intuitive placeholders (e.g., “Enter width in meters”) and real-time feedback (area, tiles, boxes, wastage) to build buyer confidence.
Added error validation to prevent unrealistic inputs (e.g., negative values, oversized areas).

QA, Testing, & Validatio

Ran QA across browsers and devices to ensure smooth performance and calculator accuracy.
Conducted scenario testing for homeowners (small bathrooms, limited area) and contractors (multi-room/commercial projects, large carpet area).
Verified compliance with accessibility standards for screen readers and keyboard navigation.

Launch & Post-Go-Live Support

Deployed the Shopify site with the tile calculator fully embedded in product detail pages.
Supported promotional campaigns at launch and provided ongoing maintenance.
Configured the calculator logic to be modular so future layouts (e.g., herringbone, diagonal) could be added without rework.

Technology Stack

AAA Image + Video Gallery

Klarna On-Site Messaging

Power Map Store Locator

Judgeme Reviews

Wishlist Plus

Orbe Geolocation

Hulk Form Builder

Frequently Brought

Bold Upsell

Globo Product Option

Essential Upsell

Google & YouTube

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A Shopify Website with Custom JS-Based Tile Calculator

A Leading Tile and Flooring Retailer