Custom Squarespace design: Beyond the basics

This Squarespace custom design guide shows how I (Typza) create fully personalized websites for clients — going beyond templates to deliver unique branding, custom layouts, and professional functionality. Perfect for business owners and creatives who want their Squarespace site to stand out.

Written by Mikkel Calmann
Nov 7, 2025

Why a custom Squarespace design matters

While Squarespace templates provide a strong starting point, every business has unique goals, branding, and functionality needs. A truly custom Squarespace design ensures that your website:

  • Reflects your brand identity consistently across all pages

  • Guides visitors strategically through your products or services

  • Incorporates tailored functionality without relying solely on standard blocks

  • Maintains mobile responsiveness and performance standards

A professional Squarespace custom design is not about complexity for its own sake — it’s about giving your visitors a seamless, high-quality experience while making your brand stand out.

Squarespace custom design homepage showing professional layout, branded typography, and unique sections

Step 1: Strategic planning for custom layouts

Every Squarespace project starts with planning. Before creating a single section or page, define:

  • User flow: Identify key pages and the journey visitors should take

  • Navigation structure: Decide which pages will appear in menus, submenus, and footers

  • Brand identity elements: Define typography, colors, and imagery style

  • Feature requirements: Determine any custom functionality like booking systems, forms, or integrations

This planning ensures your Squarespace custom design is both visually appealing and purpose-driven, avoiding ad-hoc changes during development.

Step 2: Leveraging fluid engine for full flexibility

Squarespace 7.1’s Fluid Engine allows designers to create custom layouts that would be impossible in older templates. Key capabilities include:

  • Multi-column sections with precise spacing control

  • Stacking, duplicating, and reordering sections seamlessly

  • Dynamic resizing for mobile, tablet, and desktop

  • Nested layouts for complex content arrangements

For a professional custom design, Fluid Engine allows control over every section’s appearance while maintaining responsiveness. This is where templates stop being limiting and your design vision comes to life.

Squarespace Fluid Engine in use for custom design layout with advanced section control and responsive adjustments

Step 3: Integrating custom code for advanced features

A custom Squarespace design often requires additional code for functionality beyond the native editor:

  • Custom CSS: For unique typography, button styles, spacing, or hover effects

  • JavaScript: For interactive elements like sliders, animations, or dynamic content

  • Third-party integrations: Booking tools, payment gateways, or analytics scripts

Proper implementation ensures your website remains stable, fast, and compatible across devices. As a designer, I always document custom code and isolate it to prevent conflicts with updates.

Step 4: Branding and visual consistency

Professional Squarespace custom design is about meticulous attention to branding:

  • Typography hierarchy: Ensures headings, body text, and calls-to-action are consistent and readable

  • Color system: Defined primary, secondary, and accent colors applied consistently

  • Imagery and graphics: High-quality images, iconography, and illustrations that support the brand

  • Whitespace management: Adequate spacing between elements to enhance clarity and perceived quality

Consistency builds trust. Users subconsciously evaluate a site’s credibility within seconds — your Squarespace custom design must look intentional from every angle.

Squarespace custom design example showing consistent branding, typography, and professional layout

Step 5: Testing, optimization, and performance

Even after the visual design is complete, a professional custom Squarespace website requires rigorous testing:

  • Mobile and tablet responsiveness: Fluid Engine makes this easier, but every section still needs validation

  • Page load speed: Large images or scripts can slow a site; I optimize images and minify code where necessary

  • Cross-browser checks: Ensures compatibility with Chrome, Safari, Edge, and Firefox

  • SEO basics: Structured headings, alt text for images, and meta descriptions integrated into each page

This phase ensures that your Squarespace custom design isn’t just beautiful, but fully functional and optimized for real users and search engines.

Step 6: Launching and iterating

Publishing a Squarespace custom design is only the beginning. Professional sites require:

  • Monitoring performance and analytics for user engagement

  • Adjusting sections or layouts based on feedback

  • Adding content strategically to improve SEO and conversions

Squarespace 7.1’s intuitive editor allows business owners to make minor updates themselves without compromising the custom design’s integrity.

Short recap

Creating a Squarespace custom design goes far beyond simply editing templates. It begins with careful planning, defining your brand, user flow, and the structure of your site. Using Fluid Engine, every section and layout can be customized to match your vision while maintaining responsiveness across devices. Advanced features can be added with custom code, ensuring your site is both functional and unique. Consistent branding, typography, and imagery give the website a polished, professional look that builds trust with visitors. Finally, thorough testing, performance optimization, and ongoing refinement ensure that your custom Squarespace site not only looks exceptional but also delivers a seamless, high-performing user experience.

Solutions that drive results

From launch to long-term growth, Typza offers a full suite of Squarespace website design services. Choose the solution that fits your business, and start attracting ideal clients, converting visitors, and elevating your digital presence.

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Mikkel Calmann

I’m Mikkel Calmann, a certified Squarespace designer and Circle Member. We’ve worked with businesses of all sizes, crafting strategic websites that look great and perform even better. If you’d like to discuss a project, feel free to email us at mikkel@typza.com or reach out to us here. You can also book a free 15-minute consultation here.

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Squarespace 7.1 tutorial: Step-by-step guide for business owners