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What is WordPress Understrap?

Published in WordPress Development Tools 4 mins read

WordPress Understrap is a highly regarded, open-source WordPress starter theme that expertly combines the robust foundational structure of Underscores with the powerful front-end framework of Bootstrap. It serves as an essential toolkit for developers aiming to build custom, modern, and responsive WordPress themes with efficiency and flexibility. Trusted by over 100,000 developers, Understrap provides a solid and popular starting point for a wide range of web projects.

The Core Components: Underscores and Bootstrap

Understrap's strength lies in its intelligent integration of two industry-standard tools:

1. Underscores (_s)

Underscores, often referred to as _s, is an official starter theme developed by Automattic (the creators of WordPress.com). Its primary purpose is to provide a clean, minimalist, and well-structured foundation for a custom WordPress theme.

  • Key Characteristics of Underscores:
    • Barebones Structure: It comes with just enough code to get started, ensuring there's no bloat.
    • WordPress Best Practices: Adheres strictly to WordPress coding standards and theme development guidelines.
    • Minimalist Design: No pre-styled elements, allowing developers complete creative freedom.
    • Developer-Friendly: Designed to be easily extended and customized.

2. Bootstrap

Bootstrap is the world's most popular front-end component library, developed by Twitter. It's a comprehensive framework for building responsive, mobile-first websites quickly.

  • Key Characteristics of Bootstrap:
    • Responsive Grid System: A flexible grid layout that adapts to various screen sizes.
    • UI Components: Includes pre-designed components like navigation bars, forms, buttons, cards, carousels, and more.
    • JavaScript Plugins: Offers optional JavaScript plugins for interactive elements.
    • Sass/Less Support: Allows for deep customization through CSS pre-processors.

The Understrap Synergy: Best of Both Worlds

By merging Underscores with Bootstrap, Understrap offers a unique advantage:

  • It provides the structural integrity and WordPress best practices of Underscores for the backend and theme logic.
  • It delivers the powerful, responsive, and component-rich front-end capabilities of Bootstrap for rapid UI development and consistent design across devices.

This combination allows developers to focus on unique functionalities and design elements rather than spending time on basic setup or ensuring responsiveness from scratch.

Understrap Theme Framework and Child Starter Theme

Understrap typically refers to the Understrap Theme Framework itself. However, for development, many developers utilize a "Child Starter Theme" provided within the Understrap ecosystem. This approach is standard practice in WordPress development:

  • Understrap Theme Framework: This is the main theme that provides all the core functionalities and integrates Underscores and Bootstrap.
  • Child Starter Theme: Developers are encouraged to create or use a child theme based on the Understrap Framework. This allows for deep customizations without altering the core Understrap files. When the main Understrap theme updates, the child theme's customizations remain intact, ensuring a future-proof development workflow.

Why Choose WordPress Understrap?

Understrap has gained significant traction among developers for several compelling reasons:

  • Rapid Development: Jumpstart projects with pre-built responsive components and a solid WordPress structure.
  • Mobile-First & Responsive: Inherits Bootstrap's robust responsive grid, ensuring websites look great on any device.
  • Extensive Customization: Provides a flexible base for unique designs, allowing developers to override Bootstrap's default styles and extend Underscores' functions.
  • Well-Documented & Supported: Benefits from comprehensive documentation and an active developer community.
  • SEO-Friendly: Built on WordPress best practices and clean code, which are beneficial for search engine optimization.
  • Sass/SCSS Integration: Offers easy customization of Bootstrap's variables and styles using Sass.

How Developers Use Understrap

Developers typically follow these steps to leverage Understrap for theme development:

  1. Installation: Install the Understrap theme (or its child starter theme) like any other WordPress theme.
  2. Child Theme Setup: If using the main Understrap theme, create a child theme. If using the provided child starter theme, activate it.
  3. Customization:
    • Modify Bootstrap's default styles via Sass variables to match branding.
    • Add custom CSS and JavaScript.
    • Develop custom page templates, post types, and functions within the child theme.
    • Utilize Bootstrap's extensive component library for UI elements.
  4. Deployment: Deploy the customized child theme to a live WordPress site.

Example Use Cases

Understrap is versatile and can be used for a variety of WordPress projects:

  • Corporate Websites: Building professional, responsive business sites.
  • E-commerce Stores: Integrating with plugins like WooCommerce to create online shops.
  • Blogs and Portfolios: Developing personalized blogs or showcasing creative work.
  • Custom Web Applications: Serving as a foundation for more complex web applications powered by WordPress.

In essence, WordPress Understrap streamlines the development process, offering a powerful yet flexible foundation that empowers developers to create high-quality, responsive WordPress themes efficiently.