Custom WordPress Theme Building with ACF Pro

Custom WordPress Theme development with ACF Pro

Building a custom theme for your WordPress website can seem like a daunting task. There are so many different elements to consider, from the layout and design to the functionality and user experience. However, with the help of Advanced Custom Fields (ACF) Pro, developing a custom WordPress theme can be a seamless and efficient process.

While there are countless ready-made themes available, building a custom WordPress theme using Advanced Custom Fields (ACF) Pro can give your website a personalised touch and enhanced functionality.

Understanding Custom WordPress Themes

What is a Custom WordPress Theme?

A custom WordPress theme is a unique design and layout created specifically for a website. Unlike pre-built themes, custom themes are tailored to meet the specific requirements and branding of a business or individual. They offer complete control over the appearance, functionality, and user experience of a website.

Benefits of Custom WordPress Themes

  1. Unique Branding: A custom theme allows you to create a website that perfectly reflects your brand identity, enhancing recognition and credibility.
  2. Flexibility and Scalability: Custom themes offer flexibility in terms of design and functionality, allowing you to add or modify features as your website grows.
  3. Optimised Performance: By eliminating unnecessary code and features, custom themes can improve website performance, resulting in faster loading times and better user experience.
  4. Improved SEO: Custom themes provide the opportunity to optimise your website for search engines, making it easier for users to find your content.
  5. Enhanced Security: Custom themes are less vulnerable to security breaches since they are not widely available or known to potential attackers.

Getting Started with ACF Pro

What is ACF Pro?

ACF Pro, or Advanced Custom Fields Pro, is a popular WordPress plugin that enables website developers to create and manage custom fields effortlessly. It provides a user-friendly interface for adding custom fields to posts, pages, and other content types, enhancing the flexibility and customisation options of a WordPress website.

Advantages of ACF Pro

  1. Intuitive Interface: ACF Pro offers a straightforward and intuitive interface, making it easy for developers of all skill levels to work with custom fields.
  2. Extensive Field Types: The plugin supports a wide range of field types, including text, image, date, select, repeater, and more, allowing you to capture diverse data.
  3. Conditional Logic: ACF Pro includes powerful conditional logic capabilities, enabling you to show or hide fields based on specific conditions, enhancing the user experience.
  4. Integration with Third-Party Plugins: ACF Pro seamlessly integrates with other popular plugins, such as WooCommerce and Yoast SEO, expanding its functionality.

Building a Custom WordPress Theme

1. Planning and Design

Planning and design play a crucial role in creating a successful custom WordPress theme. Before diving into the development process, take the time to carefully plan and design your theme to ensure it aligns with your website’s goals, target audience, and desired functionalities. This stage sets the foundation for a cohesive and user-friendly theme that reflects your brand identity. Here are key steps to consider:

2. Defining Your Website’s Goals

Start by clarifying the goals of your website. Determine the purpose it serves, whether it’s to showcase a portfolio, sell products, provide information, or engage with users. Understanding the primary objectives of your website will help shape the design and functionality of your custom theme.

3. Identifying Your Target Audience

Consider the demographics, interests, and needs of your target audience. Research their preferences and behaviours to create a design that resonates with them. By tailoring your theme to your target audience, you can enhance user engagement and create a positive user experience.

4. Outlining Website Structure and Content

Create a sitemap to define the structure of your website. Determine the main pages, categories, and hierarchical relationships between them. This step helps in organising your content and ensuring a logical flow throughout the website.

5. Wireframing and Mockups

Visualise the layout and structure of your theme by creating wireframes or mockups. Wireframes are simple, black-and-white representations that focus on the placement of elements and overall layout. Mockups, on the other hand, provide a more detailed representation, incorporating design elements and branding. Use tools like Sketch, Figma, or Adobe XD to create these visual representations.

6. User Experience Considerations

Consider how users will navigate your website and interact with its elements. Ensure the user interface is intuitive and easy to navigate. Pay attention to the placement of menus, buttons, and interactive elements to create a seamless browsing experience. Optimise the website for accessibility, making it inclusive for all users.

7. Branding and Visual Design

Develop a visual design that reflects your brand identity. Choose appropriate colors, fonts, and imagery that align with your brand guidelines. Create a consistent visual language throughout the theme to strengthen brand recognition and credibility.

8. Responsive Design

In today’s mobile-centric world, it’s crucial to design your custom theme to be responsive across different devices and screen sizes. Ensure that the layout adapts gracefully to mobile phones, tablets, and desktops, providing a seamless experience for all users.

Setting Up the Theme Files

Once you have completed the planning and design phase, it’s time to set up the necessary files and folders for your custom WordPress theme. Here are the essential files you need to define:

1. Theme Directory

Create a new directory within the WordPress themes folder to house your custom theme. Choose a descriptive name for your theme directory that reflects its purpose and brand.

2. Style.css

The style.css file is the main stylesheet of your theme. It contains the CSS rules that define the visual appearance of your website. Include the appropriate metadata, such as the theme name, author, version, and description, at the top of the file.

3. Index.php

The index.php file serves as the main template file for your theme. It defines the structure and layout of your website’s homepage. Start by setting up the basic HTML structure and include template tags or loops to display dynamic content.

4. Header.php

The header.php file contains the code for the header section of your theme. This includes the site title, logo, navigation menu, and any other elements that appear at the top of every page. Ensure that the header is consistent across all pages and reflects your branding.

5. Footer.php

The footer.php file contains the code for the footer section of your theme. It typically includes copyright information, social media icons, and other relevant elements. Design the footer to complement the overall theme design and provide a cohesive user experience.

6. Functions.php

The functions.php file is where you add custom functionality to your theme. This includes registering and enqueueing stylesheets and scripts, creating custom post types and taxonomies, defining theme support features, and more. Use this file to extend the capabilities of your custom theme and add custom functionality.

By setting up these essential theme files, you establish the structural foundation for your custom WordPress theme. This allows you to proceed with integrating the powerful features of ACF Pro into your theme, enhancing its customisation options and functionality.

Integrating ACF Pro

ACF Pro is a powerful WordPress plugin that allows you to create and manage custom fields effortlessly. Integrating ACF Pro into your custom theme expands the range of possibilities for capturing and displaying dynamic content. Here’s how you can seamlessly integrate ACF Pro into your theme:

  1. Install and Activate ACF Pro: Begin by installing the ACF Pro plugin through the WordPress dashboard. Once installed, activate the plugin to make it available for use in your custom theme.
  2. Creating Custom Field Groups: With ACF Pro activated, you can now create custom field groups that define the fields and data you want to capture. Specify the post types, pages, or other content types where these fields will appear.
  3. Defining Custom Fields: Within each custom field group, define the specific fields you need to capture the desired data. ACF Pro provides an extensive range of field types, such as text, image, select, repeater, and more. Configure each field’s settings, such as default values, required fields, and conditional logic.
  4. Retrieving and Displaying Field Data: ACF Pro offers a set of functions and hooks that allow you to retrieve and display the custom field data within your theme files. Utilise these functions to access the field values and integrate them seamlessly into your theme’s templates.
  5. Styling and Design: Customise the appearance of the custom fields to ensure they blend seamlessly with your theme’s design. Apply appropriate CSS styles and layout adjustments to present the field data in an aesthetically pleasing manner.

By integrating ACF Pro into your custom theme, you empower yourself with a flexible and intuitive system for capturing and displaying custom field data. This integration allows you to tailor your website’s content and functionality precisely to your needs, enhancing the overall user experience.

Now that you have laid the foundation of your custom WordPress theme and integrated ACF Pro, you can proceed with the next steps of building the theme, such as creating custom templates, implementing the desired functionalities, and styling the theme to perfection.

Creating Custom Fields

ACF Pro Custom Fields

One of the powerful features of ACF Pro is the ability to create custom fields that capture specific data for your WordPress theme. These custom fields enable you to add dynamic content and enhanced functionality to your website. Here’s a closer look at the process of creating and implementing custom fields:

1. Using the ACF Pro Interface

ACF Pro provides a user-friendly interface within the WordPress admin dashboard, making it easy to create and manage custom fields. Start by accessing the “Custom Fields” menu and creating a new field group. A field group acts as a container for the custom fields you want to associate with a specific content type or template.

2. Defining Custom Fields

Within each field group, you can define the custom fields you need to capture the desired data. ACF Pro offers an extensive range of field types, catering to various data types and content needs. You can create fields for text inputs, checkboxes, radio buttons, select dropdowns, images, file uploads, dates, and more. Each field type has its own set of configuration options, allowing you to specify default values, set validation rules, and determine whether the field is required.

3. Configuring Field Options

ACF Pro provides additional options for each custom field to enhance its functionality and usability. For instance, you can set conditional logic to show or hide fields based on specific criteria. You can also define field dependencies, where the visibility of one field depends on the value of another field. These options give you granular control over how your custom fields behave and interact with each other.

4. Implementing the Custom Fields

Once you have defined the custom fields using the ACF Pro interface, you can implement them within your theme files. ACF Pro offers a set of functions and template tags that allow you to retrieve and display the values of the custom fields. By incorporating these functions into your theme’s templates, you can seamlessly integrate the custom field data into the appropriate sections of your website.

5. Customising the Display

To ensure a cohesive design, it’s essential to customise the display of the custom fields to align with your theme’s aesthetics. You can modify the HTML structure and apply CSS styles to the field containers, labels, inputs, and any other associated elements. This allows you to blend the custom fields seamlessly with the overall design of your theme, creating a consistent and visually appealing user experience.

6. Styling and Customisation

In addition to custom fields, styling and customisation play a vital role in enhancing the visual appeal of your custom WordPress theme. Apply custom styles and CSS to modify the layout, typography, colours, and other design elements to align with your brand’s aesthetic. Consider responsiveness and optimise your theme to ensure it looks great and functions well across various devices and screen sizes.

By utilising custom fields and carefully styling and customising your theme, you can create a dynamic and visually engaging website that captures and presents data in a user-friendly and aesthetically pleasing manner.

Testing and Optimising

1. Testing the Theme

Before launching your custom WordPress theme, thoroughly test it across multiple browsers and devices. Check for any rendering issues, broken links, or compatibility problems. Test all interactive features and ensure the website functions as intended.

2. Optimising for Performance

To provide a smooth and fast user experience, optimise your custom theme for performance. Minify CSS and JavaScript files, optimise images, implement caching, and leverage browser caching. Use performance monitoring tools to identify and fix any bottlenecks.


Building a custom WordPress theme with ACF Pro allows you to create a unique and tailored website that perfectly aligns with your brand. By harnessing the power of custom fields, you can add dynamic content and enhanced functionality, providing a seamless user experience. Start exploring the world of custom WordPress themes and unlock endless possibilities for your online presence.


1. Can I build a custom WordPress theme without coding skills?

Yes, you can build a custom WordPress theme without coding skills by using drag-and-drop website builders or pre-built theme frameworks. However, for more advanced customisation, coding knowledge might be beneficial.

2. Is ACF Pro compatible with all WordPress themes?

ACF Pro is compatible with most WordPress themes. However, some themes might require additional customisation to fully integrate and utilise the plugin’s features.

3. Can I use ACF Pro on an existing WordPress website?

Yes, you can install and activate ACF Pro on an existing WordPress website. However, implementing custom fields into your theme files and content might require some modifications.

4. What happens if I deactivate ACF Pro on my custom theme?

If you deactivate ACF Pro on your custom theme, any content or functionality relying on the plugin’s custom fields will no longer work correctly. Make sure to plan accordingly and have a fallback solution in place.

5. Can I use ACF Pro on a multisite WordPress installation?

Yes, ACF Pro is compatible with multisite WordPress installations. You can activate the plugin network-wide or on specific sites within the network.

Get Started

Ready to get going? Click on one of the buttons below and tell us more about the web design, web development or website fix you need and we will be in touch with you within hours with some options to get your business moving in the right direction