Building Custom WordPress Themes from Scratch

Posted on 16th June 2023

WordPress is a content management system (CMS) that enables you to create a website or blog from scratch, or to improve an existing website. It is a free and open source platform with a huge community of users and developers.

One of the reasons WordPress is so popular is that it is relatively easy to use and customise. This is thanks to the thousands of themes and plugins that are available.

In this article, we will focus on how to build custom WordPress themes from scratch. We will cover the following topics:

What is a WordPress Theme?

A WordPress theme is a collection of files that work together to produce a graphical interface with an underlying unifying design for a website. A theme modifies the way the site is displayed, without modifying the underlying structure or content of the site.

Themes are composed of template files, template tags, and style sheets. Template files are used to generate the HTML code that is displayed on the web pages. Template tags are used to fetch data from the WordPress database and display it on the page. Style sheets are used to style the HTML code.

A theme can be divided into three parts:

  • The Header: This is the code that is displayed at the top of every page on your website. It usually includes the site title, slogan, and navigation.
  • The Body: This is the main content area of the website. It includes the posts and pages.
  • The Footer: This is the code that is displayed at the bottom of every page on your website. It usually includes information such as the copyright notice and contact information.

Why Use a Custom WordPress Theme?

There are two main reasons for building a custom WordPress theme:

  1. To create a unique design for your website: If you want your website to stand out from the crowd, you will need to create a custom WordPress theme. With a custom theme, you can control every aspect of the design, from the overall layout to the smallest details.
  2. To improve the performance of your website: A custom WordPress theme can be optimised for performance. This means that your website will load faster and will be more responsive.

How to Build a Custom WordPress Theme

Building a custom WordPress theme is not as difficult as it may seem. In fact, it is quite simple if you follow the steps below.

1. Choose a WordPress Theme Framework

A WordPress theme framework is a platform that is used to build WordPress themes. It provides a basic structure for the theme, as well as a number of features and functions. Using a WordPress theme framework will save you a lot of time and effort when building a custom WordPress theme.

There are a number of WordPress theme frameworks available, such as the following:

2. Choose a WordPress Theme

Once you have chosen a WordPress theme framework, you will need to choose a WordPress theme. There are two options:

  1. Free WordPress Themes: There are a number of free WordPress themes available. You can find them by searching the WordPress theme directory or by searching Google.
  2. Premium WordPress Themes: Premium WordPress themes are themes that you pay for. They usually have more features and options than free WordPress themes. You can find premium WordPress themes on sites like ThemeForest.

3. Install the WordPress Theme

Once you have chosen a WordPress theme, you will need to install it. You can do this by logging into your WordPress admin panel and going to the Appearance > Themes > Add New page. From here, you can either upload the theme ZIP file or search for the theme by name.

4. Activate the WordPress Theme

After you have installed the WordPress theme, you will need to activate it. You can do this by going to the Appearance > Themes page and clicking on the Activate link under the theme.

5. Customize the WordPress Theme

Once you have activated the WordPress theme, you can start customizing it. You can do this by going to the Appearance > Customize page. From here, you can change things like the site logo, color scheme, and widget areas.

Conclusion

Building a custom WordPress theme from scratch is not as difficult as it may seem. By following the steps above, you can easily create a unique and custom WordPress theme for your website.

Building Custom WordPress Themes from Scratch

If you’re a web developer, chances are good that you’ve considered creating a custom WordPress theme at some point. Maybe you want to create a theme for a client, or perhaps you want to sell your theme on a marketplace like ThemeForest. In either case, you’ll need to know how to build a WordPress theme from scratch.

Fortunately, it’s not as difficult as you might think. In this article, we’ll walk you through the process of creating a custom WordPress theme, step by step.

Step 1: Choose a Theme Framework

The first step in creating a custom WordPress theme is to choose a theme framework. A theme framework is a code library that provides a foundation for building WordPress themes. It includes code for common features like menus, sidebars, and widgets, so you don’t have to start from scratch.

There are dozens of theme frameworks available, but some of the most popular are the Genesis Framework, the Underscores (_s) starter theme, and the Bootstrap Framework.

Step 2: Create a Child Theme

If you’re using a theme framework, the next step is to create a child theme. A child theme is a WordPress theme that inherits its functionality from a parent theme. That means you can customize the child theme without touching the parent theme’s code.

Creating a child theme is a two-step process. First, you’ll need to create a folder for your child theme on your web server. Then, you’ll need to create a stylesheet for your child theme.

Creating the Child Theme Folder

To create the child theme folder, you’ll need to use an FTP client or your web hosting control panel. Create a new folder in the /wp-content/themes/ directory and name it something like my-child-theme.

Creating the Stylesheet

Next, you’ll need to create a stylesheet for your child theme. The stylesheet is a file that contains your theme’s CSS code. It tells WordPress how your theme should look.

Create a new file in the my-child-theme folder and name it style.css. Then, add the following code to the top of the file:

/*

Theme Name: My Child Theme

Theme URI: http://example.com/my-child-theme/

Description: A child theme of the Genesis Framework

Author: John Doe

Author URI: http://example.com

Template: genesis

Version: 1.0.0

*/

Be sure to replace the theme name, theme URI, description, author, and author URI with your own information. The template should be the name of the parent theme’s folder. For example, if you’re using the Genesis Framework, the template would be genesis.

Step 3: Create Theme Template Files

The next step is to create your theme’s template files. Template files are PHP files that control how your WordPress site looks and functions.

There are dozens of template files in a WordPress theme, but you’ll only need to create a few for a basic theme. The most important template files are:

  • header.php – This file contains the code for your theme’s header. The header usually includes the site title, navigation menu, and other elements.
  • footer.php – This file contains the code for your theme’s footer. The footer usually includes the copyright notice and a link to the WordPress.org website.
  • index.php – This file is the “fallback” template. If WordPress can’t find a template file for a specific page, it will use index.php.
  • single.php – This file is used to display single blog posts.
  • page.php – This file is used to display static pages.
  • archive.php – This file is used to display archives of posts (categories, tags, dates, etc).
  • search.php – This file is used to display search results.

You can create these files from scratch, or you can use the parent theme’s files as a starting point.

Step 4: Customize Your Theme

Once you’ve created your theme’s template files, it’s time to start customizing your theme. You can do this by adding your own CSS code to the style.css file, or by modifying the PHP code in the template files.

If you’re not a PHP programmer, don’t worry. You can still create a great looking WordPress theme without touching a line of code. There are plenty of resources available to help you learn CSS, such as Codecademy and W3Schools.

Step 5: Test Your Theme

Before you publish your theme, it’s important to test it thoroughly. Install WordPress on a local server or on a test site and activate your theme. Then, try all the features of your theme to make sure everything is working correctly.

It’s also a good idea to test your theme in different browsers. Make sure your theme looks good in all the major browsers, including Chrome, Firefox, Safari, and Internet Explorer.

Step 6: Publish Your Theme

Once you’re happy with your theme, it’s time to publish it. If you’re selling your theme on a marketplace like ThemeForest, you’ll need to follow their guidelines for submitting themes.

If you’re not selling your theme, you can upload it to your WordPress site by uploading the theme folder to the /wp-content/themes/ directory. You can do this using an FTP client or your web hosting control panel.

Conclusion

As you can see, creating a custom WordPress theme is not as difficult as it might seem. With a little time and effort, you can create a theme that’s perfect for your needs.

If you’re not a PHP programmer, don’t worry. You can still create a great looking WordPress theme without touching a line of code.

Once you’ve created your theme, it’s important to test it thoroughly. Install WordPress on a local server or on a test site and activate your theme. Then, try all the features of your theme to make sure everything is working correctly.