Description
Stackable adds 42 custom blocks to the WordPress editor, paired with a global design system that centralizes colors, typography, spacing, borders, buttons, and icons to apply across the entire site at once. The library includes hundreds of ready-made designs and dozens of full-page templates that inherit the block theme’s styling, serving anyone who needs to build pages in Gutenberg without reaching for an external builder.
Key Features of Stackable
- 42 custom blocks
A set of native editor blocks you enable as your project requires. - Global design system
Central controls for color, typography, spacing, border, button, and icon that apply to the entire site. - Hundreds of ready-made designs
A library of patterns and dozens of block layouts importable directly in the editor. - Full-page templates
Dozens of complete pages ready to insert and adjust to your project’s content. - Block theme inheritance
Designs read styles from theme.json and adopt the visual identity already defined.
Benefits of Stackable
- Adjust in one place
Changing a global color or font carries through every page without manual editing. - Less time per page
Starting from a ready-made pattern cuts the repetitive work of building sections from scratch. - Consistent visuals maintained
Global schemes prevent style drift between pages built by different people. - Lightweight loading
The blocks run on top of the native editor, skipping the extra layer of a visual builder.
Who Is Stackable For?
- Anyone who publishes content frequently and wants visual sections built right inside the block editor.
- Anyone building client sites who needs to standardize colors, fonts, and spacing at scale.
- Aimed at those already working with block themes who want to expand their layout repertoire without switching tools.
How to Download Stackable
Stackable is available for download here on Ultrapack. Step-by-step install instructions for this file are in the How to install tab, next to the description. Once activated, the blocks and global controls appear inside the WordPress block editor.
For anyone building in the native editor, Stackable occupies the space between plain Gutenberg and a visual builder: it expands the block repertoire and design library without leaving the standard WordPress workflow. The combination of global schemes with patterns that read theme.json favors long-term projects, where each new page needs to be born aligned with what already exists.
Frequently asked questions
Is Stackable GPL-licensed?
Yes. Stackable is distributed under the GPL (GNU General Public License). You may legally use, modify and redistribute it on as many sites as you want.
Can I use Stackable on multiple sites?
Yes. You can install Stackable on as many sites as you want. Only automatic updates through Ultrapack Auto Updater have a limit: from 3 to 80 sites, depending on the plan.
How much does Stackable cost at Ultrapack?
Stackable costs US$2.99 as a single purchase, and it is also included in the subscription plans starting at US$12/mo (VIP I).
Does Stackable include updates?
Yes. The current version of Stackable is 3.20.0, published at Ultrapack on Aug 21, 2026. Subscribers update straight from the WordPress dashboard with UAU (Ultrapack Auto Updater).
Is Stackable scanned before publication?
Yes. Every version of Stackable goes through a malware scan (ClamAV and YARA rules, at UltraHub) before it is published.
What are the requirements for the plugin Stackable?
Requires WordPress 6.9 or higher and PHP 7.4 or higher. Tested up to WordPress 7.1.
What changed in this version
Version 3.20.0
- New: Design Library - save and manage your own patterns (Premium) #3629
- New: Settings - default to theme margins for Heading blocks #3673
- New: Settings - default icon for Icon List block #3674
- Change: Dynamic Content - optimized PHP memory usage #1986
- Fixed: Design Library - faster previews and smoother browsing #3629
- Fixed: Editor - Safari responsive preview no longer freezes #3726
- Fixed: Yoast SEO - analysis highlighting works with Stackable blocks #3727
- Fixed: Icon List - improved Widgets screen performance #3728
- Fixed: Tabs block - Separator blocks now display correctly #3713
- Fixed: WooCommerce - product duplicates keep block attributes intact #3731
- Fixed: Design Library - no longer shows blank on fetch errors #3732
- Fixed: Custom CSS - no validation error after switching to Free #3734
Version 3.19.10
- Fixed: Better Yoast plugin compatibility #3715
- Fixed: Blocks not reflecting the latest saved value in the frontend #3715
- Fixed: MailPoet - fixed compatibility with default Stackable text block #3718
- Fixed: Feature grid block - fixed justified columns #3717
- Fixed: Hardened deprecated block defaults endpoints #3725
Version 3.19.9
- Fixed: Tablet and mobile preview styles now apply correctly in WP 7.0 #3711
- Fixed: Columns block - column justify now working when column wrapping is enabled #3703
- Fixed: Horizontal scroller - fixed first click handling issues #3697
- Fixed: Carousel - fixed JS error encountered with infinite scroll #3695
- Fixed: Tour - First Stackable tour closes right away #3699
- Fixed: Motion effects - fixed scroll position issue if there is a video near the top of the page #401
- Fixed: Image box - button group overlap #3706
- Fixed: Icon block - custom SVG can be not visible in the editor #3707
Version 3.19.8
- Fixed: Dynamic content - prevent looping over itself when used with Query Loop block #2568
- Fixed: Dynamic content - improved performance #3160
- Fixed: Image block - fixed shape flip in iOS #3650
- Fixed: Admin UI improvements #3681
- Fixed: Text block - transforming to icon list now works properly #3682
- Fixed: Fixed rendering issues with lazy loaded images #3684
- Fixed: Icon block - fixed visual glitch in Safari #3687
- Fixed: Carousel block - loading issue edge case when used with display conditions #3688
- Fixed: Motion effects - loading issue when used together with display conditions #3693
Version 3.19.7
- New: Additional 11 guided tours to help you master Stackable
- New: Posts block - you can now pick taxonomy terms for CPTs #3678
- Fixed: Posts block - formatting breaks on horizontal layouts #3554
- Fixed: Posts block - hover effects not working on some layouts #2583
- Fixed: Posts block - links are now not clickable in portfolio layouts #398
Release notes published by the developer.
How to install
Automatic updates: this item is updated by the Ultrapack Auto Updater. With it installed, the new version shows up in your dashboard like any other WordPress update (how to set it up).
- Download the file
stackable-ultimate-gutenberg-blocks-premium.zip. - In the WordPress dashboard, go to Plugins > Add New > Upload Plugin.
- Select the file
stackable-ultimate-gutenberg-blocks-premium.zipand click Install Now. - Click Activate.
Requirements: Requires WordPress 6.9 or higher and PHP 7.4 or higher. Tested up to WordPress 7.1.
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UAU Ready