Description
Duplex is a WordPress theme for architecture and interior design that allows you to create complete websites with a grid masonry project gallery, high-resolution image slider, inner pages for detailing projects, and an integrated contact form. The theme includes several ready-importable demos with one click, color and typography customization options, customizable header and footer, responsive layout, and mobile device optimization, making it ideal for architects, interior designers, and decorators looking for a professional online presence without programming.
Main Features of Duplex
- Grid Masonry Gallery
Displays projects dynamically with category filter support. - Feature Slider
Shows featured images on the homepage with smooth transitions. - Project Detail Pages
Individual pages for each project with description, images, and information. - Contact Form
Integrated form with validation to receive client inquiries. - Visual Customization
Change colors, fonts, and layout directly via WordPress Customizer.
Benefits of Duplex
- Professional Online Presence
Create an elegant portfolio to attract new clients. - Easy Updates
Add new projects without technical assistance. - Time Savings
Build the site quickly with ready demos and pre-defined layouts. - Mobile Compatibility
Responsive site that adapts to smartphones and tablets.
Who Duplex is Recommended For
- Architects who want to showcase their projects in an organized and visual manner.
- Interior designers who want to showcase portfolios and receive quotes.
- Decorators and furniture stores that need an elegant site to showcase spaces and products.
How to Download Duplex
Duplex is available for download here on Ultrapack. After downloading the .zip file, install it in Appearance > Themes > Add New > Upload Theme, select the file and activate. The theme is complete and ready for immediate installation.
Duplex was designed to meet the specific needs of architecture and design professionals, focusing on visual presentation of projects. The combination of dynamic gallery, clean layout, and simplified customization allows each site to reflect the studio or professional’s identity without technical complexity. It is the right tool for those who want to showcase their work with elegance and functionality, with an interface that prioritizes visitor experience and ease of navigation. For architects and interior designers seeking a striking online presence, Duplex provides a solid foundation and aesthetically aligned with the interiors and architecture market.
Frequently asked questions
Is Duplex – Interior & Architecture Design WordPress Theme GPL-licensed?
Yes. Duplex – Interior & Architecture Design WordPress Theme 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 Duplex – Interior & Architecture Design WordPress Theme on multiple sites?
Yes. You can install Duplex – Interior & Architecture Design WordPress Theme 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 Duplex – Interior & Architecture Design WordPress Theme cost at Ultrapack?
Duplex – Interior & Architecture Design WordPress Theme 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 Duplex – Interior & Architecture Design WordPress Theme include updates?
Yes. The current version of Duplex – Interior & Architecture Design WordPress Theme is 3.0, published at Ultrapack on Sep 4, 2026. Subscribers update straight from the WordPress dashboard with UAU (Ultrapack Auto Updater).
Is Duplex – Interior & Architecture Design WordPress Theme scanned before publication?
Yes. Every version of Duplex – Interior & Architecture Design WordPress Theme goes through a malware scan (ClamAV and YARA rules, at UltraHub) before it is published.
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).
The file on this page is the developer’s full package, with documentation, demos and plugins. Do not upload that file to WordPress. The theme comes ready inside it, as a ZIP of its own, and that is the one you upload.
- Download the file
elements-duplex-interior-and-architecture-wordpress-theme.zipand extract it on your computer. - Look inside the extracted files for the file
duplex-wp-full/duplex.zip. - In the WordPress dashboard, go to Appearance > Themes > Add New > Upload Theme.
- Select that file and click Install Now.
- Click Activate.
- There is nothing to zip. The ZIP inside the package is already in the format WordPress accepts.
- Uploading the whole package is the most common mistake when installing a theme: WordPress answers that no valid theme was found, and nothing is installed.
- The rest of the package belongs to the author: documentation, demo files and, in some themes, the plugins it asks for during setup.
Stuck on a step? Open a ticket telling us which one you stopped at.

UAU Ready