201 850 7044

Product wiki

Product Wiki is your comprehensive guide to our assortment! Here, you’ll find everything from detailed technical information to step-by-step interior and exterior door installation instructions. Our FAQ section covers answers to common questions. The blog announces the latest promotions and updates about our new collections and models. In addition, there are tons of helpful articles, including door industry trends. We invite you to explore, learn, and engage with our content to make your home improvement journey seamless and enjoyable. Our experts’ task is to help you create a space you’ll love!

November 6, 2025

15% off on the Modular collection

Spring transformation! Bring organization and aesthetics to your space with quality Belldinni interior doors at the best prices!

November 6, 2025

$299 for any size: transform your home with primed doors

Your interior design dreams are now even more affordable! Velblue Properties Inc is pleased to announce a limited-time promotion.

November 6, 2025

Limited offer on the Velbluepro collection!

Our most luxurious interior doors, which will add a unique charm and elegance to your home, becoming an accent element in the room, are now available at very attractive prices!

November 6, 2025

We’ve just added baseboards to our product range!

Baseboards are one of those often overlooked elements in interior design that make a significant difference.

INTERIOR DOOR SIZE

Check the door sizes chart to make sure the doors your are purchasing are the right ones for your project.

INTERIOR DOOR SIZE

Check the door sizes chart to make sure the doors your are purchasing are the right ones for your project.

FAQ

Read up on Frequently Asked Questions – your question may already be answered here.

VIDEO GUIDE

Watch a comprehensive video guide on how to install door systems, hardware and more.

GLOSSARY

Browse our extensive dictionary that explains door related terminology.

SOLUTIONS

Learn about all the door systems that we offer.

How to install bI-fold doors

Please explore our guide with explanations and drawings to install bi-fold doors properly. This file is also available in Spanish.

Invisible Frame doors with an easy installation kit are excellent for modern interiors. Check your order and start installing them with our 27-page guide.

How to install Invisible Frame Doors

How to install pre-hung doors

Pre-hung doors with an easy installation kit are excellent for modern interiors. Check your order and start installing them with our 15-page guide.

Frameless Doors Installation Guide

In this 7-minute video, you’ll find complete instructions on installing frameless doors yourself, from preparing the necessary tools to assembling the door frame, slab, and hardware. We’ve also collected helpful tips on when to finish the floor and walls.

Frameless Doors (Reverse) Installation Guide

Clear and step-by-step instructions for assembling and installing Belldinni frameless doors (reverse) are presented in this video. Our specialists share all the relevant information, including the correct renovation sequence.

How to install exterior doors

To install the exterior doors yourself, download the instructions, which provide all the necessary information with a step-by-step algorithm of actions.

Frame and Wall Painting Guide for Frameless Primed Doors by

Our experts prepared detailed instructions (6-minute video) that show the entire process, from preparing all the necessary tools to plastering and painting the wall and door.