If you need help from our experts, please contact us at (848) 456-70-50 or order a call. They will help you select a stylish interior door model, configuration, size, color, and quality hardware for your home.
If you need help from our experts, please contact us at (848) 456-70-50 or order a call. They will help you select a stylish interior door model, configuration, size, color, and quality hardware for your home.
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Our prefinished doors, a modern solution for professionals, offer easy installation, customization options, and short lead time. For builders, developers, contractors, designers, and architects, discounts of up to 23% are available.
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Explore our interior and exterior doors in the catalog on the website and our convenient virtual showroom in Paramus, which is open 24/7. Save your time with the Door Design Lab interactive 3D tour!
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Interior Doors – Page 11
INTERIOR SLAB DOORS BY SIZE
Door Design Lab believes that our customers should have options. That's why we don't limit you to standard door sizes. You can choose from various door heights and widths, including custom sizes so that they fit perfectly into your space.
INTERIOR DOORS BY GLASS STYLE
The French collection of glazed doors is not just a trend; it's a timeless solution that will always stay in style. With a wide selection of glass options, including frosted, clear, and tempered, you can find the perfect door to suit your needs.
Interior door slabs by panel type
Door Design Lab offers a wide product range of interior door models decorated with 1, 2, 3, 4, or 5 panels. They are a stylish solution with minimalistic clean lines for modern living spaces, becoming a beautiful accent in the room.
INTERIOR DOORS BY finish
Explore our premium doors by Belldinni in a variety of timeless colors and quality finishes that are durable and easy to maintain. Each type of coating looks spectacular in modern interiors, reliably protecting the slab from external factors.
Download our catalog
Get inspired—download our full catalog to explore all interior door models, finish types, and configurations. Find your perfect match today!
Downloadcustomization options
width up to 42''
height up to 108''

We can personalize an interior door to the specifics of your project, including hardware, finish, glass options, height, width and more.
Glass
Clear | Frosted | Black
Precut
for your hardware
Aluminum Strips
Decorative elements
Finish
Primed doors and frame
COLOR INFORMATION
Color is one of the most important aspects of interior design, so our experts have prepared detailed step-by-step instructions on how to choose the right shade for your doors.
WHAT IS SPECIAL ABOUT OUR SOLID CORE?
Engineered solid core is an eco-friendly wood fiber material responsible for soundproofing and keeping heat inside the room so your home will always be cozy and quiet for every family member.
> BROWSE SOLID CORE DOORSSoundproofing
Enjoy silence with solid core doors: relax after a day's work or concentrate on important tasks without being distracted by extraneous noises.
Heat insulation
This high-quality door filling increases the home's energy efficiency while maintaining a comfortable microclimate.
Eco-friendly
We care about the planet, so we offer doors with an engineered solid core, a wood fiber material that is entirely safe for humans and the environment.
SHIPPING
As we value your time, our company has arranged the best shipping terms for any state in the USA except Alaska, Arizona, Hawaii, California, and Nevada.. Check our website for pricing information, or contact our call center to calculate the exact cost.
City Name
ARTICLES
Our blog features expert content to help you choose the right door, stay updated on industry trends, and access detailed installation guides. We invite you to explore, learn, and engage with our articles to make your home improvement journey seamless and enjoyable.
April 1, 2024
How To Install an Interior Door: Steps and Tips for Installing a Door
For brave homeowners who dare to install wooden interior doors independently, we have prepared step-by-step and clear instructions to avoid mistakes.
April 1, 2024
Interior door hardware trends - How to Choose Door Hardware.
Every interior door needs hardware. We recommend that even door hardware, which may seem the least important element at first glance, be chosen carefully.
March 13, 2022
Interior Door buying guide. What to consider when choosing an Interior door
Whether you're building a new home and need interior doors or replacing an existing door, the first step to buying a new interior door is to choose the right door configurations.
5 common problems with interior doors and how to solve them
Because doors are subjected to heavy daily use, it is essential to ensure they are properly maintained. If these minor faults are repaired in a timely manner, interior doors will last much longer.
Issue |
Description |
Solution |
Guide |
|---|---|---|---|
Tight door |
The slab rubs against the floor or frame, requiring extra effort to open and close. |
Check the hinges—they may have loosened. If that doesn't help, try trimming the edge of the slab or adjusting the door frame. |
|
Squeaky door |
An unpleasant noise is heard when opening or closing. |
Lubricate the hinges. If the squeak persists, replace the worn ones. |
|
A door that won't stay open or closed |
It constantly opens or closes spontaneously. |
Check the level—most likely, the door is uneven. Adjust a door frame and hinges. |
|
Sagging door |
The slab catches on the floor or is difficult to close due to warping. |
Tighten the hinge fasteners and ensure the frame is level. |
|
Door warping |
The door is warped, does not fit tightly, and gaps appear. |
If you followed all the manufacturer's recommendations before installation, then it was most likely used incorrectly afterwards, for example, in a room with high humidity. If the door is severely warped, it must be replaced. |
How To Install an Interior Door?
Belldinni Installation Guide
Our experts have compiled a detailed step-by-step guide and video tutorial, which you can check out here. To delegate this task to professionals who install the door unit quickly and without flaws, please visit doors-install.com.
DOWNLOAD PDF
HARDWARE FOR INTERIOR DOORS
Any door hardware from our range is not just high-quality; it's a statement of style. It can elegantly complement your door model or become a striking accent in your room. Choose the handles and hinges that best match the living space. Remember, the little things make all the difference in your interior, and we're here to ensure you make the right, confident choice.
FAQ
Below are answers to the most frequently asked questions.
Where to buy interior doors?
You can order directly on our website or visit our branded showroom located in Paramus and Pennsauken. If you have any questions regarding the Door Design Lab product range , please feel free to contact our call center, where our experts will help you find the perfect solution.
What is the standard door size?
The most popular size for interior doors is 30 × 80". You can find all the information about the Belldinni door dimensions in our article.
Solid core or hollow core?
While hollow core doors are considered a cheaper option, the quality eco-friendly material solid core with 12.5 lb/ft³ density creates a comfortable microclimate in the house or apartment. It is responsible for soundproofing and keeping heat inside the room.
What are the internal door trends in 2025?
Trends for 2025 are a mix of practicality, ergonomics, beauty, and quality. For example, invisible doors and sliding opening systems are currently popular. Please read more about 10 stylish door ideas in our article.
What is the best material for an interior door?
The most practical and durable are wooden interior doors coated with enamel or polypropylene. These materials reliably protect the canvas from moisture, scratches, and loss of color. Choose veneered doors if you want to add a touch of nature to your living space.
How to maintain a door
Our doors are finished with a high-quality coating that requires no special care. When cleaning, simply wipe them with a damp cloth, avoiding the use of aggressive agents. All tips for cleaning wooden interior doors are collected in our guide.
How to determine the right or left-hand door?
Regardless of the inward or outward direction, right-hand doors open to the right, and left-hand doors open to the left. Read about the other nuances in the article from our experts.
How to measure a door?
To determine the required size of the door block, measure the width and height of the rough opening in three places (in the middle and at the edges) and select the smallest values. The necessary tools and the complete algorithm are described in our guide.
