Fully-finished and plain internal doors ready to install
The extensive choice of colours and styles makes it easy to find the right type for your home. No matter your design aesthetics, you’ll be abe to choose from a range of sizes from standard to wide doors. White doors are an excellent choice in small homes, as they create the illusion of light and really open up a room. Looking for a modern colour? A grey door adds a contemporary design to any space. You can also find un-finished internal doors to decorate yourself.
Preventing the spread of fire is important, which is where our range of FD60 fire doors come in. These single internal doors are fire-rated and offer up to 60 minutes of protection from fire. This gives you and your family ample time to evacuate the property in an emergency.
Some of our most popular doors include our oak door range. These give you a classic look and a sturdy door to keep out the cold. The extensive glazed range is ideal for homes struggling to bring in natural light. The glazed glass doors give privacy while still allowing natural light in.
Shop the internal door collection with fast delivery
Here at Door Supplies Online, we are passionate about quality. This is why we stock the best brands in interior doors. Choose from Deanta, JB Kind, LPD internal doors and XL Joinery interior doors to name a few.
We are upfront about our pricing. All of the prices listed include VAT so there are no hidden costs. What you see is what you pay for your product. Prices start from less than £40 so you can buy the interior door of your dreams today.
Need your door sooner? We offer fast delivery across the UK mainland. We aim to deliver all in-stock items within 3-5 working days. Got more questions about your dream interior doors? Contact Door Supplies Online to discuss your needs.
Internal Doors FAQs
The prices of internal doors vary depending on the material, design, and manufacturer. Here at Door Supplies Online, prices start from less than £40 and reach just under £900 for an LPD fire door. We also stock pairs and room dividers with prices between £280 and £1,500.
An unfinished door allows you to decorate your home as you see fit. If you are looking to paint your door, opt for a gloss or semi-gloss paint. This is practical and hardwearing, meaning that they can withstand accidental knocks. They are also easier to clean.
The most common internal door size in the UK is 6 feet 6 inches high by 2 feet 6 inches wide. The precise metric measurements of these doors are 1,981mm high x 762mm wide x 35mm thick. These sizes date back to the days when imperial, rather than metric, measurements were standard and are what’s found in the vast majority of domestic and commercial buildings.
All the measurements you’ll see quoted on our site are for the inside of the door frame. To be sure that you’re buying the right size, take measurements of the width at the top, middle and bottom of the door, and use the widest of these measurements as the door width you require. Do the same for the door height. Measure inside the vertical side of the frame and use the longest length to get the height required.
Interior doors tend to open inwards, because if they were fitted to be outward opening, they are likely to encroach on a hallway or other kind of common area of some kind. So there’s a risk that doors that open onto these areas might knock into anyone walking by.