Hinged Doors
Example sizes shown for guidance.
Configuration
Price (ex VAT)
Single door (900 × 2100)
£1,510
Single door + side panel (1400 × 2100)
£1,770
French doors (1800 × 2100)
£2,310
French doors + side panels (2800 × 2100)
£3,260
Steel Door Online specialises exclusively in internal steel doors, steel framed internal doors with glass, and steel partitions for residential and commercial interiors throughout the UK.
We design, manufacture, supply, and install made-to-measure steel interior doors that combine ultra-slim steel profiles, high-quality glazing, and long-term durability. Our systems are engineered to divide spaces without blocking light, making them ideal for modern homes, apartments, offices, and architectural projects.
Whether you are searching for steel internal doors, internal steel sliding doors, black steel internal doors, or steel and glass internal doors, this page is the central hub for all designs, specifications, pricing guidance, and ordering information.
Internal steel doors are steel framed doors designed for interior use, often paired with glass panels to allow light to flow between rooms while maintaining separation.
They have become one of the most in-demand interior features in the UK because they offer:
✔ Slim, architectural sightlines.
✔ Excellent durability compared to timber.
✔ Flexibility in layout and configuration.
✔ A balance of openness and privacy.
✔ A premium look suitable for both modern and heritage interiors.
Our steel framed internal doors are crafted using cold-rolled steel and are designed to be visually light yet structurally strong.
We offer a full range of internal steel door systems, we have enlisted all of them below and to learn more about each simply click
and the detailed information will open.
Ideal for kitchens, studies, hallways, and smaller openings. Single doors can be supplied with or without fixed glazed side panels.
Perfect for wider openings and statement transitions between rooms. Double doors can also be combined with fixed side screens.
Designed for spaces where swing clearance is limited. Sliding doors can run over fixed panels or be fully recessed.
Pocket steel doors slide neatly into the wall cavity, offering the cleanest visual finish while saving space.
A symmetrical double-door layout that blends classic proportions with modern steel framing.
Fixed steel screens and partitions divide open-plan spaces without blocking light, commonly used in living areas and offices.
As you have seen above with the range of internal steel framed doors system we also offer the range of external steel doors, FD30 fire rated steel doors and fixed side panels in variety of hardware configurations and colours.
Many customers choose steel and glass internal doors because they allow
natural light to travel through the home while clearly defining spaces.
Our doors use some of the slimmest steel profiles available in the UK, including:
These refined proportions create a clean, minimalist appearance without compromising strength.
If you want to know more about the frame dimensions profile thickness and powdered coating we used then you can talk to our expert with just one call.
All steel frame internal doors are supplied single glazed as standard, with upgrade options available:
If you want to know more about the glass options we used then you can talk to our expert with just one call.
Black steel internal doors remain the most popular choice, with the majority of orders supplied in Black RAL 9005 Matt.
However, we can manufacture and supply bespoke steel doors in:
All finishes are professionally applied for durability, consistency, and long-term appearance.
Some buyers consider steel look internal doors, often made from aluminium, as an alternative. While steel-look systems can replicate the appearance, real steel doors offer:
If you are comparing aluminium steel look internal doors with genuine steel, our team can explain the differences clearly.
Pricing guidance
People searching for steel framed internal doors prices or internal steel doors cost are usually ready to move forward but want clarity.
Example sizes shown for guidance.
Includes single and double sliding examples.
Need a tailored quote? Share your opening sizes and preferred glass/finish.
Request a QuoteAt Steel Door Online we offer the two clear options of supply only
and fit on our all steel doors range with nationwide coverage
across United Kingdom.
Supply only
Idea if you have your own installer or builder.
Supply and Fit
Installed via our network of Fensa Approved installers.
We operate across the United Kingdom, working with FENSA-approved installers. Some postcode exclusions apply and are confirmed at quotation stage.
We make every steel door to measure because perfection lives in the details.
The result is a door that doesn’t just fit your opening, it looks as though the
wall was built around it.
Applies to:
How to Order From us?
It is simple you just need to submit the form at the end of this page with your details and our team will handle the rest. Further, our process is below.
Note: All products are drawing-based. We do not carry out site surveys, which allows faster processing and nationwide coverage.
Steel Door Online is a specialist division of Colin’s Sash Windows, created to focus exclusively on slimline steel doors uk and steel partition systems.
Colin’s Sash Windows has been supplying premium window and door products in the UK since 2014, with extensive experience in bespoke glazing solutions. Steel Door Online benefits from this established manufacturing knowledge, customer support infrastructure, and industry expertise, while operating as a dedicated brand for steel interiors.
This structure allows us to offer specialist advice without compromising the reputation or scope of the parent company.
Why choose us
A specialist approach, measured engineering, and a calm buying experience — designed for people who care about details.
Trading since
2014
Backed by an established UK business
Warranty
10 years
Confidence built into every door
Made in
UK
Manufactured in UK factories
Installation
FENSA
Approved installation partners
We focus exclusively on internal steel doors and partitions — a dedicated brand built to deliver precision, not a broad catalogue.
Architectural sightlines designed to maximise glass and light while maintaining a refined steel structure.
Manufactured in UK factories with controlled processes, consistent finishing, and dependable lead times.
Optional upgrades for better sound reduction and enhanced security — ideal for home offices and busy households.
Supply & fit across the UK through experienced, FENSA-approved installation partners.
Clear example pricing and honest specification guidance, so you can make a confident decision without guesswork.
Every internal steel door is supplied with a 10-year warranty for long-term confidence and peace of mind.
Steel Door Online is a specialist division supported by an established UK business trading since 2014 — giving you reliable support before, during and after your project.
You can download our internal steel doors and fire rated steel doors brouchure below, and to visit complete downloable resources of steel door online you can click on “View all downloads” button.
In the following section we have already answered the common questions you might have in your mind.
And with that there is a simple enquiry form which you can submit without any cost. And you will get an
instant quote right to you inbox.
Share your opening sizes and preferred configurations. We'll respond with a tailored quote.
By submitting, you agree we can contact you about your enquiry. We never sell your details.
Tap a question to view the answer.
Yes. All internal steel doors are made to measure.
Yes. All doors can be supplied with clear, reeded, opaque, acoustic, or laminated glass.
Yes. We offer both supply only and supply & fit across the UK.
Approximately 8 weeks for all systems and colours.
All internal steel doors are supplied with a 10-year warranty.
Prefer to speak to our specialists? We're happy to help
CALL
01525 552131
Website
steeldooronline.co.uk
* Some postcode exclusion apply and are confirmed at quotation stage.
