Internal Steel Doors & Partitions
Elegant, Durable & Custom-Made for Modern Irish Interiors
At Colin’s Sash Windows, we supply made-to-measure steel doors and partitions across Ireland, delivering quality that meets both design and performance expectations. Whether you’re a homeowner looking to modernise your home, an architect designing a project, or a builder sourcing for clients, our internal steel doors are engineered to bring strength, beauty, and flexibility to any setting.
- 10-Year Guarantee on Frames & Finish
- Nationwide Delivery Across Ireland
- Bespoke Sizing & Design Options
- Made-to-Measure for Homes, Offices & Commercial Spaces
Fill out the form on right and get a quick quote now 👉
Contact Us Today
We are happy to help. Anytime.
Our Collection of
Internal Steel Doors & Partitions
Every project is unique, which is why we provide a wide choice of styles to match your interior layout.
Our steel doors are versatile enough for both period properties and ultra-modern designs.
Hinged Single Steel Door
Prices starting from only €1,736 + VAT Available in a range of RAL colours and different options.
A classic option for hallways, studies, or living spaces. These single hinged steel internal doors create a simple yet bold statement, perfect for smaller openings.
Hinged Double Steel Doors
For wider openings, double steel doors provide balance and symmetry. They’re often used between dining rooms and living rooms, or to frame an entrance into a bright open-plan kitchen.
Sliding Steel Doors (Single & Double)
Prices starting from only €1,771 + VAT Available in a range of RAL colours and different options.
Sliding doors are ideal for saving space while keeping the sleek industrial style. Choose from single sliders for narrower areas or double sliders for larger entrances.
Internal Steel Bifold Doors
Internal steel and glass bifold doors bring a sleek, contemporary edge to interiors while maximizing space and light. Their slim steel frames and large glazed panels create an open, airy feel, allowing natural light to flow between rooms without compromising on separation. The folding design is perfect for saving space in smaller areas or creating flexible layouts, giving the option to fully open up or close off a room as needed. Durable, stylish, and highly versatile, these doors complement both modern and industrial-style homes while adding a touch of architectural elegance.
Fixed Steel Glass Partitions
Steel-framed partitions divide rooms without sacrificing natural light. Perfect for offices, loft apartments, or homes where you want separation without a closed-off feeling.
Pocket Sliding Systems
For a completely seamless finish, sliding steel doors can be built into wall pockets, making them almost invisible when open.
📍 Delivery All Over Ireland
Example Prices for Internal Steel Doors
Sliding Doors
| Product | Size (W × H) | Price (ex. VAT) |
|---|---|---|
| Double Sliding Door | 1800mm × 2100mm | €2,806 |
| Single Sliding Door | 900mm × 2100mm | €1,771 |
Hinged Doors
| Product | Size (W × H) | Price (ex. VAT) |
|---|---|---|
| French Doors | 1800mm × 2100mm | €2,656 |
| French Doors with Side Panels | 2800mm × 2100mm | €3,749 |
| Single Door | 900mm × 2100mm | €1,736 |
| Single Door with Side Panel | 1400mm × 2100mm | €2,035 |
For bespoke options please contact our team and get a free quote right away.
Wide Range of
Design & Customisation Options
Frame Colour / Finish Options
Standard: Black (RAL 9005 matt) – timeless, minimal, and suits every interior.
Special RAL Available in Stock are white, anthracite grey and anthracite grey on white.
Bespoke options: Any RAL colour on request for a personalised finish.
If you have any customise requirement for frame colour then please contact our team today to get a price and availablity.
Obscured Glass Designs
To view all designs please checkout our glazing options using button on right.
Available Options For
Glazing
When choosing your internal steel doors, the glass you select can transform both the look and function of your space. We offer a range of glazing options designed to balance light, style, and privacy – giving you full control over how your interiors feel.
Clear Glass – Ideal for creating bright, open spaces. Clear glazing maximises natural light flow between rooms, making it perfect for kitchens, dining areas, and living spaces where brightness and visibility are key.
Multi-Pane / Grid Glazing – For those who love the timeless industrial style, multi-pane glazing adds character and depth. The grid design not only enhances aesthetics but also works beautifully in lofts, offices, and contemporary homes.
Obscure or Patterned Glass – Where privacy matters, such as in bathrooms, bedrooms, or office partitions, obscure or patterned glazing provides seclusion without sacrificing style. It diffuses light gently while ensuring personal spaces remain private.
No matter which option you choose, all glazing is toughened for safety and durability, ensuring your steel doors remain secure, long-lasting, and visually stunning.
Hardware Choices
The right hardware completes the look and feel of your internal steel doors. We offer durable, stylish options tailored to both hinged and sliding designs.
Internal Steel Hinged Doors
Mortice Latch Handle – Classic and reliable.
Trim Handle – Sleek and minimal.
Pull Handle – Strong and industrial.
Internal Steel Sliding Doors
Trim Handle – Slim and discreet.
Pocket Handle – Space-saving for recessed systems.
Pull Handle – Practical with a bold look.
Each option is available in finishes to match your chosen colour scheme, giving your steel doors a seamless finish.
For Hinged Units
For Sliding Units
Steel Internal Doors
Add-ons & Extras
Every detail is bespoke and made-to-measure, ensuring a perfect fit and finish for your project.
Performance Values
Our internal steel doors are designed with everyday use in mind, combining style with practical performance. While they are not fire-rated, they still meet important Irish and European standards for durability, acoustic comfort, and sustainability.
Strength & Durability
Manufactured in accordance with EN 1192, our hinged and sliding steel doors are built to withstand frequent daily use without warping, twisting, or losing stability.
Highest Quality
Produced under ISO 9001 quality management systems, ensuring consistency, reliability, and eco-conscious manufacturing.
Acoustic Control
When paired with quality glazing and seals, internal steel doors can provide effective sound reduction, helping create quieter, more private interiors in line with ISO 10140 standards.
Finish & Longevity
Powder-coated finishes resist scratches and wear, making the doors easy to maintain while retaining their sleek modern look for years.
Our Best Selling
Steel Internal Doors
Check our trending products for internal steel doors online, we have the range of bespoke RAL colors. You can select from the following and customise it according to your requirements.
Our Gallery
Get Inspried
We’ve supplied our steel internal doors to homes and real estate developers across Ireland. See our gallery to explore recent deliveries, finishes and real installations from our happy trade customers.
Why Choose
Internal Steel Doors?
Slim Profiles, Maximum Light
Strength That Lasts
Low Maintenance
Timeless Design Appeal
How to Measure for
Internal Steel Doors?
01.
Measure Width & Height
Take measurements in three places (top, middle, bottom for width; left, centre, right for height). Use the smallest measurement.
02.
Check Depth
Measure the wall thickness or reveal depth
03.
Decide Door Type
Single, double, sliding, or partition
04.
Add Allowance
Leave approx. 10 mm fitting tolerance.
05.
Pocket Systems
For sliding doors into wall pockets, check the wall cavity is suitable.
💡 Not sure? Contact our team for guidance—we’re happy to help you measure correctly.
We deliver all across Ireland including
Dublin
Cork
Limerick
Galway
Waterford
Kilkenny
Sligo
Drogheda
We don't fit or install in Ireland
Lead Times & Delivery in Ireland
Our internal steel doors are carefully manufactured and finished to the highest standards. Lead times depend on the finish you choose.
Standard Black (RAL 9005) from 6 weeks.
Bespoke RAL Colours from 8 weeks.
🚚 Delivery: Nationwide delivery across Ireland with the same lead times for all counties.
Frequently Asked Questions
We currently supply only. We deliver nationwide across Ireland, and your builder or installer can fit the doors easily with our technical guidance.
Standard internal steel doors are not fire-rated. If you need fire protection, see our dedicated FD30 Fire-Rated Steel Doors page.
We offer clear glass, multi-pane layouts, and obscure glass for privacy. Safety glass is supplied as standard.
Yes—every door is made-to-measure to fit your opening exactly.
Every steel door and partition comes with a 10-year guarantee on frame and finish.
Simply use our online door designer tool or contact us directly for a quotation.
In addition to our internal steel doors, we also supply Timber Sash Windows, Ecoslide uPVC Sash Windows, and Internal Fire-Rated Steel Doors, all delivered nationwide across Ireland.
