Design & Supply

Design & Supply Industry leading manufacturer and supplier of Industrial Doors and Architectural Glazed Products.

Design and Supply are specialist manufacturers and suppliers of Industrial Steel Doors and Architectural Products. We have been manufacturing and installing all these products since 1986. We can offer a varied range of quality products at competitive prices. We have over 30 years experience within this industry and can offer the full package, right through from planning, site surveys, design, prod

uction, assembly, powder coat finish, to delivery. We look upon our customer's problem as our problem, and will endeavour to solve that problem and produce any product of any gauge of material to the highest specification. As specialists in manufacturing steel door sets and architectural products, we have over 20 years of experience to call upon. In this time, we have captured the whole market, from exports to the middle east, worldwide contractors, local councils, schools, right down to the smaller end user.

How much security does your project need?For higher-risk applications, an SR3-rated doorset may be required to help prot...
04/06/2026

How much security does your project need?

For higher-risk applications, an SR3-rated doorset may be required to help protect critical assets, infrastructure, equipment, or restricted areas.

The doors shown here were manufactured to achieve SR3 security performance, having been independently tested (to LPS 1175) against a determined attack using a range of tools and methods.

The key is specifying the right level of protection from the outset.

That's why understanding the intended use of the building is just as important as understanding the security rating itself.

Not sure whether SR2, SR3 or SR4 is required? We're happy to discuss your project requirements and help guide the specification: https://designandsupply.co.uk/contact/

What’s the difference between Sa3 and Sa4 smoke control doors?It comes down to how the doorset is tested for smoke leaka...
02/06/2026

What’s the difference between Sa3 and Sa4 smoke control doors?

It comes down to how the doorset is tested for smoke leakage.

Sa3 smoke control doors are tested with seals on three sides:
✔ Head
✔ Left jamb
✔ Right jamb

Sa4 smoke control doors are tested with seals on all four sides, including the threshold:
✔ Head
✔ Left jamb
✔ Right jamb
✔ Threshold

That additional threshold sealing can be an important consideration where limiting smoke movement is a key part of the building's fire strategy.

The doorset shown here achieves Sa4 smoke control performance alongside fire resistance tested to EN 1634-1, helping to support both compartmentation and means of escape requirements.

As of today, all new quotations for our Thermal Fire Protect doors fitted with smoke seals will be supplied with a smoke classification as standard. This helps ensure fire and smoke performance are considered together during specification, with the exception of louvred doors where smoke classification is not applicable.

If you're reviewing fire door specifications and aren't sure whether Sa3 or Sa4 is required, our team can help.

https://designandsupply.co.uk/contact/

28/05/2026

Janisol 2 EI30, from our Slimline division, is a practical solution for projects where compliance, usability, and architectural appearance all need to work together.

The system is suitable for:
– Glazed fire doors
– Fixed screens & partitions
– Commercial & public buildings
– Healthcare and high-traffic environments

Available options include:
✔ Slim steel profiles for increased glazing areas
✔ Single & double door configurations
✔ Smoke control and acoustic performance
✔ Security-rated configurations
✔ Stainless steel options for specialist environments

Get in touch to discuss your project requirements: https://designandsupply.co.uk/contact/

Does your project require both performance and architectural aesthetics?We manufacture bespoke steel doors tailored to t...
26/05/2026

Does your project require both performance and architectural aesthetics?

We manufacture bespoke steel doors tailored to the specific requirements of each project.

Options include:

✔ Decorative panel designs
✔ Security ratings up to SR4
✔ Fire-rated configurations to EN 1634-1
✔ Smoke control options
✔ Thermal performance as low as 1.3 W/m²K

The result is a certified doorset designed to meet the functional requirements of the project while still complementing the overall building aesthetic.

If your project requires something beyond a standard steel door, our team are happy to help: https://designandsupply.co.uk/contact/

21/05/2026

Car parks are tough environments. Constant daily use, exposure to the elements, and the risk of vandalism all place huge demands on doorsets

For the Ebbw Vale Multi-Storey Car Park, Design & Supply worked with Blaenau Gwent County Borough Council to supply and install 10 anti-vandalism steel doors designed specifically for high-traffic environments.

The project included:
✔ Fire-rated steel doors
✔ Anti-vandal doorsets
✔ Security grilles

Suitable for:
- Multi-storey car parks
- Underground car parks
- Stairwells & escape routes

A practical, heavy-duty solution built for long-term performance in demanding environments.

Read the full case study: https://designandsupply.co.uk/case_studies/ebbw-vale-multi-storey-car-park-security-upgrade/

Tight project deadlines?We offer a range of stock steel doors available for a quick turnaround when project deadlines ar...
19/05/2026

Tight project deadlines?

We offer a range of stock steel doors available for a quick turnaround when project deadlines are tight.

Manufactured from durable steel construction, our stock doors are available in a range of standard sizes and configurations for internal and external applications.

✔ Quick lead times
✔ UK manufactured
✔ Suitable for internal & external use
✔ Grommets and brick fixings included as standard
✔ Adjustable frame capping system available for adapting stock sizes to suit bespoke openings
✔ Weather canopy available on request

A practical solution when you need reliable steel doors, fast.

Discover our stock doors: https://designandsupply.co.uk/general-purpose/

Slimline glazing or steel doors?While both can offer fire, security, and thermal performance, the right solution often c...
14/05/2026

Slimline glazing or steel doors?

While both can offer fire, security, and thermal performance, the right solution often comes down to the application, environment, and overall design intent.

Our Slimline division is typically specified where:

✔ Minimal sightline interruption is required
✔ Glazing and natural light are prioritised
✔ Architectural detailing is key

Whereas our steel doorsets are often chosen for:

✔ High-use or demanding environments
✔ Plant rooms and service areas
✔ Heavy-duty fire, security, thermal or flood performance

At Design & Supply, we manufacture both in-house - helping architects and specifiers select the right solution for each part of a project.

Need support with specification? Our team is happy to help: https://designandsupply.co.uk/contact/

When are louvres needed?Louvres are typically used where ventilation is needed, while still maintaining the function of ...
12/05/2026

When are louvres needed?

Louvres are typically used where ventilation is needed, while still maintaining the function of the doorset. You’ll commonly see them specified for:

– Plant rooms
– Boiler & generator rooms
– Electrical rooms
– Car parks and ventilation areas

But it’s not just about adding airflow. You also need to consider things like:

✔ Security performance (such as SR2)
✔ Ambient temperature control
✔ The environment the door is being used in
✔ Protection against insects and debris

That’s why our louvred doors are supplied with fly mesh as standard.

If you’re unsure what’s required, our team can help advise on the right solution for your project: https://designandsupply.co.uk/contact/

Fire-rated glazing, refined through our Slimline division.At Design & Supply, our Slimline division focuses on steel gla...
07/05/2026

Fire-rated glazing, refined through our Slimline division.

At Design & Supply, our Slimline division focuses on steel glazing systems where performance and design go hand in hand.

Forster Presto EI30 is a clear example - a fire-rated solution designed for projects where durability, simplicity, and clean detailing matter.

Suitable for flush single and double doors, windows, and glazed screens, it delivers consistent EI30 performance in high-use environments.

Where it works:
– Flush single & double doors
– Windows and glazed screens

Key features:
✔ Slim, flush steel profiles
✔ Built for long-term durability
✔ Stainless steel option for a refined architectural finish

A practical Slimline solution where fire performance and design need to align.

Get specification support: https://designandsupply.co.uk/contact/

Our steel security doors are independently tested and certified by the LPCB to LPS 1175 SR1–SR4 levels, proving performa...
05/05/2026

Our steel security doors are independently tested and certified by the LPCB to LPS 1175 SR1–SR4 levels, proving performance under real attack conditions.

This means:

✔ Resistance to sustained attack using defined tools
✔ Protection against opportunistic and more determined intrusion
✔ Tested using real-world methods, not just theory

All doors are also Secured by Design accredited, supporting recognised standards in crime prevention.

Contact our team about security-rated doors for your next project: https://designandsupply.co.uk/contact/

Address

13 Pant Road, Dowlais
Pant
CF482SR

Website

Alerts

Be the first to know and let us send you an email when Design & Supply posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Shortcuts

Share

Category