Design & Supply: specialist manufacturers of steel and slimline doors for every application

With more than 36 years’ experience in the UK door industry, Design & Supply manufactures, supplies and installs a complete portfolio of security‑rated steel doors, fire‑rated doors, flood defence doors, acoustic doors and slimline architectural glazing. Our steel range includes LPS1175 SR1–SR4 security doorsets, CE‑marked fire doors tested to FD30–FD240 ratings, and flood‑resistant doors with watertight performance. We also provide stock personnel doors and streamlined steel doors for quicker lead times.

For architectural projects that demand slim profiles without compromising safety, we offer Schüco and Jansen slimline doors with optional glazing, security certification and fire resistance. 

All of our products can be customised with hundreds of RAL and BS colour powder‑coat finishes, a wide choice of manual or electronic locking systems, louvre panels, glazing options and removable transoms.

Our end‑to‑end service covers site survey, CAD design, fabrication, powder coating and nationwide installation by accredited fitters. Each doorset is backed by a manufacturer’s warranty and built to meet LPCB, EN 1634‑1 and BS 476-22 standards depending on door type.

Whether you need secure steel doors for a cash room, fire‑rated exit doors for a school, flood doors for a utilities substation or acoustic doors for a studio, our team can design a bespoke solution. Get in touch for a free quote and discover why businesses across the UK choose Design & Supply for industrial doors that deliver protection, performance and peace of mind.