OC Slimline
Standard & premium RAL colours
What is included in the door price, what counts as premium, and how to read powder-coated steel next to a colour chart.
Standard range
Colours included in every door
A selection of our most popular shades — included in the price of every door. These colours offer a timeless foundation for any space and are readily available in multiple finish options.
The shades below match our current OC Slimline catalogue standard palette. Your frame is powder coated in the RAL you select from this list at no extra colour charge (subject to availability of powder in that RAL).
Beyond the catalogue
Premium and bespoke colours
For more individualised projects, we offer a broader palette of non-standard colours. These are priced individually and may include less common tones, deep pigments, or custom-matched requests.
If your interior scheme needs an unusual RAL, a deep pigment, or a custom match to joinery or metalwork elsewhere on site, we quote those finishes individually after the specification is clear.
Accuracy
The colours presented in our catalogue and on screen are for reference only and are not an exact match. Powder-coated finishes on steel frames may differ in appearance because of surface texture, coating process, and lighting. Finishes are based on the RAL and IGP colour systems — for an accurate assessment, use official RAL or IGP colour charts or physical samples of the actual powder-coated finish.
Finishes follow the RAL and IGP colour systems. For industrial-style projects, see Industrial style & the steel door.