Minima Sliding is delighted to announce a new range of internal glazed doors launching at this year’s Grand Designs Live. A sister company to Minima Sliding – the UK’s leading slimline sliding door supplier – Minima Interior offers black Crittall-style doors made from lightweight, but highly durable, aluminium.

“Our customers know us for our award-winning, Ultraline sliding door system, so it felt like a natural next step to offer them a complementary range of high end interior glazed doors,” says Dan Smith, Minima’s Operations Director. “Minima Interior provides custom-made, industrial-style black internal doors and glass partitions at a fraction of the price of steel alternatives.”

New product launch

Showcasing some of the new range at Grand Designs Live, which runs from 29 April to 7 May at London’s ExCeL, Minima Interior will be exhibiting alongside Minima Sliding at stand C54. The black-framed doors are available as singles, doubles or fixed partitions, and come in a choice of clear, reeded or frosted glass.

“We’re really excited to be launching the new Minima Interior door range at Grand Designs Live, a show we’ve been exhibiting at for more than a decade,” says Dan Smith. “It means our customers now have the option of buying both their external and internal doors from one single, trusted company. And, more importantly, the product itself is exceptional.”

black metal internal double doors

Exceptional quality internal doors

“We’ve put our internal doors through the same rigorous testing as our external sliding doors, to ensure they are extremely robust,” says Dan Smith. “Before we were prepared to put our name to these new products, we had to make sure they represent exceptional quality because that is what our customers expect from a Minima product.”

The same levels of expertise and customer service associated with Minima Sliding will also accompany Minima Interior products. A full site survey and installation service is on offer; the doors are also available on a supply only basis.

Combining great value with timeless design

Despite the high end feel and timeless design of Minima Interior’s industrial-style black doors, the price point is much more affordable than traditional steel alternatives.

“The price of our doors is a real game changer,” says Dan Smith. “There was a time when you’d only see Crittall-style steel internal doors in super prime London residences. That’s because 95% of people can’t afford them. But our doors are revolutionary because they cost around a third of the price of steel doors while achieving a very similar look.

Black metal double doors - Crittall Style

Keys points:

  • Minima Interior, a sister company to Minima Sliding, launches at Grand Designs Live 2023 providing a new Crittall-style range of made-to-measure black aluminium internal doors and glass partitions.
  • Minima Interior doors are custom-made and can accommodate a door height of up to 2.4 metres.
  • Minima Interior doors are a stylish and affordable alternative to Crittall-style internal steel doors.
  • Minima Interior door frames are made from lightweight aluminium in RAL9005 Jet Black Matt.

To order your internal aluminium doors from Minima Interior, visit, call 01622 902 095, or email