Grand Line – Double Sliding Glass Doors with Two Side Panels – internal steel and glass door, photo 2
  • Made to measureSteel frames built for your opening
  • Surveyed and fittedInside the M25 and 20 miles beyond
  • 2-year product guaranteePlus a snagging visit after fitting

Crittall-style steel glass door

Grand Line – Double Sliding Glass Doors with Two Side Panels

From £7,291 + VAT £8,749 inc VAT, supplied and delivered. Installation quoted after the survey

Design your door below for a guide price, then book a survey. Your final price is confirmed after we measure.

1Your opening

Measure the whole opening, wall to wall and floor to the top of the opening. We work out the door – and any side panels or top light it needs – from these sizes, and check them at the survey before anything is made.

Your door

Guide price, supplied and delivered –

Made to order: usually 8–10 weeks after measuring. We reply within one working day.

Send your door design

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Your options explained

Every door is built to your opening. Your drawing above updates as you choose; the guides below show every option side by side.

See all options – door types, glass, bars, colours and hardware
Single hingedone leaf on hingesDouble hingedFrench doors, open from the centrePivotturns on a pivot, swings both waysSingle slidingslides along a track on the wallDouble slidingtwo leaves part to each sideTelescopic sliding3+ panels stack behind each otherBi-foldpanels fold back to one sidesidesidetop lightSide panels and top lightfixed glass around any doorClearfully transparentFrostedsandblasted, smoothReededfine vertical ribsFlutedwider vertical flutesCathedralhammered textureGrey tintsmoked greyBronze tintsmoked bronzeWiredclear with wire gridClear panelno barsOne barCrittall lineTwo barsthree panesThree barsfour panesFour barsfive panesGridGeorgian / industrialOffsetasymmetric barsInner framebespoke panel designBlackRAL 9005AnthraciteRAL 7016GreyRAL 7039WhiteRAL 9016BronzemetallicChampagne goldmetallicOlive greenRAL 6003Navy blueRAL 5011Any RAL colour or a match to your existing colour. Steel frames in a smooth or textured finish. Colours shown are a guide only.Lever handleon a lock box, closes on a latchPull handlewelded bar, closes on magnetsLockkey lock in the lock box, brass shownWelded hingestwo or three per doorSliding trackface-fixed rail with rollerstop pivotfloor pivotPivottop and floor pivot, both ways

About this door

Grand Line – Double Sliding Glass Doors with Two Side Panels

Modern Grid Style for Expansive Interiors

The Grand Line – Double Sliding Glass Doors with Two Side Panels is designed to make a bold architectural statement in modern interiors. Crafted from 8mm toughened safety glass and encased in a premium metal frame, this system combines strength, elegance, and industrial-inspired style on a grand scale.

The double sliding doors provide smooth, space-saving functionality, while the two full-height side panels extend the design across wider openings, creating a striking partition that maximizes natural light. The black grid framework delivers a contemporary loft-style aesthetic, making Grand Line the perfect choice for open-plan living areas, loft apartments, and office environments.

Available in clear or frosted finishes, Grand Line offers a versatile solution that balances privacy, openness, and design sophistication for both residential and commercial spaces.

How it works

  1. Design and bookBuild your door above and book a survey, or send it to us as an enquiry.
  2. SurveyWe measure and template the opening, then send your final price with installation.
  3. Made to measureYour steel door is made to your exact sizes, usually in 8–10 weeks.
  4. InstallationFitted by our team, usually within a day, and left clean. Outside our fitting area we deliver your door ready for your fitter.

Questions

What is the difference between sliding and telescopic doors?

A sliding door moves along a track to one side. A telescopic set has three panels – two sliding panels that stack behind a fixed one – so it opens up a wide opening without needing much wall space. The sliding gear always comes with it.

What is the difference between frosted, reeded and fluted glass?

Frosted glass is sandblasted for a smooth, even, obscured finish. Reeded and fluted glass have vertical ribs that blur the view but let more light through; fluted ribs are wider.

Do you fit outside London?

We survey and fit inside the M25 and up to 20 miles beyond. Elsewhere we make your door to measure and deliver it, ready for your fitter.

Why is the price a guide?

Every opening is different. We confirm the exact sizes at the survey, then send your final price before anything is made. Installation is priced after the survey.

Can I have a fire-rated door?

Yes. Fire-rated (FD30) steel glass doors are available in three frame options. Tick the fire-rated box in the designer and we'll price your door individually at the survey.

What guarantee and aftercare do I get?

Every door comes with a 2-year product guarantee, on top of your statutory rights. When we install your door, we walk through it with you before we leave. Steel doors can settle slightly in the first weeks as they take their weight. If a door needs adjusting, for example it starts to catch the floor or doesn't close cleanly, we come back for a snagging visit and adjust it.