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Should you choose sliding doors or French doors?

Updated 19 September 2026 · Project preparation

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Choose garden doors around how you use the transition between house and garden. Compare clear opening width, movement space, operation and connection details. The largest glazed surface is not automatically the most comfortable everyday arrangement.

How will the room work when the doors are open?

Hinged doors occupy space when open. Draw their swing alongside the dining table, planters and terrace. Sliding panels behave differently, but the proportion of fixed and moving sections determines the usable opening. Do not rely only on a closed elevation drawing.

Consider carrying shopping, garden furniture or a pushchair through the doorway. Handle position and operation from inside and outside can also affect preference without changing the overall frame width. Mark furniture near the opening so the comparison reflects daily use rather than an empty room.

How should the threshold junction be developed?

The junction between internal floor, threshold and terrace deserves its own drawing. Internal and external levels, drainage and material build-ups must work together. A photograph of a visually level transition does not reveal its drainage arrangement.

Describe the intended use and have the technical possibilities assessed. Put agreed heights on the drawing so flooring and landscaping are not designed independently from the doors. This makes the threshold a considered connection rather than a late detail discovered when the frame arrives for installation.

What do maintenance and everyday operation involve?

Consider access for cleaning glass and frames and how moving parts operate. Request maintenance information for the actual selected product. A large glazed panel may feel different from a smaller door even where their drawings suggest similar access.

Assess examples with the type of operation you intend to order. Include shading, ventilation and privacy in the conversation too. These may affect profiles and dimensions, so they should be considered before the final order rather than added after the opening has been constructed.

What belongs in the complete door assembly?

The quotation should identify fixed and opening sections, glazing and the internal and external finishes provided. Record colour, operation and relevant junctions. Check that dimensions relate to the final structural proposal. A revised opening can change the required frame size.

Compare performance using information for the complete selected unit. General statements about glass or frame materials do not automatically describe the performance of the assembled element in your extension. Keep the approved specification with the drawing used for the supplier’s final measurements.

Frequently asked questions

Do sliding doors always provide a wider opening?

Not necessarily. The proportion of fixed and sliding panels determines clear access. Compare the actual opening of the proposed configuration rather than the overall external width of the frame.

Can the terrace connection be completely level?

That requires assessment of floor levels, the threshold detail and drainage. Explain the intended use early so the junction can be designed. A photograph of another property cannot establish feasibility for yours.

When should the door assembly be ordered?

Once dimensions, structure, glazing and connection details are sufficiently settled for the supplier. Ordering too early may constrain the design while important information is still provisional or awaiting assessment.

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