What size should I choose for a sliding door?

For an interior sliding door, the 83 × 204 cm size is generally the most versatile choice. It is well suited for a bedroom or living area. A 73 cm door may be sufficient in a small space, while a 93 cm door offers a more comfortable passage.
However, the correct size depends on three elements: the width of the opening, the desired clear opening, and the type of installation—surface-mounted or pocket.
What are the standard dimensions for a sliding door?
The most common widths are 63, 73, 83, and 93 cm. The standard height for an interior door leaf is generally 204 cm.
| Door Leaf Dimension | Approximate Passage | Recommended Use |
|---|---|---|
| 63 × 204 cm | 55 to 60 cm | Closet or small space |
| 73 × 204 cm | 65 to 70 cm | Toilet, bathroom, or office |
| 83 × 204 cm | 75 to 80 cm | Bedroom or living area |
| 93 × 204 cm | 85 to 90 cm | Wide and comfortable passage |
These values are indicative: the actual passage depends on the system, stops, handles, and opening overlap.
How to measure the opening before choosing the door?

Take measurements before purchasing the door leaf or track:
- measure the width of the opening at the top, middle, and bottom;
- measure the height on the left, center, and right;
- note the available wall clearance;
- check for outlets, switches, baseboards, or a radiator;
- check the plumb of the wall and the horizontality of the fixing area.
To minimize errors, use a 5 m high-precision tape measure. Keep the smallest value recorded if the floor or walls are not perfectly straight.

What size to choose for a surface-mounted sliding door?
A surface-mounted door slides in front of the wall. To properly conceal the opening, the door leaf should generally extend beyond it by 2 to 4 cm on each side.
Example for an 80 cm opening
- minimum door leaf width: approximately 84 cm;
- comfortable width: approximately 86 to 88 cm;
- practical choice: the next immediately larger standard compatible size.
Also, plan for a clear wall section at least equal to the width of the door leaf. The door should not cover an outlet, switch, or obstacle when open.

What size to choose for a pocket sliding door?
A pocket door disappears into a frame integrated into the partition. The door leaf dimension must exactly match the frame.
To achieve approximately 80 cm of clear passage, an 83 cm door leaf is generally suitable. The assembly comprising the passage and the pocket often occupies nearly twice this width in the partition.
Before starting work, it is imperative to consult the manufacturer's reservation dimensions: total width, height, partition thickness, and pocket footprint.
What length of track to choose for a sliding door?

For a surface-mounted door, the track should generally measure approximately twice the width of the door leaf. This length allows the door to completely clear the opening.
| Door Leaf Width | Minimum Indicative Track Length |
|---|---|
| 73 cm | Approximately 146 cm |
| 83 cm | Approximately 166 cm |
| 93 cm | Approximately 186 cm |
The ManuZen kit for a single sliding door is available with an 1.8 or 2 m track, in black or white. The 1.8 m track can be suitable for many 83 cm door leaves, while the 2 m track offers more leeway and can accommodate a wider door leaf.
To check before purchase: the width, thickness, and weight of the door leaf accepted by the system, as well as the nature of the mounting surface.
What width to choose depending on the room?
For a bathroom or toilet
A 73 × 204 cm door may be suitable when space is limited. However, verify that the passage meets the occupants' needs.
For a bedroom
The 83 × 204 cm format generally represents the best compromise: it facilitates daily passage and the movement of small furniture.
For a living area
Choose an 83 or 93 cm door leaf. For a wide connection between two spaces, a two-leaf sliding door may be more suitable.
For a closet
The width depends on the number of door leaves. Allow for a slight overlap so that the storage closes properly.
How to install the track accurately?

The track must be perfectly horizontal and fixed to a sufficiently strong support. Misalignment can cause unintentional door movement or irregular wear of the rollers.
- draw the fixing axis above the opening;
- check it with a 4D laser level;
- mark the drilling points;
- use fasteners adapted to the wall;
- attach the track with a drill-driver;
- test the sliding before definitively tightening.
If outlets or switches are near the drilling area, cut the power and check the area before proceeding.
Mistakes to avoid
- choosing a door leaf exactly as wide as the opening;
- confusing the door width with the clear opening;
- forgetting the necessary wall clearance;
- choosing the track without checking compatible weight and thickness;
- neglecting the pocket's footprint for a pocket door;
- fixing the track without checking its horizontality;
- using fasteners unsuitable for the support.
Summary table
| Situation | Generally recommended dimension |
|---|---|
| Small closet | 63 × 204 cm |
| Toilet or bathroom | 73 × 204 cm |
| Bedroom | 83 × 204 cm |
| Main room | 83 or 93 × 204 cm |
| Comfortable passage | 93 × 204 cm |
| Large separation | Two 73 or 83 cm door leaves |
Frequently asked questions
Which sliding door to choose for an 80 cm opening?
For a surface-mounted installation, generally choose a door leaf of approximately 84 to 88 cm so that it properly covers the opening. For a pocket door, select a unit designed to provide approximately 80 cm of clear passage.
Should the sliding door be wider than the opening?
Yes, for a surface-mounted installation. An overhang of 2 to 4 cm on each side limits gaps and conceals the opening when the door is closed.
What size to choose for a bedroom?
An 83 × 204 cm door generally represents the best compromise between comfort, clear passage, and space requirement.
Is a 2 m track suitable for an 83 cm door?
Its length is generally sufficient as it exceeds double the width of the door leaf. Nevertheless, check all limits indicated by the manufacturer, especially the weight and thickness of the door.
What dimension offers a comfortable passage?
An 83 cm door leaf is suitable for most uses. A 93 cm model offers a more generous passage.
Conclusion
So, what size to choose for a sliding door? The 83 × 204 cm format is generally the most versatile choice for a bedroom or living area. A 73 cm door is better suited for small spaces, while a 93 cm door leaf improves passage comfort.
Precisely measure the opening, plan for the necessary overlap, and choose a track close to double the width of the door leaf. For a surface-mounted installation, the ManuZen 1.8 or 2 m track is a coherent solution for a single door, after verifying all technical compatibilities.






