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A practical reference for standard door widths, heights, thicknesses, room-specific dimensions, regional differences and project measurement requirements.
Door dimensions vary by country, room type, building standard and project requirements. However, many residential interior doors fall within approximately 700–900 mm in width and 2000–2100 mm in height.
Common sizes include 762 × 2032 mm, 813 × 2032 mm, 800 × 2100 mm and 900 × 2100 mm, depending on whether the project follows imperial or metric conventions.
When specifying a door, always distinguish between the door leaf size, frame size, clear opening and rough opening. These measurements are related, but they are not the same.
Quick reference: For many modern residential projects, 800–900 mm wide × 2100 mm high is a common starting range for interior doors.
Quick Answer
What Is a Standard Door Size in mm?
There is no single worldwide standard door size. In residential projects, common interior door widths generally range from 700 to 900 mm, while common heights range from approximately 2000 to 2100 mm.
In imperial-based markets, frequently used nominal sizes include 30 × 80 inches (762 × 2032 mm), 32 × 80 inches (813 × 2032 mm), and 36 × 80 inches (914 × 2032 mm).
The correct size depends on room type, circulation, accessibility, local building requirements and the door system being used.
Size Chart
Standard Door Size Chart in mm
| Door Type | Common Width | Common Height | Typical Thickness |
|---|---|---|---|
| Bedroom Door | 750–900 mm | 2000–2100 mm | 35–45 mm |
| Bathroom Door | 700–800 mm | 2000–2100 mm | 35–40 mm |
| Kitchen Door | 800–900 mm | 2000–2100 mm | 35–45 mm |
| Interior Door | 750–900 mm | 2000–2100 mm | 35–45 mm |
| Main Entrance Door | 900–1200 mm | 2100–2400 mm | 40–50+ mm |
| Double Door | 1200–1800+ mm | 2100–2400 mm | Project-specific |
Note: These dimensions are common project ranges rather than universal mandatory standards. Local building codes, accessibility requirements and approved project drawings should take priority.
Standard Bedroom Door Size
Bedroom doors commonly fall within 750–900 mm wide × 2000–2100 mm high.
Standard Bathroom Door Size
Bathroom doors are often around 700–800 mm wide × 2000–2100 mm high.
Standard Entrance Door Size
Main entrance doors commonly start around 900 mm wide and may reach 2400 mm high.
Door Height
Standard Door Height in mm — A Closer Look
Door height varies by region and building type. Several dimensions repeatedly appear in residential and commercial projects:
- 2000 mm — common in some residential applications
- 2032 mm — equivalent to the common 80-inch imperial door
- 2040 mm — frequently used in metric-based door systems
- 2100 mm — widely used in contemporary residential and commercial projects
- 2400 mm — often used for villas, premium apartments and higher ceilings
Standard Door Height in Malaysia
Door sizes used in Malaysia vary by building type, room function, architectural specification and supplier system. A 2100 mm door height is commonly encountered in contemporary residential projects, while taller doors such as 2400 mm may be used for entrances, villas and higher-ceiling interiors.
The final size should always be confirmed against the architectural door schedule and applicable local requirements rather than treated as one universal Malaysian standard.
Custom Sizing
When Is a Custom Door Size Needed?
Standard sizes are useful for planning, but many projects require custom dimensions because of architectural openings, ceiling heights, existing structures or design intent.
- oversized villa entrances;
- floor-to-ceiling doors;
- pivot doors;
- hidden doors integrated with wall panels;
- renovation openings;
- hotel and apartment projects with specific door schedules;
- accessibility or fire-rated applications.
The larger or heavier the door becomes, the more important it is to coordinate frame structure, hinges or pivot hardware, lock preparation, wall thickness and installation tolerance.
Project Applications
Door Dimensions for Large-Scale Projects
Large apartment, hotel and villa projects require more than selecting a nominal door width and height. Every opening must be coordinated through an approved door schedule.
Door Leaf Size
The finished movable panel dimension.
Frame Size
The overall dimensions of the door frame system.
Rough Opening
The structural wall opening before frame installation.
Clear Opening
The actual usable passage width after installation.
Hardware Preparation
Hinge, pivot, closer, lock and access-control positions.
Specification
Key Factors When Specifying Door Dimensions
Room Function
Bedroom, bathroom, entrance and service doors have different circulation and privacy requirements.
Clear Opening
The nominal door leaf width is not always the same as the usable passage width.
Wall Thickness
Frame depth should correspond to the finished wall construction.
Finished Floor Level
Tile, stone, timber flooring and thresholds affect the final opening height.
Door Weight & Hardware
Oversized doors may require stronger hinges, pivot systems or reinforced frames.
Codes & Accessibility
Fire, escape, accessibility and building regulations may determine minimum dimensions.
Measurement Terms
Door Size vs Frame Size vs Rough Opening
DooDoor Leaf
The movable door panel.
Door Frame
The structural frame surrounding the leaf.
Rough Opening
The wall opening prepared before installation.
Clear Opening
The usable passage after installation.
A 900 mm door leaf does not require a 900 mm rough opening. Additional allowance is required for the frame, installation and adjustment.
Door Types
How Door Dimensions Change by Door Type
| Door Type | Size Consideration |
|---|---|
| Flush Door | Usually follows conventional interior openings. |
| Hidden Door | Must coordinate frame and wall panel alignment. |
| Pivot Door | Often wider or taller and requires hardware calculation. |
| Sliding Door | Opening width depends on panel overlap and track system. |
| Glass Door | Glass size depends on frame and hardware configuration. |
| Double Door | Requires total opening and individual leaf dimensions. |
Conversion Reference
Door Size Conversion Chart: mm, cm and Inches
| Millimeters | Centimeters | Inches |
|---|---|---|
| 610 mm | 61 cm | 24 in |
| 700 mm | 70 cm | 27.6 in |
| 711 mm | 71.1 cm | 28 in |
| 750 mm | 75 cm | 29.5 in |
| 762 mm | 76.2 cm | 30 in |
| 800 mm | 80 cm | 31.5 in |
| 813 mm | 81.3 cm | 32 in |
| 900 mm | 90 cm | 35.4 in |
| 914 mm | 91.4 cm | 36 in |
| 2032 mm | 203.2 cm | 80 in |
| 2100 mm | 210 cm | 82.7 in |
| 2400 mm | 240 cm | 94.5 in |
Conversion reference: 1 inch = 25.4 mm.
FAQ
Frequently Asked Questions
▼What is a standard door size in mm?
Many residential interior doors fall within approximately 700–900 mm wide and 2000–2100 mm high, although there is no single worldwide standard.
▼What is a normal standard door size?
Metric projects frequently use widths around 800–900 mm and heights around 2040–2100 mm, while imperial markets commonly use sizes such as 30 × 80 or 32 × 80 inches.
▼Can a door be 700 mm wide?
Yes. A 700 mm door may be used for bathrooms, utility rooms or compact spaces, depending on local requirements and required clear opening.
▼Is a 610 mm door too small?
610 mm can work for some closets or limited-access spaces, but it is generally narrow for normal bedroom or primary circulation use.
▼What is the standard bedroom door size in mm?
Bedroom doors commonly range from approximately 750–900 mm wide × 2000–2100 mm high.
▼What is the standard bathroom door size in mm?
A common bathroom range is approximately 700–800 mm wide × 2000–2100 mm high, subject to accessibility requirements.
▼What is the standard door height in Malaysia?
A 2100 mm height is commonly encountered in contemporary Malaysian residential projects, but actual specifications vary by project and applicable requirements.
▼What is the standard thickness of an interior door?
Many interior doors are approximately 35–45 mm thick, depending on construction, hardware, fire rating and acoustic performance.
▼What is the difference between door size and rough opening?
The door size usually refers to the leaf or complete door set. The rough opening is the structural wall opening and must normally be larger to accommodate the frame and installation tolerance.
Conclusion
Choosing the Right Door Size
Standard door sizes provide a useful starting point, but the correct dimension depends on room function, regional standards, clear opening requirements, frame construction and project specifications.
For residential projects, 700–900 mm widths and 2000–2100 mm heights cover many common interior applications. Entrance, double, pivot and custom doors may require significantly larger dimensions.
Room Function→ Clear Opening→ Door Leaf→ Frame→ Rough Opening→ Hardware→ Shop Drawing Approval
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