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A practical reference for standard door widths, heights, thicknesses, room-specific dimensions, regional differences and project measurement requirements.

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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?

Standard interior door size range in millimeters

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 TypeCommon WidthCommon HeightTypical Thickness
Bedroom Door750–900 mm2000–2100 mm35–45 mm
Bathroom Door700–800 mm2000–2100 mm35–40 mm
Kitchen Door800–900 mm2000–2100 mm35–45 mm
Interior Door750–900 mm2000–2100 mm35–45 mm
Main Entrance Door900–1200 mm2100–2400 mm40–50+ mm
Double Door1200–1800+ mm2100–2400 mmProject-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.

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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:

Standard door height comparison in millimeters
  • 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?

Oversized custom door manufacturing in factory
Custom interior doors for residential projects

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 dimensions and opening measurement guide

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

Door leaf frame and rough opening diagram

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 TypeSize Consideration
Flush DoorUsually follows conventional interior openings.
Hidden DoorMust coordinate frame and wall panel alignment.
Pivot DoorOften wider or taller and requires hardware calculation.
Sliding DoorOpening width depends on panel overlap and track system.
Glass DoorGlass size depends on frame and hardware configuration.
Double DoorRequires total opening and individual leaf dimensions.

Conversion Reference

Door Size Conversion Chart: mm, cm and Inches

Door size conversion chart in millimeters and inches
MillimetersCentimetersInches
610 mm61 cm24 in
700 mm70 cm27.6 in
711 mm71.1 cm28 in
750 mm75 cm29.5 in
762 mm76.2 cm30 in
800 mm80 cm31.5 in
813 mm81.3 cm32 in
900 mm90 cm35.4 in
914 mm91.4 cm36 in
2032 mm203.2 cm80 in
2100 mm210 cm82.7 in
2400 mm240 cm94.5 in

Conversion reference: 1 inch = 25.4 mm.

FAQ

Frequently Asked Questions

Door Size FAQ

▼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

Explore our Kitchen Cabinets and Wardrobe collections to see factory-direct cabinetry for villa and hotel projects, or contact our team for a project-specific consultation and quote.
Related reading:
—Interior Doors: A Complete Guide for Villa & Hotel Projects
—Door Rough Opening Size: The Complete Chart & Sourcing Guide
— White Lacquer Glass Texture Kitchen Cabinets: Design Guide for Villa & Hotel Projects
— Which Material Is Best for Kitchen Cabinets? Complete Guide for Villa & Hotel Projects
— Cabinetry Factory: How to Choose the Right Custom Cabinet Manufacturer for Villa and Hotel Projects
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— Turnkey Interior Solutions: The Complete Guide for Property Projects
— What Is a Flush Door? Complete Guide to Types, Materials & Project Applications
— Hotel Fit-out Projects: Case Studies and Delivery
— Villa Fit-out Projects: Full-House Interior Solutions
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