Standard Door Size Australia (Dimensions, Width, Height Guide)
🚪 Standard Door Size Australia (Dimensions Guide)
This standard door size Australia guide covers common door dimensions including width, height, and thickness for internal and external doors. Use this guide for renovations, building, or general reference.
The most common standard door size in Australia is approximately 2040mm high × 820mm wide, with typical thickness around 35–40mm.
📊 Standard Door Sizes (Australia)
| Door Type | Height (mm) | Width (mm) | Thickness (mm) |
|---|---|---|---|
| Internal Door | 2040 | 620, 720, 770, 820 | 35 |
| External Door | 2040 | 820, 870, 920 | 40 |
| Sliding Door Panel | 2040–2400 | 1200–2400 | Varies |
📏 Internal Door Sizes
Internal doors in Australia are typically 2040mm high with widths ranging from 620mm to 820mm. Narrower doors are often used for bathrooms and smaller rooms, while wider doors are used for main living areas.
🚪 External Door Sizes
External doors are generally the same height (2040mm) but are often wider and thicker for added durability and security. Common widths include 820mm, 870mm, and 920mm.
📐 Door Thickness Explained
Internal doors are usually around 35mm thick, while external doors are thicker (around 40mm) for strength and insulation.
Specialty doors, such as fire-rated or soundproof doors, may have different thicknesses.
⚖️ Choosing the Right Door Size
Choosing the right door size depends on room layout, accessibility requirements, and building standards. Wider doors may improve accessibility and movement between spaces.
Always measure your door frame opening before purchasing or installing a door.
❓ Common Questions
What is the most common door size in Australia?
2040mm high × 820mm wide is the most common standard door size.
Are internal and external doors the same size?
They are usually the same height, but external doors are often wider and thicker.
How do I measure a door?
Measure the height, width, and thickness of the door or door frame opening.
Do door sizes vary?
Yes, sizes can vary depending on building type, design, and custom requirements.
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This guide provides general information on standard door sizes in Australia. Dimensions may vary depending on manufacturer, building standards, and specific project requirements. Always confirm measurements and specifications before purchasing or installing doors. This page does not guarantee compatibility for all applications.