When it comes to doors, size really does matter. It’s not just about how they look—doors need to be the right size to make sure moving around your home is easy and safe. So, if you’re wondering what is the standard door size in Australia, it’s important to know that these sizes are carefully designed. They help with everything from fitting furniture through tight spaces to making sure everyone can get out quickly in an emergency. Whether you’re building, renovating, or just swapping out a door, knowing these standard measurements can save you a lot of hassle and help your home feel just right.
Why Do Door Sizes Matter?
Standard door sizes aren’t just about uniformity—they serve real-life practical and safety purposes. Here’s why door sizing is such an important detail in construction:
- Ease of movement: A door should be wide and tall enough for people to walk through comfortably, even when carrying items like furniture or groceries.
- Safety & emergency access: Doors that are too narrow may create hazards in emergencies. In Australia, building regulations ensure that doorways allow safe evacuation and access.
- Compliance with building codes: Australian building standards specify minimum door sizes for accessibility and safety—especially in public buildings or homes with people with disabilities.
- Easy replacement: If you’re replacing a door, knowing the standard door size in Australia helps you find a ready-made replacement without needing to modify the frame.
Therefore, understanding door sizing is not just useful—it’s necessary.
What Is the Standard Door Size in Australia?
In most Australian homes, the standard internal door size is:
- Height: 2040 mm (2.04 metres)
- Width: 820 mm
- Thickness: 35 mm
This size is common in bedrooms, bathrooms, hallways, and other internal spaces. It provides a good balance between comfort and space efficiency. However, this is just the starting point—there are several variations based on location, purpose, and room layout.
Types of Doors in Australia
Doors are more than just entry points; in Australia, they reflect the country’s architectural diversity, climate needs, and lifestyle choices. From beachside homes to city apartments and outback farmhouses, the choice of door types often depends on both function and design aesthetics. In fact, there are plenty of different types of doors used in internal and external settings. Below, we explain some of them.
Standard Internal Door Sizes in Australia
When renovating or building a home in Australia, one important but often overlooked detail is the size of your internal doors. While style and material are key decisions, ensuring your doors fit the right size is essential for both aesthetics and functionality. Also, understanding the standard internal doors sizes in Australia helps make installation smoother and ensures easy access throughout your home.
In Australia, there are typical door dimensions that most manufacturers and builders follow. These standard sizes are designed to suit the needs of most homes and align with commonly used frame sizes. The most standard internal door size in Australia is:
- 2040 mm high x 820 mm wide x 35 mm thick
This is the go-to size for many interior doorways, offering a good balance between accessibility and space-saving design. In addition to this size, other standard widths include:
- 620 mm wide (used in smaller areas like closets or pantries)
- 720 mm wide (common in bathrooms)
- 770 mm wide (suitable for medium-sized rooms)
- 870 mm wide (often used for larger openings or where accessibility is a concern)
The height of 2040 mm and thickness of 35 mm are fairly consistent across all these widths. In some cases—especially for commercial or accessible residential designs—thicker or taller doors may be used.
These doors are primarily used to separate rooms, provide privacy, and enhance the home’s interior style. They’re generally lighter, less secure, and more design-focused than external doors. For example, flush doors or panel doors are common for internal use.
Standard External Door Sizes in Australia
When building or renovating a home in Australia, choosing the right external doors is an essential step in both the design and functionality of your property. While style, material, and security features are often top of mind, door sizing plays a critical role in making sure everything fits properly. As a result, understanding standard external doors sizes in Australia can help simplify the selection and installation process and avoid costly custom work.
In Australia, the most common size for a standard single external door is:
- 2040 mm high x 820 mm wide x 40 mm thick
This size suits most standard entryways and is widely available across door manufacturers. Moreover, the slightly thicker design compared to internal doors (which are typically 35 mm) offers added strength and insulation for outside environments.
However, external doors are also available in various widths to accommodate different design preferences and needs. Other standard sizes include:
- 2040 mm x 870 mm (used for wider entry points), 2040 mm x 920 mm (common for accessibility or more spacious front entries), 2040 mm x 820 mm with side panels (often used in decorative or light-filled entrance designs)
These options offer more flexibility and visual impact, especially for modern homes that prioritize natural light and open spaces. Therefore, external doors need to offer security, weather resistance, insulation, and curb appeal. Materials are typically heavier, more durable, and often include locking systems. Some of these are examples of it.
Conclusion
To wrap it up, understanding the standard door size in Australia—including both Standard Internal Doors Sizes and Standard External Doors Sizes—makes life a lot simpler. The right-sized doors mean your home stays safe, accessible, and comfortable without awkward fits or expensive custom jobs.