The Essential Guide to Standard Internal Door Sizes in Australia

Why Knowing Standard Door Sizes is Important

Choosing the right internal door size is crucial for both renovations and new constructions. Standardized door sizes help ensure proper fit, compliance with building regulations, and seamless installation. Using the correct dimensions also allows for smooth door operation and optimal functionality.

By understanding the standard internal door sizes in Australia, homeowners and builders can select the most suitable option for their needs while maintaining aesthetic and functional harmony within the home.

What Are the Standard Internal Door Sizes in Australia?

Standard Height

The most common internal door height in Australia is 2040mm, which is suitable for standard residential and commercial properties. However, for taller ceilings and specific design requirements, other variations may be available.

Standard Widths

The standard widths for internal doors in Australia include:

• 520mm
• 620mm
• 720mm
• 770mm
• 820mm (most common for general use)
• 870mm
• 920mm (suitable for wheelchair accessibility and wider entrances)

Choosing the right width depends on the function of the space and accessibility needs.

Standard Thickness

The typical internal door thickness options are:

• 35mm – common for residential properties.
• 40mm – often used in higher-end homes or commercial buildings for better durability and sound insulation.

Different materials, such as solid core, hollow core, or uPVC, may influence door thickness and overall performance.

How to Measure an Internal Door Correctly

Accurate measurements are essential when replacing or installing internal doors.

Step-by-Step Guide to Measuring an Existing Door

1. Measure the Height: Take measurements from the top to the bottom of the door, ensuring consistency.
2. Measure the Width: Measure across the door at multiple points to confirm uniformity.
3. Measure the Thickness: Check the current door’s thickness for compatibility with existing frames.

Measuring the Door Frame for a New Installation

If a door frame is already in place, measure:

• The height and width of the frame opening.
• The rebate depth to ensure proper door fitting.
• Considerations for architraves and surrounding wall structures.

Custom vs. Standard Internal Doors: Which is Right for You?

When to Choose Standard Doors

• Easier and faster installation.
• Cost-effective and readily available.
• Suitable for most modern homes and renovations.

Benefits of Custom Doors

• Ideal for older homes with non-standard openings.
• Unique design and material choices.
• Flexibility for specialized spaces and architectural features.

Door Frame Sizes and Considerations

Matching the door to the right frame size is essential for seamless installation and functionality.

Key Considerations for Door Frames

• Ensure the frame dimensions align with the door’s height, width, and thickness.
• Adjustments may be necessary for older homes where walls and frames may have shifted over time.
• Custom door frames can be tailored for unique spaces, ensuring a perfect fit.

Choosing the Right Internal Door Size for Your Space

The size of an internal door should complement the functionality and layout of the room.

Best Door Sizes for Small Rooms and Compact Areas

• Narrower doors (520mm–720mm) work well for bathrooms, storage spaces, and wardrobes.
• Pocket doors or bi-fold doors can save space in tight areas.

Sliding and Bi-Fold Door Options

• Sliding doors are ideal for separating rooms without requiring clearance for door swings.
• Bi-fold doors allow flexibility in large, open-plan living areas.

Compliance with Australian Building Codes

Adhering to Australian building regulations ensures safety, accessibility, and functionality.

Key Standards for Internal Doors

• AS 1428: Covers accessibility requirements for disabled access, specifying wider doors where necessary.
• AS 2047: Applies to performance requirements for doors and windows, ensuring durability and energy efficiency.
• AS 1288: Covers glazing and safety standards for doors with glass panels.

Understanding and following these standards helps homeowners and builders meet regulatory requirements while ensuring optimal usability.

Why Blue Sky Windows is Your Best Choice for Internal Doors

At Blue Sky Windows, we offer high-quality internal doors that combine durability, style, and energy efficiency. Our range includes both standard-sized and custom uPVC internal doors, designed to enhance insulation and aesthetics while ensuring a perfect fit for any home.

• Premium uPVC Internal Doors: Moisture-resistant, soundproof, and energy-efficient.
• Custom Solutions: Tailored options to meet unique size and design requirements.
• Expert Guidance: Assistance in selecting the best door sizes and styles for any space.

Understanding standard internal door sizes in Australia is essential for seamless renovations and new constructions. Whether selecting a standard size for easy installation or opting for a custom solution, ensuring proper fit and compliance with regulations is key to a functional and aesthetically pleasing space.

For expert advice and high-quality door solutions, contact Blue Sky Windows today to explore the best options for your home.