
Measuring a door is a crucial step in determining whether you need a custom door or can opt for a ready-made one. While there are standard door sizes in Australia, the size you need will depend on the function of the door and the expected traffic flow. For example, high-traffic areas may require wider doors to accommodate more people or large items. This paragraph will guide you through the process of measuring your door to ensure you get the perfect fit.
| Characteristics | Values |
|---|---|
| Standard door size | 2040 x 820 mm x 35 mm |
| Standard height | 2040 mm |
| Standard width | 820 mm |
| Other common widths | 720 mm, 770 mm, 870 mm |
| Thickness of door frames | Up to 40 mm |
| Standard door thickness | 35 mm |
| Standard width for 2 panels | 1800 mm |
| Standard width for 3 panels | 2700 mm |
| Standard width for 4 panels | 3500 mm |
| Standard for high-traffic areas | Wider doors |
| Door jamb | Wooden frame surrounding the door |
| Door knob location | Indicates whether left- or right-handed door |
| Door swing | In-swing or out-swing |
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What You'll Learn

Standard door sizes in Australia
When measuring a door, it's important to measure the width, height and depth of the door jamb—the wooden frame that surrounds the door. This is because doors may have been fitted poorly, and measuring the jamb will ensure you get a perfect fit. It's also important to note whether the door is left- or right-handed (depending on where the hinges are) and whether it's an in-swing or out-swing door.
In Australia, internal doors are typically 2040mm tall and 820mm wide, with a thickness of 35mm. However, there is no single standard width for internal doors in Australia, and they can range from 520mm to 920mm wide. The standard height of 2040mm is the norm for both interior and exterior doors, although exterior doors are usually slightly thicker at 40mm.
The Building Codes of Australia (BCA) sets the minimum door height at 2040mm, but some newer homes are being built with taller ceilings, so doors can be taller, up to 2340mm.
The standard size for double doors usually ranges between 1200mm and 1600mm in width, with individual door panels measuring from 600mm to 800mm wide, all maintaining a standard height of 2040mm.
Toilet and dresser doors are generally smaller in width, and if you need wheelchair access, you'll need to make sure your doors are wide enough to accommodate this.
The standard size of doors in Australia helps keep costs down and makes installation more convenient. Customisation can be expensive for both the manufacturer and the customer.
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$12.61

How to measure an internal door
Measuring an internal door is a precise task that requires careful attention to detail. The first step is to gather the necessary tools: a tape measure, a pencil, and a piece of paper. While measuring, it is crucial to consider the function of the door and the expected foot traffic. Wider doors may be required for areas with high traffic to facilitate the movement of people and large items.
The next step is to determine the width, height, and depth of the door. Start by measuring the width of the door space at the top, middle, and bottom. It is important to measure in three places as variations can occur due to uneven frames or wear. The widest measurement will be your required width.
To measure the height, focus on the inside of the vertical sides of the frame. Again, take measurements from the left, middle, and right sides, and the longest length will be your required height. Ensure you factor in the floor covering when measuring the height.
The thickness of an internal door is typically standardised, with the most common thickness being 35mm. However, fire doors, often used in kitchens or garages, can be 40mm or 44mm thick. To determine the appropriate thickness, measure the frame rebate where the door will sit when closed.
While there is no single standard internal door width in Australia, the most common size is 820mm wide by 2040mm high. Standard door sizes typically range from 520mm to 920mm in width and maintain a minimum height of 2040mm as per the Building Codes of Australia (BCA).
It is always recommended to double-check all measurements before making any purchases. If you are unsure about your measurements or have specific requirements, consult a professional for expert advice.
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How to measure the door jamb
Measuring your door jamb correctly is essential when ordering pre-hung doors. If you are keeping your existing frames, you only need to order door slabs. However, if you are replacing your door frames, you must understand how door frames are measured.
The door jamb is the frame part that maintains the panel in position around the door. It is not the visible framing (architrave) on the outside of the doors. The jamb width is the measurement of the wall thickness that the door unit will be fitting into, including any sheetrock or sheathing/siding on the inside or outside. This is crucial because if your jamb is too small, the framing may be exposed, and if it is too large, it will need to be trimmed. An incorrectly sized jamb can cause problems like the door not shutting properly, creating drafts, or leaving openings for insects to enter.
To measure the door jamb size, you may need to remove any trim moulding or siding on the door. If you do not remove the trim, measure from the inside edges of the trim or moulding, ensuring you are measuring from the visible edges of the jamb. First, measure the width of the door. Then, measure the width and height of the door opening and the size of the door itself. For the most precise measurement, it is recommended to remove the casing and brick mould to visualise the space between the stud and the jamb. This allows you to measure the door jamb width from the interior of the wall stud to the interior of the wall stud, adding 1/8 inch to ensure a secure fit.
Standard door jamb widths typically measure 4 9/16-inches, 5 12-inches, and 6 9/16-inches. However, these measurements can vary depending on wall thickness and the type of door. Thus, it is essential to consider the wall thickness, type of door, and compatibility between the door and jamb width to ensure a proper fit.
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Common door panel configurations
Panel doors are a classic door type found in many Australian homes. They are made up of multiple panels that create a traditional, detailed appearance. They are usually framed by stiles and rails and can be solid or hollow-core. Panel doors can be made of timber or composite construction and are available in a variety of designs. They are commonly used for both exterior and interior doors, making them a popular choice for living rooms, kitchens, and entryways.
Panel doors can feature a variety of panel designs, including raised, recessed, or glass panels. One common configuration is the bifold door, which consists of multiple panels that fold against each other when opened, creating a wide opening that can seamlessly connect indoor and outdoor areas. Bifold doors are a popular choice for smaller spaces such as ensuites or pantries, as well as for connecting rooms and enhancing natural light and ventilation.
Another common panel door configuration is the stacker sliding door. These doors utilise multiple panels that slide along a wide track, stacking in front of each other when fully opened. A similar option is the barn sliding door, which offers a unique look with a door hung on an exposed upper track. Sliding doors are often used in patio, laundry, or bathroom areas, hallway cupboards, and ensuites.
French doors are another type of panel door that typically consists of two doors that open outward or inward, often with large glass panels. They are commonly used to connect living rooms to outdoor patios or gardens, creating a seamless transition between indoor and outdoor living spaces. French doors allow for a maximum amount of natural light, making them ideal for areas that need additional brightness.
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Choosing the right door type
When choosing the right door type, it's important to consider factors such as style, material, functionality, and location. Here are some common door types in Australia and their characteristics:
Flush Doors
Flush doors are one of the most common door types in modern Australian homes. They have smooth, flat surfaces and a simple design, making them ideal for contemporary interiors. Typically made from MDF with a honeycomb-like cardboard core, flush doors are affordable, lightweight, and easy to install. They are commonly used for interior bedrooms, bathrooms, and closets, where a simple and unobtrusive design is preferred.
Panel Doors
Panel doors are another classic option found in many Australian homes. They consist of multiple panels that create a traditional and detailed appearance. Panel doors can be made of timber or composite construction and feature various designs, including raised, recessed, or glass panels. They are versatile and can be used for both exterior and interior doors, making them popular for living rooms, kitchens, and entryways.
Sliding Doors
Sliding doors have gained popularity in modern Australian homes due to their space-saving properties and contemporary aesthetic. They move smoothly along a track, making them ideal for small spaces like apartments or narrow hallways. There are several types of sliding doors, including pocket sliding doors, stacker sliding doors, and barn sliding doors, each offering unique advantages and design options.
Bifold Doors
Bifold doors are perfect for smaller spaces such as en suites or pantries, as they enhance the flow of natural light and ventilation. They are also excellent for connecting rooms and come in various styles, such as the timeless French doors.
Exterior Doors
When choosing an exterior door, consider factors such as security, durability, and curb appeal. Common materials for exterior doors include wood, steel, and fibreglass, each offering different advantages in terms of cost, energy efficiency, and security. Storm doors, patio doors, security doors, and screen doors are all designed to work with specific entrances and come in various finishes to match your home.
Remember, there is no one-size-fits-all approach to choosing a door type. Consider your specific requirements, including accessibility, and ensure compliance with relevant regulations and standards in Australia.
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Frequently asked questions
Measure the width, height, and depth of the door jamb (the wooden frame that surrounds the door). Measure in at least three different places for both the width and height.
The standard door size in Australia is 2040mm by 820mm by 35mm. The standard height is 2040mm, and the standard width is 820mm, though other popular sizes include 720mm, 770mm, and 870mm.
The standard width depends on the number of panels. For two panels, the width is 1800mm, and for three panels, the width is 2700mm.
Consider the function of the door and the expected traffic flow. High-traffic areas may require wider doors to accommodate more people or large items. Consult a builder, architect, or door supplier for advice if you're unsure.











































