Choosing the right barn door size matters for both looks and function. This guide makes it straightforward to understand barn door sizes in Australia, measure your opening correctly, and pick a door that provides ideal full coverage. With the standard sizes and measuring steps below, your barn door will slide smoothly, cover the opening, and lift the look of your room. Whether you are renovating or building, accurate measuring helps ensure an easy installation and a tidy finish.
Barn doors in Australia come in a wide range of commonly stocked dimensions, rather than one rigid standard. Sizes depend on the door’s intended use, the opening width, and how much wall space you have for the door to slide on. Typical Australian barn door sizes cover common residential openings and add extra width for overlap to prevent gaps. The right size depends on your doorway width and height, and how much the door should extend beyond the opening for privacy and appearance.
Brisbane Barn Doors offers a selection of popular barn door sizes suited to most Australian homes. Our expert advice is to always allow 100mm overlap for the width of the opening and at least 10mm overlap for the height, understanding this will be dependent on your available wall space.
Our standard sizes include:
Each size suits different openings and wall spaces, so you can choose options for compact or wider doorways. Browse our online store to see the ready-made doors we keep in stock.
Accurate measurements are essential to choosing the right barn door size. Follow these steps to measure your doorway properly.
If measuring the inside of the opening, allow an additional 100mm for the width and 10mm for the height to ensure the barn door adequately overlaps the opening.
For example, if your opening is 1100mm wide × 2390mm high, your ideal barn door size would be 1200mm wide × 2400mm high.
If measuring from the outside of the architrave to the outside of the architrave, we recommend allowing an additional 10–20mm of overlap.
For example, if the outside-to-outside width of your architrave is 1180mm and the height from the floor to the top of the architrave is 2400mm, your ideal barn door size would be approximately 1200mm wide × 2400mm high.
A sliding barn door needs enough clear wall space beside the doorway to slide open. For example, if your opening is 1100mm wide and you have 1150mm of clear wall space beside it, a 1200mm wide barn door would work nicely. When fully open, approximately 50mm of the door would remain overlapping the doorway. We recommend this small overlap so the edge of the door remains easy to grip from the opposite side when closing it.
Here are practical examples that combine opening measurements with suggested overlap:
These examples show how opening width plus desired overlap points you to suitable stocked barn door sizes.
Choosing a stocked barn door size keeps installation simple and reduces wait times. If your doorway is about 900 mm wide, a 1000 mm door is a good match to ensure overlap and clearance. For openings around 1100 mm, the doors we stock work well. Our range covers many common Australian openings, so you can pick a ready-made option without the delay of custom manufacturing.
Track length is key to proper barn door operation. The track must be long enough for the door to slide completely clear of the opening when open. As a rule, the track should be at least twice the door’s width. For example, a 900 mm door requires a track of at least 1800 mm. Correct track sizing ensures smooth sliding and prevents the door from overhanging the wall. We supply compatible track systems for both standard and custom door sizes. Barn door tracks can be cut to the ideal length during installation to suit your space and door setup. Tracks 3.6m and longer are supplied in two lengths with a track joiner and include the hardware required to install two barn doors, if needed. For example, when ordering a 4m barn door track, you will receive 2 × 2m track lengths, a track joiner, 4 rollers, 2 floor guides, 2 adjustable wall guides, and the other components required for installation.
See more options in our Barn Door Track Range.
Brisbane Barn Doors supplies Australian-made barn doors in standard and custom sizes, with options to suit your project. Explore our online store to view popular sizes, accessories, or to request a custom quote. Careful measuring makes sure your new barn door fits well, looks great, and works reliably.
What are standard barn door sizes? Barn doors typically range from 900 mm to 1500 mm wide, with heights from 2150 mm to 2400 mm, fitting most residential openings.
How do I know what size barn door I need? Measure your doorway width and height, then choose a door about 100 mm wider than the opening to give adequate coverage.
How much wider should a barn door be than the opening? Aim for around 50 mm additional width on each side to reduce gaps. If one side of the doorway butts against a wall, we recommend allowing approximately 50mm of overlap on the open side only, rather than adding the full 100mm to the door width.
How should I measure for a barn door? Measure the doorway’s width and height carefully, allow clearance for the track and hardware (ideally 200 mm of bulkhead space), and confirm there is enough wall space for sliding.
What size barn door do I need for a 900 mm opening? A 1000 mm-wide barn door suits a 900 mm opening, providing sufficient overlap. This provides enough room for the mounting timber, track, rollers and required hardware, while also allowing adequate clearance for the door to operate correctly.
If you have limited space above your opening or a bulkhead, send us a photo and your measurements, and our team can advise whether a barn door installation will work in your space.
Can I order a custom-size barn door? Yes, Brisbane Barn Doors offers custom sizing for openings that do not match standard dimensions.
This guide aims to make measuring and selecting barn door sizes in Australia straightforward, reflecting the care and expertise you can expect from Brisbane Barn Doors.
