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Sliding wardrobe doors involve a wide range of technical terms covering systems, tracks, materials, finishes, and installation methods. This glossary is designed to give you a clear, accurate understanding of how sliding wardrobe doors work so you can design, measure, and order with confidence.
Whether you are planning a new fitted wardrobe or replacing existing doors, this guide explains every key component in plain, practical language.
A bottom rolling system supports the full weight of the doors on the bottom track. Wheels fitted to each door run along the lower rail, allowing smooth and stable movement.
All of our sliding wardrobe doors use a bottom rolling system, offering:
Browse made-to-measure sliding wardrobe doors
A top hung system supports the doors from the top track, with the bottom guide used only for alignment and stability.
We do not supply top hung systems.
Door frames hold the panels securely in place and define the strength and finish of the door.
View aluminium sliding wardrobe doors
View steel sliding wardrobe doors
Top guide wheels sit inside the top track and are used purely for alignment. They do not carry weight in a bottom rolling system.
Running gear refers to the wheel assemblies fitted to each door. These components carry the door weight and allow smooth sliding along the bottom track.
Tracks are the rails fitted to the top and bottom of the wardrobe opening that guide door movement.
Tracks are typically manufactured in steel or aluminium depending on the door frame system, ensuring strength and smooth operation.
Learn more in our installation guide
Door panels define the visible appearance of your sliding wardrobe doors.
Reflect light and help create a brighter, larger-looking space.
A softer reflective finish with reduced glare.
Modern, clean finishes available in solid or frosted styles.
Explore all sliding wardrobe door finishes
MFC is a durable engineered board used for wardrobe door panels. It has a decorative melamine surface that is hard-wearing, easy to clean, and available in many finishes.
Learn more in our guide to Melamine Faced Chipboard (MFC)
Shaker doors feature a structured panelled design combined with modern aluminium framing, offering a timeless and versatile look.
Explore shaker sliding wardrobe doors
Industrial-style doors feature bold steel-look frames inspired by modern loft and warehouse interiors.
Explore industrial sliding wardrobe doors
Frameless doors reduce visible framing for a clean, minimalist, contemporary appearance.
Explore frameless sliding wardrobe doors
Split panel doors combine multiple materials within a single door, such as mirror and woodgrain finishes.
An H-bar is a structural divider used within a door to separate different panel materials.
This refers to how doors sit when closed and how much one door overlaps another.
Door stack describes how doors are positioned when fully opened and stacked behind each other.
The aperture is the full opening where your sliding wardrobe doors are installed. Accurate measurement is essential for a precise fit.
See measuring guide
Doors manufactured exactly to your opening dimensions for a perfect fit.
Small gaps required around doors to ensure smooth movement without friction.
Space required for doors to slide behind each other when fully open.
Liners are fitted to the floor and ceiling of the wardrobe opening to provide a level surface for track installation.
Fixings attached to side walls that help ensure correct door alignment when closed.
Panels used to close exposed wardrobe ends where no natural wall exists.
Slows doors before closing to prevent slamming and reduce wear.
Prevents doors from lifting out of the track during use.
Soft bristle seals fitted to door edges. They help reduce noise and provide a smoother, more refined closing action.
The aperture width and height are the most important measurements for a perfect fit.
Yes, most systems are designed for straightforward installation. Installation guide.
Small clearance gaps are required for smooth operation.
Bottom rolling systems provide the strongest and most reliable performance.
If you are unsure which system or finish is right for your space, we can help.
Start designing your sliding wardrobe doors
This glossary is designed to give you complete clarity on sliding wardrobe doors so you can design and order with confidence. If you need help, our team is always available to support you from design through to installation.
Seeing finishes in your own space makes it easier to choose. You can:
Our guides are written by the Wardrobe Doors Direct design and technical team, specialists in made-to-measure sliding wardrobe doors across the UK.
Call our team on 0800 035 1730.

We offer a custom design
service at NO extra cost.
Follow these simple guidelines to
get the perfect fit for your sliding
wardrobe doors.
The sliding wardrobe doors are
very easy to install so you don’t
have to be a DIY expert.
Request FREE samples to help
with the design process and
colour matching.