Storage · Sizing
Under-Bed Storage Sizes Explained
By the Nest & Yard editorial teamUpdated 2026-08-094 min read
Our pick: the StorageWorks Large Under Bed Storage Box With Lid, Ultra-Thick Fabric, Grey, 2-Pack — the best Under-Bed Storage we tested, from £25.49.
Maximising the space under your bed can be a fantastic way to combat clutter and make the most of every room in your home. When it comes to under-bed storage solutions, understanding the different size options available is key – sizes aren’t always straightforward! This guide breaks down how these products are typically labelled and measured, offering advice on choosing the right fit for your needs whether you're storing bedding, clothing or other household items, with examples of popular options found on Amazon UK.
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#1 Pick
ZOBER Underbed Storage Bag (2-Pack), Storage Bags for Bedding, King Size Duvet, Linen, Pillow & Shoes- Fabric
Currently unavailable
Pros
- Reinforced zips and handles for durable everyday use
- Clear window panel makes contents easy to identify
- Low profile design slides under most bed frames
Cons
- Non-woven fabric is not fully waterproof

#2 Pick
StorageWorks Large Under Bed Storage Box With Lid, Ultra-Thick Fabric, Grey, 2-Pack- Fabric
£25.49
Pros
- Ultra-thick fabric resists tearing better than thin canvas bags
- Reinforced base keeps its shape even when fully loaded
- Sold as a 2-pack for wardrobe or under-bed use
Cons
- No wheels, so best suited to lighter loads

#3 Pick
Underbed Storage Bag, 3 Pack, 90L Under Bed Storage Box with 4 Large Zip Lock Bags, PVC Window- Fabric
£12.99
Pros
- Set of 3 large 90L bags for duvets, clothes and bedding
- Clear PVC window makes it easy to see contents
- Reinforced handles for carrying when full
Cons
- Zips need careful handling once bags are packed tight
FAQ
What does ‘Underbed Drawer’ actually mean?
‘Underbed Drawers’ are typically plastic storage units with sliding rails that allow you to pull them out from under your bed – they come in various sizes designed specifically for fitting beneath a bed frame.
How is the width of an under-bed unit measured?
The width measurement refers to the internal space needed for the drawer to slide, excluding the rails. It’s crucial to measure this carefully to ensure it fits comfortably within your bedroom’s dimensions and between the bed frame and wall.
What's the difference between a ‘Low Profile’ under-bed unit and one without?
‘Low Profile’ units are specifically designed with a very low base, making them ideal for beds with slats or thinner legs. Without this feature, they may be too tall to fit comfortably beneath standard bed frames.
I have a small bedroom – which size under-bed unit is best?
A 900mm wide unit would generally be suitable for smaller bedrooms and single beds, offering enough space without dominating the area. Ensure you also measure the depth to confirm it fits alongside your bed’s legs.
My bedroom has a raised bed frame – what should I look for?
Prioritise units with adjustable feet or low-profile designs (around 150mm) to accommodate the raised height. Check the product specifications carefully to confirm it'll fit beneath your particular bed type.
What does ‘extendable’ mean in relation to under-bed storage?
'Extendable' units often have rails that slide out further, allowing you to access deeper areas under your bed – this is particularly useful for larger items like bedding or luggage.
How do I measure my space accurately?
Use a measuring tape and take several measurements across the width and depth of your under-bed area. Always account for any obstructions, such as skirting boards or furniture legs.
What about the height? Does it really matter?
The height is important to ensure the unit can fully utilise the space beneath your bed – aim for a height that allows you to stack items effectively without them being difficult to reach.
Can I use an under-bed unit with a non-adjustable bed frame?
While generally designed for adjustable frames, some low-profile units can be used with fixed beds if the base is sufficiently low and doesn’t interfere with the unit's sliding mechanism.
What should I consider when choosing a material?
Plastic underbed storage is typically more affordable and durable for heavy items, while fabric options might be preferable for lighter bedding or clothing – check product descriptions for material details.
In depth
Understanding Under-Bed Storage Dimensions – A Practical Guide
The allure of under-bed storage is undeniable: a vast, untapped space for decluttering your home without sacrificing valuable living area. However, the initial excitement can quickly fade when confronted with a bewildering array of sizes and confusing terminology. Before you commit to an entire unit, it’s crucial to grasp exactly what each measurement signifies and how it aligns with the available space within your UK home. The most common mistake is simply assuming that ‘large’ or ‘extra-wide’ always equates to sufficient room – a misjudgment that can result in a perfectly serviceable storage solution feeling cramped and awkward.
The fundamental sizing system for under-bed storage revolves around its external dimensions: width, depth (or length), and height. Width refers to the overall breadth of the unit, typically measured from one side edge to the other. Depth, often described as ‘long’ or ‘short’, indicates how far the unit extends into your room. This is particularly important because a deeper unit will require more space *within* your room – consider the clearance needed for furniture and movement. Height refers to the overall vertical measurement of the storage unit. Most units are designed to sit flush against the floor, but some models have adjustable feet allowing you to compensate for uneven flooring, which is commonplace in older UK homes. It’s vital to note that these dimensions *include* any edging or trim on the unit itself; the actual usable internal space will invariably be slightly smaller.
Let's break down the common sizes and their suitability for different household situations. ‘Small’ units usually measure around 900mm wide x 450mm deep x 400mm high. These are ideal for single bedrooms, small flats, or spare rooms where space is incredibly limited. They’re best suited for storing smaller items like folded bedding, out-of-season clothing (rolled up tightly), and shoe boxes. Don't expect to fit large suitcases or bulky blankets into a small unit; it's designed for targeted organization rather than bulk storage. 'Medium' units typically range from 1200mm wide x 600mm deep x 600mm high – a popular choice for larger bedrooms and utility rooms. This size offers considerably more flexibility, allowing you to store seasonal clothing, hobby equipment, or even small appliances. A family with two children will likely find this size provides sufficient capacity without dominating the room.
‘Large’ units frequently measure 1500mm wide x 750mm deep x 800mm high. These are best suited for larger bedrooms, home offices, or areas where maximum storage is desired. They can accommodate substantial quantities of clothing, boxes, and even larger items like camping gear or sports equipment. However, be mindful that a ‘large’ unit demands significant space – ensure there’s ample clearance around it for comfortable movement. Consider the impact on your floor area; an oversized unit crammed into a small room will invariably feel overwhelming. Finally, you'll find ‘Extra-Wide’ units pushing 1800mm or even 2000mm in width, designed to maximise storage along narrow hallways or bedrooms. These are fantastic for storing longer items like dresses and coats, but again, require careful consideration of your room dimensions.
A frequently overlooked aspect is the importance of measuring *your* space accurately before purchasing an under-bed storage unit. Don’t rely solely on the manufacturer's stated dimensions; factor in the width of any existing furniture (beds, wardrobes, etc.), the depth of the floor space available and crucially, the height of the lowest part of your skirting boards or flooring. Most UK homes have variations in floor level, so allow a few centimetres either side for installation and adjustments. It's also advisable to measure the *clear* space beneath your bed – if you need to lift the mattress regularly, consider this when selecting a unit’s height. Furthermore, check the clearance required for accessing items; a unit that extends too far into your room will be difficult to utilise effectively.
Finally, pay close attention to the terminology used by retailers. ‘Long’ doesn't necessarily mean 'deep'. Always clarify the exact depth measurement before committing to a purchase. Similarly, ‘wide’ can refer to either the overall width of the unit or the width of individual drawers. Don’t assume that all units have the same internal configurations; some might offer wider drawers than others, even if their external dimensions are similar. Carefully examine product descriptions and, if possible, request detailed diagrams before making your final decision – a little extra diligence can save you considerable frustration and ensure you select an under-bed storage unit perfectly suited to your home and needs.
The Nest & Yard editorial team
Written and reviewed by our UK-based team of home improvement and gardening writers, who research specs, pricing and customer reviews before every recommendation. Reviewed and updated on 2026-08-09.