Semi Pedestal Basin Buying Guide

Semi Pedestal Basin Buying Guide
Published: 13th May 2024
Author: Alex Palmer

Selecting the right basin is a pretty big deal. In fact, it’s probably one of the most significant decisions you’ll make when it comes to the appearance and functionality of your bathroom. If you want to prevent any haunting regrets later down the line, you need to make sure you get it right.

That’s why we’ve been beavering away with a series of handy guides to help you out, comprehensively covering every type of bathroom sink. Today, we’ll be delving into the humble and versatile semi pedestal basin (or ‘semi-peds’, as the kids sometimes call them). While perhaps not as celebrated as certain other sinks, the semi pedestal basin has lot to offer in terms of style and practicality. Join us as we take a closer look at these oft-unsung heroes of bathroom design.

Just look at this gorgeous fella.

What is a Semi Pedestal Basin?

A good place to start, eh? In simple terms, a semi pedestal basin is just a wall-hung basin with a small base underneath, which creates the illusion of holding the sink up. This small base is, of course, the eponymous semi pedestal component. As well as an apparent support fixing, the semi pedestal is also a cover that serves to hide the bottle trap and any other external pipework. This creates a clean, concealed look, well suited to minimalist interiors.

Basically, this plus this equals this.

While they might sound similar, there is a difference between semi pedestal and full pedestal basins. In fact, why don't we press on and take a look at that next?

What is the Difference Between A Semi Pedestal and A Full Pedestal?

Why, it’s all in the length! Full pedestals reach all the way down to the floor, forming a supportive column for the basin to rest upon. They get their name from those old busts and statues that perch atop long columns (think Nelson in Trafalgar Square). Semi pedestals, on the other hand, are much shorter, stopping well short of the bathroom floor. That’s why they’re sometimes known as ‘half pedestals’ or ‘partial pedestals’. Some brands even refer to semi-pedestals as ‘trap covers’, further highlighting their practical nature.

Unlike their floor-standing cousins, semi pedestal basins are purely wall mounted. Both the sink and the semi pedestal are fitted to your bathroom wall via secure fixing bolts, usually supplied in the scope of delivery.

What Are The Typical Size Dimensions of a Semi Pedestal?

While each model is different, the dimensions of a semi pedestal are generally pretty consistent. The size of the basin itself can vary, but the semi pedestal component generally measures between 270-350mm in height, 250-300mm in depth, and 170-230mm in width.

As you can see, the semi pedestal part is rather diddy! This is because it usually only need to be large enough to hide a small bottle trap. Semi pedestal sinks are usually geared towards smaller bathroom interiors, hence the compact size. The one exception to this is the double semi-pedestal basin, which is essentially two normal semi-pedestal basins stuck together. This is something of a rarity, however.

The little-seen double semi pedestal basin - great for couples!

For the actual basin component, the sizing follows these general guidelines:

Basin Size
Width (mm)
Depth (mm)
200 - 400
500 - 700
400 - 500
400 - 500

What Are the Pros and Cons of a Semi Pedestal Basin?

So, that should hopefully explain what a semi pedestal basin actually is. Now let’s find out if it’s the right choice for you, shall we?


There are many positive aspects to semi pedestal basins. For starters, the wall-hung design is a great way to conserve precious floor space. Semi pedestal sinks can be used in bathrooms of any size, from larger family interiors to smaller spaces such as cloakrooms or ensuites. This versatility is a huge advantage right off the bat.

Another big plus is the ease of cleaning and maintenance. The partial pedestal makes the concealed plumbing highly accessible, while the elevated build lets you reach every inch of the surface while cleaning.

The tidy look of the semi pedestal is also a big plus. After all, many people don’t like the idea of leaving their bottle trap exposed for all the world to see. Hiding it behind an attractive semi pedestal is a great way to create a neat and seamless aesthetic.

Not a pipe in sight!

Furthermore, semi pedestal sinks come in a wide array of styles and shapes. From round to square and modern to traditional, you’re bound to find the perfect model to match your particular tastes. They also feature various tap hole options, making them compatible with both deck-mounted mixers and wall-mounted taps. Whatever you go for, you’re guaranteed a smart designer fixture that always catches the eye.

You might prefer a rectangular semi pedestal basin...

...or a more rounded model.

Finally, semi pedestal basins tend to be nice and affordable. Many excellent models fall within (and even beneath) the £150-200 price bracket, which is very agreeable indeed.


Despite the many advantages of semi pedestal basins, there are still certain reasons why you might not want one. For one thing, they’re often quite dainty and compact, with larger models being harder to come by. If you’re working with a bigger interior, you might want to opt for a larger type of basin that can make full use of your available space.

As well as the relatively diminutive size, the semi pedestal itself leaves little room for any kind of below-sink storage. If this is a priority, you’d be better off going for an all-in-one basin and vanity unit combination.

Another potential stickler is the semi pedestal itself. It’s not everyone’s cup of tea, with many favouring the more conventional wall-hung or full pedestal alternatives. Most semi pedestals are pretty similar in their shape and design, leaving little room for variety. They’re also not universal, which limits you to sticking with the same manufacturer as the basin to ensure a correct fit. This isn’t a problem if you’re buying new, but might cause a headache if you’re looking to convert your existing wall-hung basin into a semi pedestal model.

So, to summarise:


  • Helps save space
  • Concealed plumbing
  • Easy cleaning & maintenance
  • Numerous shapes and styles
  • Visually appealing with a tidy look
  • Suitable for wall-mounted or deck-mounted taps
  • Affordable


  • Usually on the smaller side - not great for large bathrooms
  • The semi pedestal might not be aesthetically appealing to everyone
  • Limited variety
  • Semi pedestals aren’t universally changeable  - usually only fit sinks manufactured by the same brand
  • Little space for under-sink storage

How High Should A Semi Pedestal Basin Be?

Again, this can vary depending on your bathroom’s size and your own personal tastes. Broadly speaking, semi pedestal basins are usually installed at a height of between 600-800mm, or about 23-32 inches from floor level. However, they can be fitted at whatever height is most suitable for their intended users. This is something to take into consideration, especially when working with spaces such as disabled bathrooms or children’s bathrooms.

How Secure Are Semi Pedestal Basins? Are They Safe?

Of course! As long as they’re installed correctly by a qualified professional, semi pedestal basins are just as secure as any other kind of bathroom sink. As mentioned, most models are supplied with the proper fixing set to ensure a sturdy, permanent fit, which means you’ve got nothing to worry about.

A minimalist modern semi pedestal basin.

Hopefully you’re a bit more clued in on the exciting world of semi pedestal basins by now. Please do check out the selection on our website for a touch of inspiration. As always, feel free to contact us or swing by our Leeds showroom for any further info.

An elegant traditional option, complete with a handy towel rail. As you can see, there are plenty of styles to choose from!