The quick and easy answer to the question above is no. Toilet seats do not come in a standard size. But let's look at the reasons why, and see how you can easily find a replacement for your own toilet.

Like many things in the home, your toilet will suffer a fair degree of wear and tear over the course of its life. It's hardly surprising. After all, it's something you use every day. And it's your toilet seat that takes the brunt of this regular use.

If you share your home with someone of the opposite sex or children, you probably won't appreciate how many times your toilet seat is raised and lowered over the course of a year. However, if you think of it as around 4 times a day, that's over 1,400 times your hinges will be put to work over the course of a year. So it's not a surprise that "are toilet seats a standard size?" is one of the most popular toilet-based search terms on the internet.

Standard round toilet seat

Many standard close coupled toilets come with a round shaped pan (as pictured above)

Different toilets require different seats

Modern toilets, of course, come in a range of styles. Close coupled designs, where the pan is connected closely to the cistern, are far and away the most popular, but you can also find back to wall toilets, wall hung toilets, along with the period style high level toilet.

These types of toilet can then vary greatly by shape (square, angular, round, D-shaped) and by size, with differences in toilet dimensions (both length and width) between anywhere in the region of 350mm - 500mm.

D-shaped toilet seat

D-shaped pans, like the one pictured above, are gaining popularity in UK bathrooms

So it's plain to see why there isn't a standard size toilet seat, which makes finding the right model for your toilet all the more difficult. However, help is at hand.

Finding the right toilet seats sizes

You can find a suitable seat for your toilet by following these steps:

  1. Note the shape of your toilet pan. Is it round (curving outwards from the hinges and then back inwards to form a circular edge)? Is it D-shaped (curving only inwards from the hinges to form a continuous arc)? Is it square (both sides perpendicular)? Or is it different to these?

  2. You will need to take 3 measurements from your toilet:

  • Length - Measure from the holes in your toilet to the very front edge of your toilet
  • Width - Measure the diameter from edge to edge
  • Height - Measure the distance between the holes to the cistern or wall

This will give you a shape and set of toilet dimensions to work with. Now all that's left to do is start your search. But what should you look for in a toilet seat?

Toilet seat options

Soft close

Many new toilets these days come with a soft close seat as standard, which uses a spring mechanism to ensure that the seat, along with the seat cover doesn't come down with one almighty clatter. It also helps minimise wear and tear on both the toilet pan and the seat itself.

Even though a soft close seat is a great option, they do need to be treated with care to ensure the spring doesn't get damaged. This means not forcing the seat down. If you have children, this can be easier said than done, but a soft close seat does avoid any little fingers becoming trapped.

Material

When it comes to materials, you can mainly split toilet seats into 2 categories: Plastic or wood.

Plastic seats would appear to be more popular, due to their low price, the range of shapes they can be moulded into, and a high degree of durability. Thermoplast seats are very lightweight and hard-wearing, whilst thermoset seats offer great resistance to scratches.

Wooden seats are more traditional and come available in a range of finishes and colours, adding a real warmth and charm to a bathroom.

Oak effect toilet seat

Bring some natural charm to your bathroom with a solid oak toilet seat

Hinges

To help give you the best fit for your toilet, look for adjustable hinges. Some seats also come with top fixing hinges and a handy "lift off" mechanism, which makes both installation and cleaning a breeze.

Toddler seat

If you have small children who are on their way to potty training, you might want to consider an integrated child toilet seat. This can be flipped down from the main cover as necessary, giving your little ones their very own independence.

If you are still weighing up your options, why not check out our Toilet Seat Buying Guide?

When it comes to toilet seats, the best advice is to ensure you buy your toilet from a reputable bathroom retailer, who supply a wide range of toilets and toilet seats. That way, you are pretty much guaranteed to be able to get a replacement that is specifically designed to fit your model of toilet. It may be well worth your while actually purchasing a spare, so when the time comes to replace it, you have one to hand.