How To Fit A Toilet Seat

Posted by mprice 08/08/2017 0 Comment(s) Bathrooms,

You may be attaching a new seat to your newly installed toilet, or simply looking to replace your old 'resting place' with a more up-to-date and comfortable variant – either way, we'll endeavour to explain how to do it.

There are many styles and fixing types available, but we shall start with the standard two bolt type, which are the most common. Other styles, such as back-to-wall or soft close, we shall cover later.

Standard toilet seat with 2 fixing bolts

First things first...

We shall assume you have the correct seat for your pan, if not, you'll need to get a tape measure out of your toolbox and head to the toilet!

Definitely first things first - wear protective gloves and ensure the toilet and surrounding area is clean and hygienic before starting.

There are three measurements to take:

  1. The distance between the fixing holes, measure from centre to centre. This will normally be 150-160mm on modern toilets, but this will vary by manufacturer. Many replacement seats do however offer a certain degree of adjustment.

  2. The overall width of the seat (side to side at widest point)

  3. The distance from front to back using the back marker to an imaginary line between the fixing holes.


With these measurements to hand, along with the style / shape and material required, have a look at our extensive range of seats to make your final choice.


Fitting a Toilet Seat

Tools to have ready

  • Adjustable spanner or spanner set

  • Screwdriver

  • Pliers



  1. Remove the old toilet seat Using a flat head screwdriver, remove any bolt covers that maybe in place. Using either a screwdriver or spanner, hold the upper connector and then unscrew the plastic or metal bolts from underneath the pan. This maybe easily done by hand, but if not, use a spanner or pliers, whichever the easier (sometimes it is easier to hold the lower bolts and undo using the screwdriver from above). With the nuts removed, the seat and bolts should now be free and can be lifted off.

  2. Clean – The fixing holes are virtually impossible to clean with the seat attached, so take this opportunity to thoroughly clean the whole area before fitting the new seat.

  3. Fit the brackets – This operation will effectively be the reverse of the removal. The fixing brackets often need to be connected to the seat prior to fitting to the pan, so follow the manufacturers instructions carefully to ensure they are assembled correctly. It is a good idea to loosely fit them at this stage so adjustments can easily be made to ensure a good fit on the toilet.

  4. Fit the new seat – Line up the seat and lower it on to the toilet ensuring the brackets fit cleanly in to the fixing holes. Once the seat has been correctly located, tighten the fixings to eliminate any further movement.

..and as if life couldn't get any better, there's even a handy Toilet Seat Fitting Tool to reach those 'hard to get at' fittings (surely a 'must-have' for the person that has everything)!


Save time and hassle with a toilet seat fitting tool













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