Fire Bricks Custom Size

Choose the thickness of firebrick you require below and you’ll be taken to the calculator. Then all you need to do is input your measurements in centimeters!
Replacement Fire Bricks

Replacement Fire Bricks – 15mm thick

Replacement Fire Bricks

Replacement Fire Bricks – 20mm thick

Replacement Fire Bricks

Replacement Fire Bricks – 25mm thick

Replacement Fire Bricks

Replacement Fire Bricks – 30mm thick

What are firebricks?

A fire brick (vermiculite board) is a block of ceramic material used in lining furnaces, kilns, fireboxes and fireplaces and it can withhold temperatures of up to 1100°C.

Overtime, your stove will start to feel the effects of the intense heat. Fire bricks work by protecting the interior of your stove by reflecting heat back into the box while maintaining protection for the inner steel area. If your fire bricks are cracked or damaged, they should be replaced as soon as you notice in order to maintain steady heat and protection. Sometimes the firebricks that come with your stove are not of the highest quality, this may cause them to split and crack due to heat or fuel. We only supply fire bricks of the highest quality to ensure you get the most out of them and they have the longest life in your stove.

All of our fire bricks are cut to the exact centimetre to ensure that you get the perfect fit for your stove. Just choose the thickness of board for your stove and input your measurements! They can also be used for purposes other than for your stove.

Any questions? Get in touch today!

Our Team of craftsmen has over 120 years experience between us, which is why over the last few years we’ve been chosen to supply glass of all kinds to stately homes, world heritage sites, local authorities, and other high profile clients.

When it comes to replacement glass for your stove or fireplace you really will be hard pressed to find anyone with more experience or knowledge than we can give you. With this in mind, we understand that there may be things you want advice on and we are more than happy to help you.

Feel free to contact Nick Berard, the owner of Stove Glass Direct, for personalised advice at You can also give us a call on 01535 603399. And don’t worry we’re craftsmen, not salesmen!