The Constructional Hearth

The Constructional Hearth is an area of fireproof material (usually concrete) in a wooden floored house that should be flush with the floorboards around where the fire is to be fitted.

If this has been removed for some reason and you are intending to burn solid fuel such as coal or logs it must be adequately replaced before starting to fit the Fireplace.

The constructional hearth is there to prevent the floorboard joists extending beneath the fire and catching fire.

A constructional hearth will usually consist of fireproof material at least 6 inch deep, around 48 inch wide and extending out approximately 18 inch.

On top of this constructional hearth sits the decorative or superimposed hearth which can be made from stone, slate or ceramic tiles.

We can supply decorative Hearths in a variety of styles and materials for gas or solid fuel use.

Individual Hearth Tiles Individual Hearth Tiles are available in various finishes and shapes.

Our Standard Sizes

A Standard Size Hearth is 54" x 15" x2" thick with or without a kick (a tongue extending back) but all other sizes are available.

What Hearth Shapes are Available?

The standard hearth shape is rectangular (a flat back hearth). These flat back hearths are for use when the fireplace opening is level or just in front of the wall line (the front of the chimney breast).


Kicks or tongues accomodate fireplaces where the fireplace opening steps back behing the wall line of the chimney breast.

Cut Outs

A cut out is required when the fireplace system is fixed in the floor and is forward of the wall line e.g. Baxi Burnall and similar systems.

Back Hearths

if you have a large open fireplace or "Inglenook Fireplace" we can supply a separate Back Hearth with our stone hearths or incorporate it into a one piece tiled hearth as long as the size is reasonable.

Fireplace Hearth Sizes

There are strict regulations governing the size of a fireplace hearth.

For a Gas Fire the Hearth must be 15" in front of the flame and 2" thick.

For Solid Fuel Fires the Hearth can be flush with the floor and less than 15" deep provided there is a fixed fender, otherwise it must be 15" in front of the fire.

For a Solid Fuel Stove the Hearth must be at least 12" in front of the opening door of the stove.

Once the regulations are complied with the size and shape of your hearth is down to aesthetics.

If you have exposed floorboards then the hearth should fully cover the constructional hearth to avoid seeing the concrete. If your fireplace has a mantel then the hearth size will vary depending on whether the mantel stands on the hearth or the hearth sits between the mantel legs