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What Is A Reasonable Amount Of Tile Wastage?

18 September

Whether you’ve selected natural stone tiles, such as StoneStore’s classic Italian polished Carrara marble, or one of our impressive marble imitations, whether you’re tiling a kitchen floor or bathroom walls, allowing a number of tiles for ‘wastage’ is normal for any installation, and an important consideration to be made before you purchase your tiles. But what is a reasonable allowance for ‘wastage’ for your particular installation?

The industry standard is to include an extra 10% allowance for ‘wastage’. However, if the room to be tiled is a bathroom with lots of complex forms, such as boxes which hide pipework, or feature alcoves in the shower area, then 15% is a sensible allowance.

If you’re laying floor tiles across a number of rooms and a seamless flow between the rooms is required, then it’s worth considering 15% extra if the rooms vary considerably in shape and size and include the hallway, which tends to be mis-shapen in comparison to a more uniform kitchen or dining area, therefore more cuts are required which generally means more wastage.

Also, if the tile you’re buying is end of line, clearance, or discontinued, it’s always worth buying extra as that tile, or batch of tiles, may no longer be available from the manufacturer if you need more to cover wastage.

The percentage rule is a good guide when buying over 20 square meters, but if you have a small area to tile, perhaps a cloakroom floor, and you plan to use a large format 600mm x 600mm, then buying extra by number rather than percentage is prudent. For example, if the area to be covered takes ten tiles, then ordering just one additional tile (10%) doesn’t allow for any mishaps, such as incorrect cuts. Although you may be on a tight budget, it is often a false economy not to order three extra tiles in this scenario, as it’ll be expensive to ship a single tile and completion of your project will be delayed.

How Many Tiles Do I Need For My Kitchen?

In the area to be tiled, multiply the widest width by the widest length, so if your room is 6m x 10m, you’ll need 60 square meters plus 10% allowance, equalling 66 square meters in total. Remember to include the space under any free-standing appliances too. Some people choose to tile under kitchen units from wall to wall, if the kitchen is already in place then calculate up to the legs of the floor units.

How Many Tiles Do I Need For My Bathroom?

It’s logical to calculate the quantity without considering any fixtures and features, such as windows, as tiling inside the window uses lots of tiles. The modern default size for bathroom wall tiles is 600 x 300, fixed landscape. bear in mind that often walls, particularly in old properties, can run out of line by up to an inch, so be sure to measure the top and bottom of a wall and make your calculation on the widest point.

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