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First, you need to assume that the tiles are 12 inches by 12 inches - rather than 12 cm by 12 cm or some other measure. This assumption is required because the question does not specify the measurement units for the tiles.

Then, each tile is 1 sq foot. So, if you wish to cover 345 sq ft, you would require a minimum of 345 tiles.

Of course, if the units of measurement for the tiles were something else you would need a different number of tiles.

That is the mathematical answer. In real life, the number of tiles will also depend on how "well-behaved" the area is and on your skill level. If the area is rectangular the area is well-behaved. If there are many curves or cut-outs, it is not. The more curved or cut-outs you have, the more tiles will need cutting. And unless all these offcuts can be used, you will require extra tiles.

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11y ago
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Q: How many 12x12 tiles needed for 345 sq ft?
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