# What's the best way to lay tile in a straight line

I'm about to lay porcelain tile over backerboard in my kitchen. There are several entrances in the kitchen, and several points of visual reference that will cause even a slightly skewed line to be very, very evident.

What's the best way ensure that my first few rows form a straight line as I lay them? I don't want to lay an entire row, step back, and realize it started skewing halfway up the row.

I've tried laying out dry tiles until satisfied and snapping a chalk line along the edges in the past...but this gets covered up by the thinset very easily if I'm not painstakingly careful.

Are there any strategies or methods to make sure you're keeping a straight line as you lay a row of tile?

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Get Mike Holmes to eyeball it for you. :) – BMitch May 23 '12 at 22:18
I'd be terrified of what would happen if he decided my walls weren't square :o – dolphy May 25 '12 at 17:56

Use a laser level to project a level line across the wall. Something like this is self leveling.

This won't work if you need to line them up to a non-level reference. In that case you can use a simple laser line (which is much cheaper than the self leveling models).

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Tiling the floor, but the same concept applies. A cheap laser line projected just fine across the kitchen, and showed up very well against white thinset. – dolphy May 25 '12 at 16:15

The best way is using the 3,4,5 or 6,8,10 method. Makes 2 perfectly straight lines of 90 degrees..

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This only verifies what you have done is square, it doesn't help you put the tiles down square – Steven May 21 '15 at 23:52