# Tile/Paver interlocked design patterns -dimensions do not add -what am I missing?

Take this pattern for example, the three pieces circled there won't align at the edges if you want to maintain the same gap between the tiles/pavers.
For he horizontal 6x12 the width is 12 +2x1/4 gaps at each end =12.5"
The two pieces below it have three gaps there so the width is 6+6+3x1/4=12.75"

What am I missing ?

• Are the tile exact 6x12 or nominal size like a 2x4 stud? Bet the tile size takes the gaps in mind. Aug 12, 2022 at 17:31
• found the design pattern here digitalassets.daltile.com/content/dam/Daltile/website/resources/… Aug 12, 2022 at 17:32
• It looks like they use nominal sizes(as with most construction material). The actual tile size is probably closer to 5 7/8(1/8 plus 1/8 equals 1/4 inch gap) than 6 inch. Aug 12, 2022 at 17:41
• even if it is I do not see that difference disappearing and it amplifies as you go east west in the picture. I mean the 12" wide tile is not 12" either so ...the same problem different dimensions Aug 12, 2022 at 17:44
• I am just going by guessing here and to be sure would have to measure the tiles, but imagine the tiles are sized so that pattern works to give straight lines. Just because a label says 6x12 does not mean it will measure 6x12, might be 5 7/8 x 12 1/8(whatever). Imagine if you go to that site, they might have a page with actual sizes. Aug 12, 2022 at 18:02