Hello everyone! I purchased a box of hardwood flooring to "try-on" in my house to see if the color would fit but I am noticing that some of the planks are different widths... the difference is tiny, only about 1mm (or 1/12 of an inch) and you cannot tell by looking at just one, but when 3 or more are put together there is a visible gap or "crack" between them.
if it were tile, this "crack" would be where the grout is.. kind of hard to explain - when one plank is down and the second 1mm wider is put next to it, once the 3rd is put in place-- it lays nicely with the 1st but forms a gap or "crack" with the 2nd. does that make sense? am I crazy or is this floor defective?
I know 5% defect is allowed, but is it normal to have planks slightly different widths? it is brazillian redwood and I am getting it from Lumber Liquidators.

Well, you did say LL, so that usually explains alot.
No, you shouldn't have gaps. NOFMA standards allow for only .005" variance (1/20th") in width, so 1/12th is obviously larger than normal. Of course, you're looking at an import product that isn't necessarily milled to that standard...they may say that it is within their proprietary standards, so you're only recourse is to decide whether you can live with it or not, and take it back if you don't like it.

One other thing to consider....it is possible that some of the variation you are seeing is due to varying moisture content from board to board. Without using a meter and seeing if all the boards are at an equal content, you can't rule it out. If anything, you may want to lay all of the boards out and let them acclimate for a few days, then look at them again.

Thats why we use straps if gluing and why you buy extra wood. Also any nailer would pull that together.

A nailer isn't going to make the board narrower
If i understand correctly, I think what the O.P. was saying is if you lay the first row of boards end to end to end and one of them is 1/12" wider than the others, when you lay your second row, you're going to have a gap between rows where that wide board is...no matter how hard you whack it with the nailer. lol
I agree, tape or a nailer will work with crooked boards, but not different face widths.

Ya just hit it harder bw. lol Better get out the measuing guage.

LL has different mills that perform their milling. When I was installing their Bellawood exclusively , I would never know what the milling was going to be like. I guess what I'm saying is if you like the specie, but have problems with the milling, you can try having them send out that specie,from a different mill. The problem is ... You pay for those "test cartons", then your stuck with them.
With LL Bellawood, if it's not milling, it's warped or twisted boards. You have to take great pains when intalling that product , to make it look good. It's a necessity to use strap clamps . Not becaue I sell them , but that product definetely got me going on the whole strap clamp thing.