Laminate Flooring Tongue and Groove Issues.

So I'm trying to install laminate flooring in a bedroom. I've done everything as directed but by the 4th row they stop locking to place. I've tried using a block and hammer but that doesn't seem to do anything, and if it does it leaves large gaps longways. I think some of the planks are damaged, but even when I try to use planks from the box and the same thing happens. The 5th row also seems to slide underneath the 4th row when I use the block and hammer.

I'm considering using laminate floor glue to keep them in place since they don't seem to lock into place anymore. I'm an amateur and this is the first time I've tried to lay flooring, so any advice is appreciated.



Here's a bad picture that maybe might help.

 

Welcome to the forums! Your floor is a prime example of why I don't like laminate flooring. The lesser expensive the flooring is, the worse fit you receive. Gluing the joints won't help if they don't fit in the first place. Laminate flooring is nothing more than MDF with a picture of wood on the surface, coated with aluminum oxide. Too bad you can't change your choice to a 1/2" or better click lock engineered flooring. Your satisfaction factor would go through the roof.

 

I suspect that there is junk in the groove or the tongue is malformed to some extent, doesn't take a lot to foul things up. Looks like some fuzz along the open groove in the picture provided. Inspect each piece before install to make sure everything is clear and no burrs are present. Also look/sight down the edge of the board to make sure they are straight. I use a long metal ruler and a lazer beam to make sure that I am dead straight on each row.

 

Do not try and just set them in place with one motion.
Set it in place and slowly lift it up and down getting it closer to the subfloor each time.
That wiggles it into place.
Sure looks like trash on the floor where that closest piece is in the picture.
If your trying to use some $1.00 a ft. flooring it's to be expected.
Did you leave it in the room to be installed laying flat for 48 hours before installing?
Is there a pad under it?