DON'T USE LAMINATE FLOORING!!! It's inconceivable to me that homeowners scoff at laminate countertops yet will install plastic laminate flooring. Contrary to the marketing claims, it will chip, crack, and scratch (especially from dogs running on it). Most importantly it warps when exposed to water. It is a floating floor and sounds hollow and cheap when you walk on it.

Believe me, I had firsthand experience with it and had to replace it after only 2 years. If you are on a budget consider sheet vinyl or LVT (luxury vinyl tiles); they are glued down and will hold up much better to wear and tear than laminate.

Ok, rant over now!

We have older Pergo that we love and has held up very well but I am not sure if it is laminate or not.

If Pergo laminate is a newer product, then what we have is not laminate.

Laminate is a reasonable flooring instead of wood flooring when you have dogs. As with anything there are various grades within any manufacturer's line of products, so be very careful in what you select and check the warranty. Pergo is very well known but there are plenty of manufacturer's out there to select from. Some have embossed textures which help to make the flooring more realistic in appearance. Some brands have insulation already mounted on the back to minimize the more apparent hollow sound when walking on the floor.

I see you have already posted this on the Houzz Flooring Forum (link below) for further information and suggestions. Very good.

http://ths.gardenweb.com/forums/flooring

We put in Pergo XP Peruvian Mahogany in 2012. We picked it for its durability. We regret putting it in. It has ALL kinds of scuff and scratch marks. We don't own any pets and our children are grown, but visit with pets and 1 grandchild a lot. It shows every dog footprint. In hindsight I wish I would have picked a less glossy finish with a more distressed look. At the top of the photo you can see the scratches. These are all over the floor. VERY noticeable on sunny days!

There are good laminates out there, but Pergo is not one I would recommend, and never the smooth type shown in the photo above.

See Provenza laminate floors.

Also what about free lay wood look porcelain floors from BuildDirect.com? No mastic, no grout.

https://www.builddirect.com/Porcelain-Tile/-Sierra-Earth/Product