We used varying widths and lengths of our walnut floors.

Though soft wood we used random width everywhere except kit. They are 12 - 20 inch planks. Kit we used all 12 inch.
The pros are beauty and are definitely more period.
The cons, cost not only to buy but laying also. Once you start the length of a rm with a specific size you have to follow with that size the length. Also you don't want two of the same sizes next to each other. So labor costs were higher.

There were random-width maple floors in our house when we moved in. They were in bad shape, so we replaced them with slate. Here are a couple photos I took just before the flooring was removed. Sorry for the poor quality; I had to "photoshop" them quite a bit.

UGH. I am so bummed out. The 5" in walnut from somerset is on back order for 3 months! So now I have to decide if I want to go with all 3" or find another floor.

Well, I did go with the 3" and it finally arrived and is being installed. Yay!

boopadaboo, Your floors are gorgeous! Are you glad you got the 3" width? I am going back and forth or a 3" or 5" width plank for my townhouse. It is starting to look like both are beautiful based on pics.

We were considering mixing 3" and 5", but DH was concerned about differences in manufacturing tolerances not allowing the tongues and grooves to fit together as well as all one width/lot. So we did what installer called "herringbone" pattern but I call it "picture frame". It's a rectangular spiral starting at the walls and ending in the center. Of course, now I've covered it with a rug and furniture, but it would be great in a more open room.

Hard to see the whole floor, but here you can see the edges of the main floor. The bottom of the stairs is the same pattern on a smaller scale.

Ajsmama, What wood species and stain is your floor. I love the wood grain, color variation and how it looks. Boopadaboo, Yes, I would love to see updated pics. But the 3.25" does look nice. hank you!

Your floors look great! We did 3" for our house as well. I often wish we'd gone with a darker stain...DH wanted a bit lighter so we settled on a honey tone. I just LOVE the tone of your floors.

We just had 3 1/4" Brazilian Cherry from Bellawood (Lumber Liquidators) installed a month ago. This is the natural color - no stain. It is a bit yellow/brown, another lot might be more reddish. It will get darker as it ages, but so far we haven't noticed. We put the rug and furniture down 2 weeks ago, put shades up at the same time so have had no color change between what's covered and what's exposed that I can tell - check back in a year!

ajsmama, I just love your Brazilian Cherry floors and that exact color but I guess they will get darker. I wonder if my home office will not get real dark either since I do not have a lot of light. I just keep falling in love with pics of Brazilian Cherry but the darker samples I have in my house are a bit dark for my townhouse while the lighter samples I love. Your floors do look great and I always love the look of Bellawood floors. Thanks for sharing.