Tall White Cabinet w/ 7-9 drawers that fit 12x12 paper?

IKEA makes a 9 drawer Alex unit that should work I think

Have you checked Michaels? They have several sizes of white storage cubes and drawer units.

ugh - I'm sorry. I looked at the measurements on the website but guess I saw the exterior dimensions

You could get 2 of the wide Ikea Alex drawers and leave the wheels off and stack them on top of each other. Or they could go side-by-side if you have the floor space. The drawers are larger than 12 x 12, but I think there's 6 in 1 unit, that's why I suggested 2.

www.ikea.com/us/en/p/alex-drawer-unit-on-casters-white-80485423/

Consistent with your existing furniture, consider a 1x4 cube Ikea Kallax unit + Ikea Kallax Insert with 4 shelves for paper &/or Insert with 1 shelf, Insert with 2 drawers, Insert for bottles (with clear narrow fridge bins to store twine, washi, & other embellishments), or other insert options for embellishments. HTH & you find your ideal solution. 

Here is the shelf. I hope it helps.

If you don't need it to look polished I use these in my craft room closet.
www.ikea.com/us/en/p/ivar-shelf-unit-pine-s39407070/

I took off the wheels from an iris rolling organizer and put the whole thing on the shelf. I like that the organizer makes it so that I can take out one iris case with out having to move unstack others. I have too many and store the others 3 high and 2 across on the shelf. There are different heights and widths so pick the one that fits your closet. I choose the maximum height, dept and width that would fit in my closet (took out all the builder grade shelves/poles). It is so much more functional.

It would really bother me to have them hanging over the edge if I was buying something specifically to store the iris containers.

justlisa7 We have a closet we did this with, took the doors off and have a shelf with a desk surface. Love it, it looks especially sharp because we used a slightly darker paint color in there and with the white molding around the door it makes it stand out.

If you have any questions about the utilitarian pine shelves let me know. If you don’t have an Ikea near you, look for a Container Store to see it in person. These are the shelves that hold their inventory throughout the store. They used to sell it (called Skandia) that’s where I purchased it. But they no longer do. It looks exactly like the IKEA product so I’m wondering if the manufacturer is the same.

I currently have it in my craft room, it used to be in our huge office, purchased most of it between 1999 & 2003. It’s still in excellent condition, except for my desktop. (Though it would be a super easy fix to sand and give a protective coat). Very versatile and easy to change around to meet my needs. However, it is pine which is soft so I have a few dings especially on my desktop. Not terrible, but if that kind of thing bothers you I might steer clear. Also, when purchased a beautiful white pine, but as it’s aged and been exposed to light it has darkened and yellowed. Unevenly in circumstances where something was blocking it for a good amount of time.

Anyway, I have tons of experience with it so please feel free to contact with with specific questions!