I have 36" drawers and I used 12" pulls and they're perfect. The 9' in my opinion looked to small for the drawer. I also have like 3 or 4 different sizes of pulls all around my kitchen including right next to the 36" drawers and it looks just fine. As long as they're all the same style and color the different sizes don't matter.

Also I put a pull on my lazy susan cabinet and that looks/works fine to if you wanted to keep them all the same.

@cate erickson Thanks. I do think the 12" looks better on the 36 in drawers. Did you use knobs for uppers as I keep hearing it's fine to use different size pulls as long as you are not also using knobs. Which direction did you put a pull for your lazy susan? Thanks.

Thank you I do understand that each drawer looks better individually with the pull being 1/3 the size but it's just that I keep reading if your using knobs on the uppers keep the drawers the same size pulls or it looks to busy.

I used only pulls no knobs to keep it consistent. My lazy Susan knob is vertical.

you don't want to use handles on the uppers?

@k s, Who made that rule?!!

I used different sized pulls on my drawers and knobs on the upper cabinets, sink cabinets, narrow tray cabinet and super susan cabinet. Did the same in my previous kitchen too.

Most of this is personal preference. Myself, I don't like pulls on upper cabinets in the kitchen, that looks too busy to me. I did use them on the uppers of some built-ins in my new build, because it made sense for those and didn't look busy in a hallway cabinet. Again personal preference and those might change too, based on individual situations, like my hallway cabinets.