On your island use either 7 or 8 pulls on the 21 24 drawers and use 10 on the pot drawers and the pull down drawer under the sink.
Standard drawer pull sizes.
If a group of cabinet drawers are stacked on top of one another and they all have the same width but different heights use the same length cabinet pull for all drawers.
Most people will choose two or three different sizes to fulfill all their kitchen cabinet hardware needs.
Designed for use on cabinet doors and drawers capable of accepting a mounted pull.
For standard size cabinetry dimensions of 12 36 the most common pull sizes are 3 4 96mm and 128mm center to center from one screw hole to another.
All of the sizes i mentioned above so if you need to review that again.
Knobs on the doors is a good choice for a traditional or transitional kitchen.
Common cabinet hardware pull installation by size.
Decorative standard sized cabinet pulls drawer handles with decor appeal functional style.
Oversize drawers 36 or larger for larger drawers consider investing in longer length stainless steel pulls such as 6 8 10 or even 12.
The graphic below shows is a nice visual of approximately how each common size of pull will look on a cabinet drawer or door.
Based on the features of any given handle the overall length measurement may vary greatly.
3 one or two 4 one or two 96mm and 128mm.
My rule of thumb is that pulls look best when they are about 1 3 the width of the drawer.