The can good organizers I found on line were metal and didn't fit the exact opening I needed. I built my own for much less than the metal ones (which were $36 each!). With this plan, you can build up to four of the size I made for under $36.
See how they just blend into the cabinet and look like they are built in it?
Here is the process.
Step one: Cut the sides and the ledges.
Step two: Attach pieces to the walls of the unit.
Step three: Set the lauan onto the ledgers.
See? I told you it was easy! I drew up a sketch of the size I used for my 12" opening with a cabinet depth of 11.5" (if you have doors, it will be a depth of 10.5-10.75"). The height of my can good holders are 11". Again, the plan can be adjusted to any size space, but I think if you go past three cans wide, you may want to use something more sturdy than the lauan. Additionally, if you make the unit taller and add shelves, make certain the cans will fit thru the opening, don't just measure with the can in place on the shelf.
Cut list for 1 can good holder:
2 - 11"tall x 11.5"deep walls
(the melamine is 11.75" deep, I had to trim mine down) If your doors are on your cabinets, your cuts will probably be between 10.5" and 10.75"
6 - 1x2" 10.5" strips
2 - 10.5x10.75" lauan cut for the shelf
If your doors are on your cabinets, your cuts will probably by between 9.75" and 10"
I used 1.25" finish nails, but you can use screws if you prefer.
Wood glue, wood filler, etc.
Cut 6 equal size 1x2 strips. 2 per ledge, one for the back support.
The size of the opening subtract the width of the melamine walls (.75x2=1.5").
My opening was 12" and then I subtracted the 1.5" (for walls).
Nail the bottom 1x2 to the end of the upright 1x2 as shown above to create the front ledge.
Flip the ledge over and attach the ledge to the front (finished) edge of the melamine. Make sure the bottom ledge is flush with the front and the bottom of the wall.
Measure down 5.5" (halfway point) from the top and mark the edge of the wall. Attach the top ledge to the wall keeping the front of the ledge flush with the side wall front edge.
Find your center point again (5.5") and measure up toward the top .75" to create a bit of a roll for the cans to come forward when you remove one. Do the same for the bottom. Measure .75 up from the bottom and mark.
Attach the back supports at the marks you made in the last step.
Attach second wall and screw or nail supports and ledges. Once all the 1x2s are in place and secure, the lauan pieces will fit in place and stay with the weight of the cans. You can add glue to secure them, your preference. Then touch up the nail holes and slide into place.
I hope this gave you a helpful way to store your can goods.
Let me know if you have any questions.