Workshop plan
Step-by-step instructions
1
Step 1
Photograph and measure the trap, shutoffs, disposal, and cabinet opening; leave a service gap around every connection.
2
Step 2
Make a cardboard template that wraps the plumbing without touching it through the full drawer travel.
3
Step 3
Build the tray from sealed plywood or plastic panels, then add a front and side rails that contain bottles.
4
Step 4
Mount full-extension slides low and level, using spacers that do not pinch supply lines.
5
Step 5
Load with light cleaning supplies, test for leaks, and remove the tray immediately if a drip appears.
Safety check
Do not move or stress plumbing. Shut off water before any connection work, keep service access clear, and consult a licensed plumber if a fitting leaks or does not match.