TypeHow it fitsBest forDownside
Expandable traySpring-out wings fill the widthOdd-width drawers, rentersWing pockets are shallower
Fixed trayRigid, sized to standard drawersDrawers a standard size fitsA centimeter off means sliding
Adjustable divider railsMovable walls, no preset pocketsGadget drawers: peelers, tongs, gearCutlery does better in shaped slots
Two-tier sliding trayUpper deck slides over the lowerDeep drawers, big householdsNeeds height; upper deck hides the lower