illustrated in fig1 the upper edges of upstanding panels or walls 40 42 44 and 46 are provided with a continuous outwardly extending flange or rim 49 of generally uniform thickness the front wall 100 right hand wall 300 rear wall 200 left hand wall 400 and the first and second pairs of interior walls 34 46 and 44 22 are of the same height the continuous flanges 25 39 and 49 are of uniform thickness around the peripheries of trays 10 12 and 14 respectively the right cut line 1000 is located on the top surface of the pair of inner walls 44 22 while the left cut line 1100 is located on the top surface of the pair of inner walls 34 46 as referred to previously right divider 800 and left divider 900 are removably insertable into any of the opposing series of pockets 700 of trays 10 and 12 respectively as illustrated in fig1 the leakage catch basin and configurable storage unit b of fig2 is an alternate embodiment comprising only the second and third trays 12 and 14 like numbers as in fig1 are used in fig2 to illustrate the various panels the flanges or rims are designated 39 u2032 and 49 u2032 operation of the leakage catch basin and configurable storage unit is intuitive and simple upon determination of the number and width of cabinet spaces the user wishes to protect from moisture damage and or store potentially spillable articles in a cut is made along either right cut line 1000 or left cut line 1100 or both the resulting partitioned segments of the once whole leakage catch basin and configurable storage unit are inserted into each ensuing.