24"d x 42"h x 96"w
All 2x4's with 3/4" 4x8 particle board ripped to 25 1/2" wide allowing for overhang.
Added 'L' bracket and 2x4x96" for back lip. I realize it isn't a kitchen countertop, seems I'm always dropping stuff between the bench and wall.
Considered adding shelves to the left end...