Mold for concrete bench supports

A mold for a concrete bench support structure, comprising:

• a plastic closed base with a perimeter;
• a plastic continuous wall that is 0.25 inch thick or less, with an inside, an outside, a top, and a bottom having an upper and an opposing lower side, wherein the bottom is attached to the entire perimeter of the closed base and the continuous wall completely surrounds an interior volume, the interior volume in contact with the closed base and the inside of the continuous wall;
• a plurality of through holes from the inside to the outside of the continuous wall for the placement of a plurality of anchors;
• and
• a plastic continuous lip that is 0.25 inch thick or less, attached around the top of the entire wall and projecting outside of the wall, at least 0.5 inch, to stiffen the continuous wall;
• wherein the mold is one-piece;
• wherein the plastic is a low density polyethylene;
• wherein the interior volume comprises a central volume and three peninsula volumes that protrude from the central volume, the peninsula volumes comprising a front leg volume, a back leg volume, and a backrest volume;
• wherein the mold, when resting on the bottom lower side, is configured to be filled with pre-set cement such that the interior volume is filled to create a continuous cement structure through the unification of the pre-set cement in the central volume, the front leg volume, the rear leg volume, and the backrest volume;
• and
• wherein the continuous wall is perpendicular to the bottom such that cement that is formed within, set, and ultimately removed from the mold is configured to have surfaces aligning with paired surfaces from an opposing mold so that a plurality of slats can be effectively attached to the paired surfaces, through fastening to the anchors, to assemble a seat and a backrest of a bench.