Modular box assembly

A box assembly comprising:

• a box defining a box cavity within the box, the box comprising a plurality of side panels and a bottom panel, the plurality of side panels defining an opening to the box cavity positioned opposite from the bottom panel;
• a first liner disposed within the box cavity, the first liner defining a first end and a second end, the first end disposed opposite from the second end, the first liner comprising a first insulation batt, the first insulation batt extending continuously from the first end to the second end, the first insulation batt defining an inner surface and an outer surface, the first insulation batt defining a thickness between the inner surface and the outer surface, the thickness being constant from the first end to the second end when the first insulation batt is positioned in an unfolded configuration, a first bend line and a second bend line extending through the first insulation batt, the first liner folded about the first bend line and the second bend line into a C-shape, the first liner defining a first side panel, a second side panel, and a center panel, the first bend line defined between the first side panel and the center panel, the second bend line defined between the second side panel and the center panel, the first side panel covering the opening, the second side panel covering the bottom panel;
• and
• a second liner disposed within the box cavity, the second liner defining a third end and a fourth end, the second liner comprising a second insulation batt encapsulated between a first sheet and a second sheet by a border, the border coupling the first sheet to the second sheet, the border extending at least partially around the second insulation batt, a first portion of the border extending outwards from the third end and away from the second insulation batt, a second portion of the border extending outwards from the fourth end and away from the second insulation batt, the first portion of the border and the second portion of the border positioned in contact with the center panel of the first liner, a third bend line and a fourth bend line extending through the second insulation batt, the second liner folded about the third bend line and the fourth bend line into the C-shape, the second liner fitting together with the first liner to define an inner insulated cavity between the first liner and the second liner;
• and
• wherein the first insulation batt comprises a repulpable insulation material formed of a mixture of cellulose fiber and between about 2% and about 25% thermoplastic binder fiber distributed substantially randomly within the cellulose fiber, the thermoplastic binder being adhered to the cellulose fiber;
• and
• wherein subjecting the repulpable insulation material to a repulpability test produces greater than 85% fiber yield.