Providing consistent temperature control, TKO ThermalWeight impactable dock door has 4 in. thick, moisture-resistant, closed-cell foam core panel with polymer interior facing. Full height Impact-A-Track guide, retractable plungers that let door release from opening upon impact, and double-loop side seal also minimize damage. Door releases from track once impacted and is reset by pulling plunger cable or door handles to move panels back onto track.