40mm Insulated Sectional Garage Door with 48kg/m³ Polyurethane Core for Residential Garages Product Overview Our 40mm insulated sectional garage door combines a polyurethane foam core, durable coated steel or aluminum panels, and a balanced lifting system to provide a practical, thermally efficient solution for residential garages and building projects. Key Features 40mm Polyurethane Insulated Panels Polyurethane foam core with density of 48 ± 2 kg/m³ Reduces heat transfer