Brick->Isolation->11.5′ GT-ECOT11.5 11.5′ Eco Therm Brick Dimensions (cm): 19.7×11.5×50.0 Weight (kg/piece): 9.00 Wall thicknes 11.5cm:Pieces/m2: 9 1m2 Weight/m2: 81 1m3 Weight/m3: 783 Thermal Conductivityi (λ) : 0.320