Weiss is 1.6 m tall
1.6 / 1345 = .00118959107 m/px
.00118959107 x 1503 = 1.78795539033 m
1.78795539033 / 141 = .01268053468 m/px
.01268053468 x 417 = 5.2877829629 m
5.2877829629 / 27 = .19584381344 m/px
.19584381344 x 45 = 8.81297160483 m
.19584381344 x 50 = 9.79219067204 m
.19584381344 x 171 = 33.4892920984 m
Volume = l*w*h = 2890.07 m^3 = 2890070000 cm^3
Density of concrete is 2.4 g/cm^3
2890070000 x 2.4 = 6936168000 g, 6936168 kg
As its a building we assume hollowness, and since its a hangar we'll assume 90%, or 693616.8 kg, Class K