Metal Skin Options STEEL Finish 26 ga (0.41 mm) stucco embossed, white 20 ga (0.86 mm) smooth, white 16 ga (1.42 mm) smooth, painted, choice of colour 26 ga (0.48 mm) 304 stainless steel #4 ALUMINIUM Finish 24 ga (0.60 mm) stucco embossed, whiteor metallic grey 16 ga (1.30 mm) smooth, clear anodised