Steel construction (6x20 m) (120 m2)

New Steel construction Galvanized steel; top profile 50x50x2, bottom profile 50x50x2, cross braces 30x30x2, high 500, post box profile 100x100x4 high 3330 and 4170, roof braces, construction class EXC2, EN-1090-2 standard, surface protection hot-dip zinc PN-EN ISO 1461, not include Z-profile for roof Single-story farm buildings with a building area of ​​up to 150 m2 and a span of up to 6 m are, according to Polish regulations, exempt from the requirement to obtain a building permit!!!