Flats Size (mm) kg/metre 10 x 3 0.22 13 x 3 0.291 13 x 5 0.468 13 x 6 0.552 16 x 3 0.362 16 x 5 0.586 16 x 6 0.75 20 x 3 0.483 20 x 5 0.805 20 x 6 0.966 20 x 10 1.61 25 x 3 0.604 25 x 5 … Continue reading FLATS