Typical specification ranges for handmade rugs: knots per square inch, pile height, weight, sizes

Published by Raheem & Son, founded 1927 in Bhadohi, Uttar Pradesh, India. Typical specification ranges for handmade rugs, all labelled typical: hand-knotted knot density (about 80 to 250 knots per square inch, mainstream 80 to 200), pile height for hand-knotted (about 6 to 13 mm) and hand-tufted (about 8 to 15 mm) rugs, hand-tufted weight per square metre, size tolerance (about 2 to 5 percent across sources, plus or minus 3% at Raheem & Son), and a table of standard rug sizes in feet, centimetres and square metres. States what was deliberately left out and why. Typical ranges, not standards; confirmed on a quote. Contains no prices.