Resume knotting with half square knots as outlined above until you have knotted 6 inches (15.2 cm).
Knots tested were the square knots, surgeon's knots, modified granny flat knots, and modified identical and nonidentical sliding knots.
To test the integrity of surgeon's knots and flat square knots using 4 different suture materials.
It's not the knots per square inch.
Wallis, the couple's pug, preened in the center of the living-room rug, made to order in Tibet, 100 knots per square inch and dyed by hand.
Most serious collectors prefer more refined "city carpets," such as Iranian Ardabil rugs, made of 100% New Zealand worsted wool and boasting 150 to 200 knots per square inch.
"A bit like thread count in bedding, the number of knots per square inch is a good indicator of the quality of a rug," says Jessie Black, an interior designer based in San Francisco, CA. "Thirty knots per square inch is rather coarse, but 290 knots per square inch is rather fine".
Evaluate the knots per square inch (KPSI).
Tie the yarn in a square knot - ½ Knot pulled tight, then another ½ knot.
You can use a square knot, a double knot that will secure the ends of the necklace together.
A variation of the square knot is the switch knot.
