A ply.
Yarn that is a single strand is called single-ply or one-ply.
It is Plies.
Yes, DK weight (also called double knitting) is 8 ply yarn
Commercial ply is stronger than normal ply. Waterproofed ply is waterproofed and commercial ply is stronger but not necessarily waterproof.
it's called stupid people
Ply Board is a Board made out of Ply
Yes. A ply is a layer so 2 ply is double as strong as 1 ply
The load range indicates the ply rating of the tire or the number of plys under the tread. A = 2 ply B = 4 ply C = 6 ply D = 8 ply E = 10 ply F = 12 ply G = 14 ply H = 16 ply J = 18 ply L = 20 ply M = 22 ply N = 24 ply This has a direct relation to the Load Index which tells you the weight the tire can carry. The more plys the more weight the tire can carry.
it depends on the ply. such as two ply or one ply.
The wood that flexible is called Flex ply wood - i think.
the plural of ply is plies. As in "she plies the drink on him".