A statute of Edgar the Peaceful set a price floor on wool by threatening both the seller and purchaser who agreed to trade a wool wey for less than 120 pence[3] (i.e., ½ pound of sterling silver per wey), but the wey itself varied over time and by location.
The wey was standardized as 14 stones of 12½ merchants' pounds each (175 lbs.
This wey was applied to lead, soap, and cheese, as well as wool.
[4] The wool wey was later figured as 2 hundredweight of 8 stone of 14 avoirdupois pounds each (224 lbs.
[6] As a measure of volume for dry commodities, it denoted roughly 40 bushels or 320 imperial gallons (1,500 litres).