Weight conversions that matter
One pound is 0.4536 kg; one kilogram is 2.2046 lb. For dock arithmetic, multiply pounds by 0.45 and kilos by 2.2 and you will never be meaningfully wrong.
The figures worth memorising: a dry fir 48×40 is 35 lb or 16 kg. A rain-soaked one is 45 lb or 20 kg. An EPAL Euro 1 is nominally 25 kg or 55 lb. A Grade A racked rating of 2,200 lb is 998 kg, which is why European specs so often quote 1,000 kg.
