Fencing pins range between 1.2 and 1.4 metres in length. 1.4m is the standard size and should be suitable for most purposes, including use with heavy duty plastic barrier fencing which is above 1m in height.
Up to 1.37m is suitable for light use, with plastic or mesh fencing of up to 1m in height and weighing no more than 7kg.
Each standard steel pin weighs just 1.1kg. This is almost the same as a standard bag of sugar!