There are lots of different materials that can be used to weave the traditional rush "four triangle" pattern.
The oldest material is rush - straight from the river bed. This is the most difficult material to use, it has to be wetted and mellowed before it can be used, then it has to be twisted by hand to form a neat and strong coil. This is where the real skill comes in!
Then there is pre-twisted rush cord. This has to be soaked and mellowed too, but the twisting is already done for you, so weaving a seat is a lot quicker and a little easier. It still needs practise to master using it though.
Then the easiest material to use is paper fibre. This is made from wood pulp and is ideal for people who are new to seat weaving. It only needs to be lightly dampened before use and will quickly weave into a seat.
To buy these materials and for more information please visit Seat Weaving Supplies.