Weaving is done on a Loom. There is a Loom located in the Farming Shop south of Falador. To weave, take the items needed and then click on the Loom. A screen will appear asking what you would like to make. Click on the item. You can right click on the item to make 1, 5, 10 or 'x' items.
Item
Required level
Exp gained
Items needed
Cloth
10
12
4 Balls of Wool
Sack
21
38
4 Jute Fibre
Basket
36
56
6 Willow Branches *
* To get Willow Branches use secateurs with a Willow Tree, that you have planted, during it's last stage of growth before adulthood. (See Farming - Trees Preparing & Planting)
Cloth
Sack
Basket