Basic crafting is the process of turning raw materials into general goods. It allows a character to create any items listed under ‘adventuring gear’ on page 222 of the Player’s Handbook. The character must be able to use the item in order to create it. Adventuring gear from other sourcebooks may also be crafted, as well as parts for traps below level 5.
The amount of time to create basic goods varies, but a good general purpose rule is, if it is not specified, that the item takes one hour per gold or per pound, whichever is higher. Material costs are roughly 1/2 of the market costs.
Only characters trained in an appropriate skill/feat (religion for holy symbols, arcana for arcane implements) or, if it is unclear, an intelligence or wisdom of 12 may perform basic crafting.