Craft

(Int)
Like Knowledge, Perform, and Profession, Craft is actually a number of separate skills. You could have several Craft skills, each with its own ranks, each purchased as a separate skill.

A Craft skill is specifically focused on creating something. If nothing is created by the endeavor, it probably falls under the heading of a Profession skill.

The cost of materials will vary by item. In general, assume that the cost of materials is about 1/3 of the retail price of the item.

Check:

Each check represents 4 hours of dedicated work. The amount that you beat the DC by is the amount that is applied to the work. You can lose applied points by failing a check. The work is complete when the amount of applied points is equal to the DC of the object.See the example below.

Synergy

If you have 5 ranks in a Craft skill, you get a +2 bonus on Appraise checks related to items made with that Craft skill

Example:

Modified Craft (Smithing) Score: 6

Steel Longsword DC:15

Day One:

Roll: (12) +6 = 18
 * Work: 18 - 15 = 3
 * Total: 3/15 (4 hours)

The character has beaten the DC by 3 points and applies 3 points to the total work

Roll: (8) +6 = 14
 * Work: 14 - 15 = -1
 * Total: 2/15 (8 hours)

The character failed the check by 1 point and so removes 1 point from the total work

Day Two:

Take Ten: (10) +6 = 16
 * Work: 16 - 15 = 1
 * Total: 3/15 (4 hours)

Take Ten: (10) +6 = 16
 * Work: 16 - 15 = 1
 * Total: 4/15 (8 hours)

Day Three:

Roll: (14) +6 = 20
 * Work: 20 - 15 = 5
 * Total: 9/15 (4 hours)

Take Ten: (10) +6 = 16
 * Work: 16 - 15 = 1
 * Total: 10/15 (8 hours)

Day Four:

Roll: (2) +6 = 8
 * Work: 8 - 15 = -7
 * Total: 3/15 (4 hours)

Roll: (20) +6 = 26
 * Work: 26 - 15 = 11
 * Total: 14/15 (8 hours)

Day Five:

Take Ten: (10) +6 = 16
 * Work: 16 - 15 = 1
 * Total: 15/15 (4 hours)

The Longsword is finished on the morning of the fifth day.

Bronze Dagger DC:5

Day One:

Take Ten: (10) +6 = 16
 * Work: 16 - 5 = 11
 * Total: 11/5 (4 hours)

The Bronze Dagger is finished early in the morning of the first day.

The smith could use any extra points towards another item.

Extra: 6 (+0 = 6)
 * Work: 6 - 5 = 1
 * Total: 1/5 (4 hours)

The smith makes one Bronze Dagger and begins work on a second on the morning of the first day.