| Structure of a single-level BOM |  |
| The following example shows a single-level bill of material.
Manufactured Item: Bicycle
Position | Item | Description | Quantity
10 / 1 | B | Saddle | 1
20 / 1 | C | Frame | 1
30 / 1 | D | Wheel | 2
A | Manufactured Item Bicycle
B | Purchased Part Saddle
C | Purchased Part Frame
D | Manufactured Part Wheel
The wheel is in turn composed of components (spokes, a hub), but these are not shown on the single-level BOM. Related topics Structure of a multilevel BOM Structure of a summarized BOM |