The following product structure tree is for a step stool:

A company that assembles step stools wants to ship 110 units at the beginning of week 4, 140 units at the beginning of week 5, and 200 units at the beginning of week 7. A scheduled receipt of 100 top boards will arrive at the beginning of week 4. Additional information on lead times for assembly and purchase ofcomponents and on-hand inventories is given in the following table:

Prepare a material requirements plan using lot-for-lot ordering.

Step Stool Side Board Top Board (1) Dowels (6) Assembly (1) Side Longitudinal Lath (1) Wedges (2) Boards (2) Item Lead time (in weeks) On-hand inventory Step stool Top board Dowels Side board assembly Side boards Wedges Longitudinal lath 10 20 300 20 1 2