You work for a landscaping company. You need four poles and 2 cubic yards of mul

Question

You work for a landscaping company.

You need four poles and 2 cubic yards of mulch for every tree that is planted.

Calculate the Material Requirements Plan below.

The beginning inventory for each item has been given.

Week

Beg. Inv.

1

2

3

4

5

6

7

8

Quantity

72

65

30

64

Tree

Lead Time = 1 wk

Lot for Lot

Gross Requirements

Scheduled Receipts

Projected On-Hand

2

Net Requirements

Planned Order Receipts

Planned Order Releases

Poles

Lead Time = 1 wk

Lot Size of 12

Gross Requirements

Scheduled Receipts

Projected On-Hand

14

Net Requirements

Planned Order Receipts

Planned Order Releases

Mulch

(in cubic yards)

Lead Time = 1 wk

Lot-Size of 9

Gross Requirements

Scheduled Receipts

Projected On-Hand

9

Net Requirements

Planned Order Receipts

Planned Order Releases

Week

Beg. Inv.

1

2

3

4

5

6

7

8

Quantity

72

65

30

64

Tree

Lead Time = 1 wk

Lot for Lot

Gross Requirements

Scheduled Receipts

Projected On-Hand

2

Net Requirements

Planned Order Receipts

Planned Order Releases

Poles

Lead Time = 1 wk

Lot Size of 12

Gross Requirements

Scheduled Receipts

Projected On-Hand

14

Net Requirements

Planned Order Receipts

Planned Order Releases

Mulch

(in cubic yards)

Lead Time = 1 wk

Lot-Size of 9

Gross Requirements

Scheduled Receipts

Projected On-Hand

9

Net Requirements

Planned Order Receipts

Planned Order Releases

Explanation / Answer

Note that for Poles and Mulch, the PORs are multiples of 12 and 9 respectively just above the Net requirement.

Beg. Inv. 1 2 3 4 5 6 7 8 Quantity 72 65 30 64 Tree Gross Requirements 72 65 0 30 0 64 Scheduled Receipts 0 0 0 0 0 0 0 0 Projected On-Hand 2 2 2 0 0 0 0 0 0 Lead Time = 1 wk Net Requirements 0 0 70 65 0 30 0 64 Planned Order Receipts 0 0 70 65 0 30 0 64 Lot for Lot Planned Order Releases 0 70 65 0 30 0 64 0 Poles Gross Requirements 0 280 260 0 120 0 256 0 Scheduled Receipts 0 0 0 0 0 0 0 0 Projected On-Hand 14 14 10 2 2 2 2 10 10 Lead Time = 1 wk Net Requirements 0 266 250 0 118 0 254 0 Planned Order Receipts 0 276 252 0 120 0 264 0 Lot Size of 12 Planned Order Releases 276 252 0 120 0 264 0 0 Mulch Gross Requirements 0 140 130 0 60 0 128 0 Scheduled Receipts 0 0 0 0 0 0 0 0 Projected On-Hand 9 9 4 9 9 3 3 1 1 Lead Time = 1 wk Net Requirements 0 131 126 0 51 0 125 0 Planned Order Receipts 0 135 135 0 54 0 126 0 Lot-Size of 9 Planned Order Releases 135 135 0 54 0 126 0 0

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