# Calculator:Construction/Materials

## Materials

This calculator calculates the cost per experience for each material used in Construction based on the current Grand Exchange prices.

Material Level XP GE Cost Cost/XP
Plank 1 30.5 243 7.97
Bolt of cloth 2 15 867 57.8
Soft clay 3 10 219 21.9
Iron bar 5 10 202 20.2
Limestone brick 5 20 146 7.3
Steel bar 7 20 454 22.7
Oak plank 15 60 424 7.07
Teak plank 35 90 814 9.04
Mahogany plank 40 140 2,058 14.7

Logs GE Cost XP Sawmill Costs Cost/XP[1] Cost/XP (GE)[2]
Logs 49 30.5 100 3.28 4.89
Oak logs 72 60 250 4.17 5.37
Teak logs 207 90 500 5.56 7.86
Mahogany logs 398 140 1,500 10.71 13.56
1. ^ Cost/XP assumes that the logs are obtained from drops or woodcutting.
2. ^ Cost/XP includes the costs of logs obtained from the Grand Exchange.

## Servant costs

Servant
level
Payment Sawmill Max capacity Cost per item Cost per trip [1] Trip Time Maximum cost per hour
Rick 20 500 No 6 items 10.42 62.5 60s 3,750
Maid 25 1,000 No 10 items 12.5 125 30s 15,000
Cook 30 3,000 Yes 16 items 23.44 375 17s 79,411.76
Butler 40 5,000 Yes 20 items 31.25 625 12s 187,500
Demon butler 50 10,000 Yes 26 items 48.08 1,250 7s 642,857.14
1. ^ Assumes the servant carries the maximum number of items they can hold per trip

### Fetching planks

This calculator calculates the cost per experience for each type of plank used in Construction if a servant is used to fetch the planks from the bank.

Material XP Plank Cost Cook Butler Demon butler
Cost Cost/XP Cost Cost/XP Cost Cost/XP
Plank 29 243 266.44 9.19 274.25 9.46 291.08 10.04
Oak plank 60 424 447.44 7.46 455.25 7.59 472.08 7.87
Teak plank 90 814 837.44 9.3 845.25 9.39 862.08 9.58
Mahogany plank 140 2,058 2,081.44 14.87 2,089.25 14.92 2,106.08 15.04

### Converting logs to planks

This calculator calculates the cost per experience for each type of plank if the servant is used to convert the logs to plank.

• The calculator assumes that the servant takes two trips to convert each batch of logs.
• One trip to retrieve the logs from the bank
• One trip to convert the logs to planks at the Sawmill

Note: Only the Cook, Butler, and Demon butler are able to make trips to the Sawmill.

Material XP Log Cost Cook Butler Demon butler
Cost Cost/XP Cost Cost/XP Cost Cost/XP
Logs 29 49 172.44 5.95 180.25 6.22 197.08 6.8
Oak logs 60 72 345.44 5.76 353.25 5.89 370.08 6.17
Teak logs 90 207 730.44 8.12 738.25 8.2 755.08 8.39
Mahogany logs 140 398 1,921.44 13.72 1,929.25 13.78 1,946.08 13.9