Construction calculator
Every Construction action with its level and XP, how many you need for your target, and the full list of materials with where an Ironman gets each one: gathered, made, bought from a shop or dropped.
Data from the OSRS Wiki, fetched 2026-10-09. XP per hour and time estimates come from our Ironman training guide.
Skilling outfits, for example. Leave at 0 if unsure.
XP to go
13,034,431
Level 1 (0 XP) to level 99 (13,034,431 XP). Next level in 83 XP.
Best XP per action you can do now: Beginner contract (Mahogany Homes), 865.01 XP, so 15,069 actions. It isn’t always the fastest per hour.
Our training guide’s pick at level 1: Mahogany Homes (Beginner) at about 42,500 XP/hr.
Following that guide to level 99 takes roughly 113 h, counting time to gather your own supplies.
| Action | Level | XP each | Actions to target | Materials in total |
|---|---|---|---|---|
PlankSupplies | — | 29 | 449,464 | 449,464Plank |
Bagged plant 1Supplies | — | 31 | 420,466 | 420,466Bagged plant 1 |
| — | 43.5 | 299,643 | ||
Crude wooden chairPopular | — | 58 | 224,732 | 449,464Plank449,464Steel nails |
Wooden hull partsSailing | — | 72.5 | 179,786 | 898,930Plank |
Beginner contract (Mahogany Homes)Mahogany Homes | — | 865.01 | 15,069 | |
Bolt of clothSupplies | 2 (above your level) | 15 | 868,963 | 868,963Bolt of cloth |
Soft claySupplies | 3 (above your level) | 10 | 1,303,444 | 1,303,444Soft clay |
Wooden bookcasePopular | 4 (above your level) | 115 | 113,343 | 453,372Plank453,372Steel nails |
Iron barSupplies | 5 (above your level) | 10 | 1,303,444 | 1,303,444Iron bar |
Limestone brickSupplies | 5 (above your level) | 20 | 651,722 | 651,722Limestone brick |
Steel barSupplies | 7 (above your level) | 20 | 651,722 | 651,722Steel bar |
Oak hull partsSailing | 8 (above your level) | 150 | 86,897 | 434,485Oak plank |
Oak plankSupplies | 15 (above your level) | 60 | 217,241 | 217,241Oak plank |
| 19 (above your level) | 90 | 144,828 | ||
Oak chairPopular | 19 (above your level) | 120 | 108,621 | 217,242Oak plank |
Novice contract (Mahogany Homes)Mahogany Homes | 20 (above your level) | 1,887.44 | 6,906 | |
Oak dining tablePopular | 22 (above your level) | 240 | 54,311 | 217,244Oak plank |
Teak hull partsSailing | 23 (above your level) | 225 | 57,931 | 289,655Teak plank |
KegSailing | 25 (above your level) | 313 | 41,644 | 208,220Oak plank832,880Iron nails |
| 30 (above your level) | 135 | 96,552 | ||
Long boneOther | 30 (above your level) | 4,500 | 2,897 | 2,897Long bone |
Curved boneOther | 30 (above your level) | 6,750 | 1,932 | 1,932Curved bone |
Oak larderPopular | 33 (above your level) | 480 | 27,156 | 217,248Oak plank |
Salvaging stationSailing | 34 (above your level) | 372 | 35,039 | 140,156Teak plank560,624Steel nails |
Teak plankSupplies | 35 (above your level) | 90 | 144,828 | 144,828Teak plank |
Mahogany plankSupplies | 40 (above your level) | 140 | 93,104 | 93,104Mahogany plank |
Mahogany hull partsSailing | 41 (above your level) | 350 | 37,242 | 186,210Mahogany plank |
| 47 (above your level) | 210 | 62,069 | ||
Mythical capePopular | 47 (above your level) | 370 | 35,229 | 105,687Teak plank35,229Mythical cape |
Adept contract (Mahogany Homes)Mahogany Homes | 50 (above your level) | 3,275.58 | 3,980 | 45,770Teak plank1,990Steel bar |
Mahogany tablePopular | 52 (above your level) | 840 | 15,518 | 93,108Mahogany plank |
Camphor hull partsSailing | 53 (above your level) | 400 | 32,587 | 162,935Camphor plank |
| 66 (above your level) | 255 | 51,116 | ||
Teak garden benchPopular | 66 (above your level) | 540 | 24,138 | 144,828Teak plank |
Expert contract (Mahogany Homes)Mahogany Homes | 70 (above your level) | 4,373.37 | 2,981 | 37,889Mahogany plank1,491Steel bar |
Oak doorPopular | 74 (above your level) | 600 | 21,725 | 217,250Oak plank |
Ironwood hull partsSailing | 77 (above your level) | 437.5 | 29,793 | 148,965Ironwood plank |
Gnome benchPopular | 77 (above your level) | 840 | 15,518 | 93,108Mahogany plank |
| 80 (above your level) | 300 | 43,449 | ||
Rosewood hull partsSailing | 84 (above your level) | 475 | 27,441 | 137,205Rosewood plank |
| 92 (above your level) | 330 | 39,499 |
Actions, levels and XP from the OSRS Wiki calculator tables. Counts round up. XP is per action before any bonus you enter. Level 99 is 13,034,431 XP.