OSRS Construction calculator

How many oak larders, mahogany tables or Mahogany Homes contracts from your level to your goal, and what the planks come to at Grand Exchange prices. Enter your level or look yourself up, pick a target, and every training method is ranked by what an experience point costs.

Construction training methods by cost

Prices as of 2026-10-02; the calculator uses live ones.

Method	Level	XP each	Cost each	GP/XP
Beginner contract	1	865.01	1,635 gp	1.9
Novice contract	20	1,887.44	5,738 gp	3.0
Adept contract	50	3,275.58	10,888 gp	3.3
Crude wooden chair	1	58	332 gp	5.7
Wooden bookcase	4	115	664 gp	5.8
Expert contract	70	4,373.37	27,928 gp	6.4
Mythical cape (mounted)	47	370	2,763 gp	7.5
Oak chair	19	120	1,106 gp	9.2
Oak dining table	22	240	2,212 gp	9.2
Oak larder	33	480	4,424 gp	9.2
Oak door	74	600	5,530 gp	9.2
Teak garden bench	66	540	5,526 gp	10.2
Mahogany table	52	840	13,044 gp	15.5
Gnome bench	77	840	13,044 gp	15.5

What the usual goals cost

Levels	Method	How many	Cost
33 to 52	Oak larder	220	973,280 gp
52 to 77	Mahogany table	1,610	21,000,840 gp
77 to 99	Mahogany table	13,761	179,498,484 gp
70 to 99	Expert contract	2,812	78,532,242 gp

The carpenter’s outfit adds 2.5% to Construction experience. On a Mahogany Homes contract it only boosts the plank part, not the bonus for finishing. A mounted mythical cape costs only its teak planks, because the cape comes back each time you remove it.

Experience and materials from the OSRS Wiki.

All OSRS calculators and drop tables

While you’re here

Gear progression — Enter your stats and see every upgrade ranked by the damage it adds.
Slayer task odds — The chance of every task each master can give you, and what to block.
Activity randomizer — Can’t decide what to do? Put it on the wheel and let it choose.