Yeah, but the other guy actually cut the planks and made his servents run to the construction yard which is beyond slow. If you're only going for enough construction to get a guilded altar - I would do mahogany tables if I were you. Most of your stats are pretty high - you have enough to make overloads and you have piety. Since you already have 150m and that won't get you 95 prayer - just spend it on the 75 construction (however, keep in mind you can drink the tea for a +2 boost and a crystal saw for a +3 boost) Save some for merching - use the rest on bones. Or better yet, use the daily profit from merching on bones. Thats what i meant, he says the OP should do oak larders, just not the method said.