Using the price of 20 cents per log and 5 cents per plank, the price of other wood products is determined. I found these mistakes though: Fence 15 cents Stair 15 cents Ladder 15 cents To have these prices in line with the 20 cent logs, they should be lowered to: Fence 8 cents Stairs 7 cents Ladder 5 cents Here is a list of the items. The format is: item name; item id; suggested price oak fence; 85; 8 cents spruce fence; 188; 8 cents birch fence; 189; 8 cents acacia fence; 191; 8 cents dark oak fence; 192; 8 cents jungle fence; 190; 8 cents oak stairs; 53; 7 cents spruce stairs; 134; 7 cents birch stairs; 135; 7 cents acacia stairs; 163; 7 cents dark oak stairs; 164; 7 cents jungle stairs; 136; 7 cents ladder; 65; 5 cents Here is how I came at these numbers: it takes 5 planks to make fences (4 planks and 2 sticks... 2 sticks = 1 plank). That is 25 cents for 3 fences. 25/3 = 8.333. Round down to 8 cents each. it takes 6 planks to make stairs. That is 30 cents for 4 stairs. 30/4 = 7.5. Round down to 7 cents each. it takes 3.5 planks to make ladders (2 sticks = 1 plank). That is 17.5 cents for 3 ladders. Round down to 5 cents each.