Special mahogany log

Special mahogany logs can be obtained by chopping down Mahogany trees.

Special mahogany logs have two uses:
 * Sell them to the Sawmill Operator for money, north-east of Varrock for 3,900 coins.
 * Exchange them for a completely free conversion of the logs in your inventory into planks.

NOTE: You cannot light Special Mahogany Logs for Firemaking experience

Special Logs
Special teak logs and Special mahogany logs can be sold to the Sawmill Operator, north-east of Varrock or exchanged for a completely free conversion of the logs in your inventory into planks.

The free conversion requires 2 of the same type of special log.

2 special teak logs can be used to convert up to 26 teak logs into teak planks saving you up to 13,000 coins.

2 special mahogany logs can be used to convert up to 26 teak logs and/or mahogany logs into teak/mahogany planks saving you up to 39,000 coins.

If you have 1 special or 1 of each, the sawmill owner will only offer to buy your special logs.

If you ask him who would buy the logs from him, the sawmill operator will say,"mister terr....".but he will not complete the name because he thinks you want to sell them to someone else for more money. As "mister Terr... " isn't a known npc, this information is sadly useless.

Drop Rates
The estimated chance of cutting a special mahogany log is close to 2%. Being random it is possible to get several per load, or go many loads without any. It appears unlikely that woodcutting level or wearing a strung rabbit foot increases the chance of obtaining a special log, despite claims to the contrary. Please add to the table to make it more accurate. Only add to the table if you have chopped 1000 or more logs.

Financial Considerations
A large part of the financial return on cutting mahogany comes through the conversion of a load of 26 Mahogany logs to Mahogany planks using 2 special logs at the Sawmill operator. Mahogany planks are in high demand for the Construction skill. The return on cutting logs is impacted significantly by the drop rates for special mahogany logs which are not well established.

With an estimated special mahogany log drop rate of 2%, out of every 100 logs you would have 2 special logs, which gives you 26 mahogany planks and 100-26-2=72 mahogany logs (if you convert 26 Mahogany logs with the 2 special mahogany logs at the sawmill, losing the 2 special logs). The current Grand exchange price for Mahogany logs is coins and Mahogany planks are  coins. Thus 100 mahogany logs (of which 2 are special) are worth 26* + 72 *  =  which is an average of  per log at current Grand exchange prices. These rates are superior to cutting Yew logs which take longer to cut and are sold for per log, albeit without the need for trips to the sawmill.

Using castle wars teleport and balloons to convert special logs to planks may not even be worth your time if you can raise money faster than that using another method. For example, crafting double nature runes or killing dragons generates more wealth per hour and raises skills. Using the lumberyard teleport scrolls could make this process quite fast, and profitable, especially with a pak yak.

When cutting logs at the Hardwood grove and banking with Rionasta using Trading sticks, each log takes 10 sticks to bank at a cost of 10 * =  per log. Further each entry to the Hardwood grove costs 100 Trading sticks. By only carrying trading sticks and wielding a hatchet, 27 logs can be harvested per trip (without a Beast of burden) at an additional cost of per log. Thus the total "tax" per log at current grand exchange rates for trading sticks is.

At level 82 woodcutting at a fairly brisk rate of entering and exiting the grove and banking with Rionasta one can harvest and bank at least 410 logs in an hour. Excluding time for sawmill trips, but subtracting out the banking and entry fees at market rates for Trading sticks, the return on mahogany log cutting in the Hardwood grove comes to per hour at a 2% drop rate. The occasional bird's nest would increase the hourly return. Higher woodcutting levels would increase the speed of harvesting and hence the hourly return. At a 2% special mahogany log drop rate, the expected return per log is coins, which can be multiplied by ones expected number of logs cut per hour to get an hourly return (excluding time for sawmill trips).

Trivia

 * In the hardwood grove in Tai Bwo Wannai, if you have at least one special mahogany log and no regular mahogany or teak logs, the game will think that you have no mahogany or teak logs and will therefore prompt you with a warning message.