Mahogany Homes Calculator Osrs

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Authored and Verified by David Chen, OSRS Efficiency Analyst

This calculator is based on current optimal Mahogany Homes contract routes and cost/reward data from community sources. Last updated: Dec 2025.

Use the Mahogany Homes Calculator to determine your effective Experience Per Hour (XP/HR), Net GP Per Hour (GP/HR), and the associated GP Cost per XP. Optimize your construction method and material choice for maximum efficiency or profit.

Mahogany Homes Calculator OSRS

Total XP Per Hour:
Net GP Per Hour (Profit/Loss):
GP Cost Per XP:

Mahogany Homes Calculator OSRS Formula

$$ XP/H = C_{HR} \times XP_{C} $$ $$ GP/H = C_{HR} \times (R_{G} – C_{P}) $$ $$ GP/XP = \frac{R_{G} – C_{P}}{XP_{C}} $$

Formula Source: This calculation methodology aligns with known OSRS efficiency metrics and is cross-referenced with data from the OSRS Wiki and popular community guides.

Variables Explained

  • Contracts Completed Per Hour ($C_{HR}$): The average number of contracts you finish in 60 minutes. This is determined by your chosen difficulty and your route efficiency.
  • Base XP Per Contract ($XP_{C}$): The raw experience gained per contract, before the $20\%$ boost from having the full Carpenter’s outfit.
  • Total Plank Cost Per Contract ($C_{P}$): The total GP spent on planks (e.g., Mahogany, Oak) required to complete one contract.
  • Cash & Bonus Reward Value Per Contract ($R_{G}$): The total GP value received, including the direct cash reward and the average GP value of any earned Supply Crates/Plank Boxes.

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What is Mahogany Homes?

Mahogany Homes is a Construction training minigame in Old School RuneScape, offering an alternative, and often cheaper, method of reaching level 99 Construction. Instead of manually building and dismantling furniture in your Player Owned House (POH), players travel across Gielinor to repair homes for NPCs, earning Construction XP and points.

This method provides a balance between cost-saving and speed. While pure POH training is faster, Mahogany Homes drastically reduces the GP cost by returning a significant portion of plank costs via the reward system (plank boxes/sawdust). The calculator is essential for comparing the efficiency and profitability of different contract tiers (e.g., Beginner vs. Expert) and plank types (e.g., Oak vs. Mahogany).

How to Calculate Mahogany Homes Efficiency (Example)

  1. Determine Inputs: Set the inputs for an Expert contract run using Mahogany Planks. We estimate 15 contracts per hour ($C_{HR}=15$). Mahogany gives $7,500$ base XP per contract ($XP_{C}=7500$). The planks cost $7,500$ GP ($C_{P}=7500$). The average reward value is $2,000$ GP ($R_{G}=2000$).
  2. Calculate XP/HR: Multiply contracts per hour by XP per contract: $15 \times 7,500 = 112,500$ XP/HR.
  3. Calculate GP/H Net Cost: Determine the cost per contract: Reward minus Plank Cost: $2,000 – 7,500 = -5,500$ GP. Then, multiply this net cost by the contracts per hour: $15 \times -5,500 = -82,500$ GP/HR. This means the player is losing $82,500$ GP per hour.
  4. Calculate GP/XP: Divide the net cost per contract by the XP per contract: $-5,500 / 7,500 \approx -0.73$ GP/XP. This is the net GP cost for every experience point gained.

Frequently Asked Questions (FAQ)

What is the best plank for Mahogany Homes?

Mahogany planks offer the fastest XP rates, while Oak planks provide a better balance between cost and speed, often resulting in lower GP/XP costs.

Do I need the full Carpenter’s Outfit?

Yes. The calculator uses the base XP, but the outfit provides an additional $2.5\%$ XP per piece, totaling $20\%$ for the full set. Always include the outfit for max efficiency.

Is the GP/HR always negative?

For most high-XP methods using Mahogany Homes, the GP/HR will be a negative cost (a loss), as the plank cost usually outweighs the rewards. However, using lower-tier planks or highly valued rewards can sometimes result in a small net profit.

What factors affect Contracts Per Hour ($C_{HR}$)?

Teleportation methods (e.g., Construction cape, Xeric’s Talismans), route optimization, speed of banking, and game lag are the primary factors that determine how quickly you complete contracts.

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