Top Construction Tips in OSRS and HM COSRS: Mastering the Skill Efficiently
Introduction
Construction is one of the fastest yet most expensive skills to train in Old School RuneScape (OSRS). Whether youโre grinding for that coveted level 99 or simply enhancing your Player-Owned House (POH), having the right strategies can save you both time and money.
In this guide, weโll cover essential Construction tips for OSRS as well as key insights on HM COSRS (High-Mid Construction OSRS) training methods, focusing on the best practices, cost-effective techniques, and useful utilities to maximize your progress.
Understanding Construction in OSRS and HM COSRS
Construction is unique because it involves building furniture and rooms inside your POH, often requiring vast quantities of planks, nails, and coins. Itโs also a skill where XP rates and cost efficiency greatly depend on your chosen training method.
HM COSRS typically refers to more efficient or high-mid level Construction methods often discussed in community forums and content, blending high XP rates with smart cost management.
Essential Construction Tips for OSRS
1. Use the Demon Butler for Maximum Efficiency
- Unlock the Demon Butler at level 50 Construction.
- He carries 26 items per trip, the highest of all servants.
- Reduces time spent banking and fetching planks.
- Use a Servantโs Moneybag filled with coins to avoid paying fees repeatedly.
2. Opt for Oak Larders or Mahogany Tables
- Oak Larders (level 33+) offer a great balance of speed and cost.
- Mahogany Tables (level 52+) provide the highest XP rates but are expensive.
- Oak Dungeon Doors (level 74+) are a cost-effective alternative with decent XP.
3. Use Boosts to Speed Up Training
- Drink Spicy Stews (orange spice) for +5 Construction boost.
- Use the Crystal Saw for +3 build-only boost.
- Combine boosts for quicker access to higher-level furniture.
4. Plan Your POH Layout for Minimal Running
- Place your build room, portal chamber, and moneybag close together.
- Reduce time spent running to the bank and back.
5. Use RuneLiteโs Menu Entry Swapper
- Enables โBuild Oak Larderโ or โBuild Mahogany Tableโ as right-click options.
- Saves time and clicks during your training sessions.
HM COSRS Construction Tips: Smart Training at Higher Levels
1. Use Mahogany Homes for Cost Recovery
- Mahogany Homes is a minigame that lets you build for NPCs in exchange for points.
- Completing contracts rewards you with planks, coins, and XP.
- Use these rewards to offset your plank costs in POH training.
2. Train with Oak Dungeon Doors for Lower Costs
- Doors require fewer planks than tables but offer solid XP.
- A great middle-ground method for HM COSRS players looking to balance cost and speed.
3. Time Your Training Sessions
- Focus on uninterrupted sessions to maximize XP per hour.
- Use the Demon Butler and moneybag to minimize downtime.
4. Track Your Plank and Nail Usage
- Keep inventory organized to avoid wasting materials.
- Use noted planks in the bank and let your Demon Butler fetch and unnote them.
Common Mistakes to Avoid
- Not using a servant or relying on manual banking.
- Forgetting to fill the Servantโs Moneybag, causing costly interruptions.
- Building unnecessary rooms or furniture that donโt contribute to efficient training.
- Ignoring Construction boosts.
- Poor POH layout increasing run time.
Summary Table: Training Methods Comparison
| Method | Level Req | XP/hr | Cost/hr (GP) | Efficiency | Best For |
|---|---|---|---|---|---|
| Oak Larders | 33 | 250,000โ400,000 | Moderate | Balanced | Beginners and intermediates |
| Mahogany Tables | 52 | 600,000โ900,000 | Very High | High XP | High-level trainers |
| Oak Dungeon Doors | 74 | 500,000โ600,000 | Moderate | Cost-effective | HM COSRS cost-conscious |
| Mahogany Homes | 52+ | Varies | Low to Moderate | Cost recovery | Supplementary training |
Conclusion
Mastering Construction in OSRS, especially in HM COSRS contexts, requires more than just raw XP grinding. Efficient methods, smart use of servants like the Demon Butler, boosts, and thoughtful POH layouts can transform what might be a costly and click-intensive grind into a manageable and even enjoyable process.
By following these tips, you can optimize your training sessions, reduce expenses, and reach 99 Construction faster.
FAQs
Q1: What is the best way to train Construction quickly?
Using the Demon Butler with Mahogany Tables provides the fastest XP rates but at a high cost. Oak Larders are a great budget-friendly alternative.
Q2: How do I reduce the cost of training Construction?
Participate in Mahogany Homes to earn plank rewards, use Oak Dungeon Doors for cheaper XP, and fill your Servantโs Moneybag to avoid paying fees.
Q3: What boosts help Construction training?
Spicy Stews (orange spice) and the Crystal Saw are the two main boosts that increase your effective Construction level while building.
Q4: Should I always use a servant when training Construction?
Yes, servants drastically reduce the time spent banking, increasing your XP per hour.
Q5: Can I train Construction without spending much money?
Training Construction inherently costs a lot, but methods like Mahogany Homes and Oak Dungeon Doors help lower the expense.
Q6: What is the Demon Butlerโs role in Construction?
The Demon Butler carries 26 items per trip and is the fastest servant, optimizing your plank fetching and banking trips.
Q7: How important is POH layout in Construction training?
Very important. A well-planned layout minimizes running distance between rooms, portals, and the moneybag, improving your training speed.
With these expert Construction tips, youโre well-equipped to tackle the skill efficiently and cost-effectively in both OSRS and HM COSRS environments!

