# Construction

### Custom Content and Boosts

* Elder Plank - Made with `/activities plank_make` using Elder Logs, base cost = 8.5k (strongly advised to use Demon Butler unless using speed 5)
* Elder Table - Made at 105 Construction with Elder Planks
* Ancient Rejuvenation Pool - Built at 105 construction using 500 brews, 150 restores, 100 stams, 200 prayer pots, 30 elder planks, and 20 marble blocks. It must be built on top of an ornate rejuvenation pool, and it provides a boost to [QBD](/bso-custom-killables/demi-bosses/queen-black-dragon.md#boosts), Corp, [Malygos](/bso-custom-killables/demi-bosses/malygos.md#boosts), and [Nihiliz](/bso-custom-killables/demi-bosses/nihiliz.md#boosts).
* [Scroll of proficiency](/skills/dungeoneering-training/dg-rewards.md#buyable-boosts-utility) - 15% of planks saved in construction
* [Construction Master Cape](/custom-items/equippables.md#master-capes) - Hatches Nursery Eggs at 2x Speed
* [Drygore Saw](/skills/invention.md#inventions) - 40% Speed boost to `/build`
* [Baby yaga house](/custom-items/pets.md#meme-pets-and-no-perk-pets) - Perkless custom pet

### Optimal Gear Setup

Carpenter's helmet, Carpenter's shirt, Carpenter's trousers, Carpenter's boots, Construction master cape

### Methods

<table><thead><tr><th>Method</th><th>Xp / Hr</th><th data-hidden></th></tr></thead><tbody><tr><td>Elder Table</td><td>15,633,221</td><td></td></tr></tbody></table>

**n.b.** you can increase sawmill speed with `/activities plank_make action:Sawmill type:[Plank] speed:[x]` at an additional cost. The sawmill charges 2x the base cost and an additional increase for higher speeds

1x speed - 2x cost

2x speed - 3.46x cost

3x speed - 5.2x cost

4x speed - 7.6x cost

5x speed - 10.6x cost


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://bso-wiki.oldschool.gg/skills/construction.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.