Secondary classroom is one of the room types the game uses to decide what loot appears. The game fills 4 kinds of container here from 4 loot tables. This page lists what each container can hold. Read from the Build 42 game files, November 2026.
| Item | Best share of a table |
|---|---|
| Sheet of Paper | 17% |
| Note | 17% |
| Book | 12% |
| Graph Paper | 7.7% |
| Battery | 7.7% |
| Light Bulb | 7.7% |
| Notebook | 5.6% |
| Pencil | 5.6% |
| Magazine | 5.6% |
| Paperback | 5.6% |
| Eraser | 4.5% |
| Paperclip | 4.1% |
| Twine | 4.1% |
| Magazine | 4.1% |
| Soap | 4.0% |
Share is how much of a loot table's weight the item takes, before your sandbox loot settings. Each container rolls its table several times, so a bigger share means you see it more often. 172 different items can turn up here.
Book 12%, Sheet of Paper 12%, Graph Paper 4.0%, Notebook 4.0%, Paperclip 4.0%, Pencil 4.0%, Soap 4.0%, Sponge 4.0%, Twine 4.0%, Clipboard 3.2%, and 79 more.
Note 17%, Sheet of Paper 17%, Book 5.6%, Graph Paper 5.6%, Magazine 5.6%, Notebook 5.6%, Paperback 5.6%, Pencil 5.6%, Eraser 4.5%, CD Player 2.2%, and 35 more.
Book 12%, Sheet of Paper 12%, Graph Paper 4.1%, Magazine 4.1%, Notebook 4.1%, Paperclip 4.1%, Pencil 4.1%, Twine 4.1%, Clipboard 3.3%, Eraser 3.3%, and 76 more.
Battery 7.7%, Graph Paper 7.7%, Light Bulb 7.7%, Cotton Balls 2.6%, Scrap Electronics 2.6%, Jar 2.6%, Safety Goggles 2.6%, Rubber Gloves 2.6%, Index Card 2.6%, Jar Lid 2.6%, and 47 more.
Book 12%, Sheet of Paper 12%, Graph Paper 4.1%, Magazine 4.1%, Notebook 4.1%, Paperclip 4.1%, Pencil 4.1%, Twine 4.1%, Clipboard 3.3%, Eraser 3.3%, and 76 more.
Find this kind of building on the interactive map. All rooms: loot tables by room. Town by town: loot locations.
The most likely finds are Sheet of Paper, Note, Book, Graph Paper, Battery. 172 different items are possible.
Cupboard, Schooldesk, Shelves, Shelves.
Loot tables, weights and room assignments are read from the Build 42 game data, as catalogued by the PZFans craft table. The grouping and wording are ours. Your game is the final word: if it disagrees with us, tell us and we will fix the page.