Skill Book · Build 42.21

Knapping IV: "Schmidt Rock Hardness Testing Techniques"

in Spanish: Talla lítica IV: "Técnicas de Schmidt para la determinación de la dureza en rocas"

Item ID
Base.BookFlintKnapping4
Command
/additem "username" Base.BookFlintKnapping4
Weight
1

The numbers

Skill
Knapping
For levels
7–8
XP multiplier
×12
Pages
340

Where to find it 14

Chance that one piece of furniture has at least one, with loot set to Normal (for zombies, vehicles and bags: per zombie, per vehicle part or per bag). Your game's loot settings raise or lower it and the best places stay the same, except for the loose clutter some furniture comes with, which those settings don't touch.

In rooms

and 5 more

+4 places less likely

In stashes

  • Survivor safehouseShelves3.9%uncommon
  • Survivor safehouse (late game)Shelves3.9%uncommon
  • Survivor safehouse (mid-game)Shelves3.9%uncommon
  • Survivor stashCounter1%rare
see the stashes on the map

In vehicles

  • Mobile library · Trailer1.6%rare
  • Mail truck · Trunk0.4%very rare
  • Survivalist's vehicle · Trailer0.4%very rare

Inside bags and boxes

Made with 1

Plan what to gather →

Used in 1

Thanks to The Indie Stone for creating Project Zomboid (https://projectzomboid.com/), which made this possible. This is an unofficial fan production for non-commercial purposes made under the Indie Stone Terms.

© 2026 Vestigo