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Oct 27 · 42.22 pre-release: ladders and crowbar break-insOct 23 · First-person mods are not officially supportedOct 21 · The Indie Stone on Java mods: download responsiblySep 28 · Build 42.21 Stable: zombie duplication fixesAug 26 · Security fixes on every branchAug 17 · Servers now handle up to 254 playersJul 29 · Build 42 goes Stable

Masonry IV: "Secrets of a Professional Mason"

Masonry IV: "Secrets of a Professional Mason" is a skill book item in Project Zomboid. It trains Masonry for levels 7–8 and has 340 pages. Build 42.21 data, November 2026.

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Masonry IV: "Secrets of a Professional Mason" at a glance

Masonry IV: "Secrets of a Professional Mason" icon

Skill Book Books & media

It trains Masonry for levels 7–8 and has 340 pages. It weighs 1.

Weight1
SkillMasonry
Levels7–8
Pages340
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What it is and how to use it

Skill books multiply the experience you earn in one skill for a band of levels, so read the volume that matches your level before training. Other literature eases boredom and unhappiness, and magazines and schematics teach recipes.

More: Skill books and reading · Every skill.

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Item ID and variants

Use the item ID in sandbox loot settings, admin tools and mods.

Item IDGame category
Base.BookMasonry4Skill Book
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Where it spawns: the loot tables

Masonry IV: "Secrets of a Professional Mason" is on 9 loot tables in the game files. Share is how much of a table's total weight this item takes, before your sandbox loot settings. Each container rolls its table several times, so a bigger share and more rolls both mean you see it more often.

Loot tableWhere that table is usedShareRolls
Bookstore Blue CollarBookstore (shelves)1.8%4
University Library BooksUniversity library (shelves); University storage (shelves)1.4%4
Garden Store MiscGarden Store (cupboard, shelves)1.4%4
Bookstore BooksBookstore (crate, box); Pawnshop (box, shelves)0.81%4
Library BooksLibrary (shelves)0.63%4
Crate BooksAttic (box, crate); Bathroom (box, crate); Bedroom (box, crate); and 5 more places0.26%4
Post Office BooksPost Office (box); Post storage (box)0.19%4
Safehouse Book ShelfSurvivor safehouse (early) (shelves); Survivor safehouse (late game) (shelves); Survivor safehouse (mid game) (shelves)0.16%4

It is on 1 more table with smaller shares.

On zombies: zombies in these outfits can carry it: Survivalist, Survivalist 02, Survivalist 02 Late, Survivalist 02 Mid, Survivalist 03, Survivalist 03 Late, Survivalist 03 Mid, Survivalist 04 and 7 more.

Inside bags and cases: Military Backpack.

Town by town: loot locations.

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Similar items

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Quick answers

How much does the Masonry IV: "Secrets of a Professional Mason" weigh in Project Zomboid?

It weighs 1 in Build 42.

What is the item ID for Masonry IV: "Secrets of a Professional Mason"?

Base.BookMasonry4.

What does Masonry IV: "Secrets of a Professional Mason" teach?

It trains Masonry for levels 7–8.

Stats and item IDs from the Build 42 game data as listed on pzfans.com. Item art is from Project Zomboid.