The Ultimate Welding Guide — Project Zomboid Build 42

Before you start

5 things to know

No torch, no welding. Cutting wrecks also needs the mask. Chapter 3
Reading Welder Monthly gives no XP. Welding I triples it. Chapter 5
Dismantling metal fences gives no XP by default now. Chapter 6
Bars on watch windows let you see out. Sheets block the view. Chapter 9
There is no way to make propane. Plan for Blacksmithing to take over. Chapter 11

Chapter 1

Welding in Build 42

Build 41 called it Metalworking. Build 42 split it in 2. Welding is the torch half: cut, join, barricade, repair. No forge, no charcoal.

Welding builds metal walls, crates, frames, fences and gates, puts metal barricades on doors and windows, dismantles car wrecks for sheets and pipes, and repairs car bodies when Mechanics allows.

Metal walls

Stronger than wood. Faster than stone. Built from scrap.

Wire fences

Cheap perimeter from wire, pipe and scrap. Magazine required.

Wrecks

The one dismantle that still gives XP by default.

The welder's loop

LootTorch, mask, rods, tanks.
ReadWelder Monthly issues.
CutWrecks into sheets and pipes.
WeldWalls, crates, fences.
RefillThe torch from a tank.

Why it matters

Welding pays off first. It turns the car graveyard outside town into a fence around your base while the smith is still digging clay.

Chapter 2

Build your welder

One job gives both levels and recipes. Everyone else needs the magazines.

Welder (job)

+4 Welding and most welding recipes already known. The only job with a recipe head start. It used to be called Metalworker.

Mechanic (job)

+1 Welding, no welding recipes.

Crafty, Fast Learner (traits)

130% XP each.

Slow Learner

70%. Avoid it if you plan to weld.

Watch out: point costs change

The game makers still tune traits and jobs. Always read the numbers on your own character screen.

Welding has 5 books at 3, 5, 8, 12 and 16 times XP: Basics of Welding, Building with Metal, Machining Metal, Ore to Sheets, and Technological Fundamentals of Metal Fabrication.

Watch out: TV does not teach Welding

Life and Living covers other skills. For Welding, look for the Home Welding Guide VHS and Welder Monthly magazines.

Chapter 3

The kit: torch, mask, rods, propane

No torch, no welding. This is the rule everything else hangs on. Cutting also needs the mask.

Item	Where	Used for
Welding torch	Garages, tool crates, welding shops, mechanic shelves, army hangars	Every welding action. Holds 10 uses.
Welder Mask	Same places	Cutting wrecks, metal furniture and sheets. Wear it or carry it.
Welding rods	Hardware stores, industrial shelves	Building only. Not cutting or dismantling.
Propane tank	Barbecue grills in back yards, hardware stores, industrial sites	Refills the torch. A full tank holds about 70 torch uses, about 7 full torches.

Open the Build menu

Open the Build menu with the button on the left of the screen, or its key. Pick the Welding tab. Metal barricades also show when you right-click a door or window.

Secret: carry 2 torches

A torch runs dry mid-wall. A second one finishes the job.

Chapter 4

Welding versus Blacksmithing

The 2 metal skills solve different problems.

Welding

Torch and propane. Defenses, storage, car repairs, stripping wrecks. Quick to start with loot. Dies when propane runs out.

Blacksmithing

Forge and charcoal. Tool heads, blades, nails, anvils. Slow to start. Never runs out.

Secret: Welding feeds the forge

Cutting wrecks is the fastest way to get scrap for the furnace. The welder supplies the smith.

Watch out: if it mentions an anvil, it is the other skill

Anvil, charcoal, crucible: Blacksmithing. Torch, mask, rods: Welding.

Chapter 5

Welder Monthly: the magazines

Most welding structures need their recipe learned. Magazines teach them. The Welder job already knows most of them.

Welder Monthly issues teach metal walls, crates, frames and more. Several issues exist.
Welder Monthly April 1993 teaches the wire fence and gate recipes.
Home Welding Guide VHS gives Welding XP for early levels.

Watch out: magazines unlock, books multiply

Reading Welder Monthly gives no XP. Reading Welding I triples your XP for 2 levels.

Chapter 6

Where XP comes from now

Build 42 nerfed the old grind. Know what still counts.

Action	XP on default settings
Building welded structures	Yes
Metal barricades on doors and windows	Yes
Dismantling car wrecks	Yes
Dismantling metal furniture and objects	No, unless the sandbox option is on
Car body repairs	Yes, when Mechanics allows

Watch out: the Build 41 fence grind is dead

Old guides say dismantle every metal fence and shelf. In Build 42 that gives materials but no XP by default. Sandbox: Maximum Dismantling XP Level Wrecks and building are the grind now.

Chapter 7

Metal walls, crates and frames

The bread and butter. Sheets, rods and pipes from wrecks become the base.

Build	Typical needs
Metal wall frame	Steel rods, welding rods, torch uses
Metal wall	Small sheets, rods, torch uses, a known recipe
Metal crate	Sheets, small sheets, scrap metal and rods. Big, sturdy storage.
Metal door and window frames	Door frame: steel rods. Window frame: small steel sheets.

Secret: higher level, stronger wall

Like Carpentry and Masonry, a wall built at a higher Welding level has more health. Build the outer walls last.

Watch out: rods and torch uses are both spent

Each build burns welding rods and torch charges. Count both before a long session.

Chapter 8

Wire fences and gates

The cheapest perimeter in the game, once you have read one magazine.

Read Welder Monthly April 1993

It teaches wire mesh fences and gates.

Build the fence

Wire, iron pipes, scrap metal and welding rods, with a torch. You need Welding 3. Gates the same, plus hinges.

NeedWire, iron pipes, scrap metal, rods, torch, Welding 3

You getA fence zombies must break through, and Welding XP

Secret: wire from fences

Cutting down old wire fences with the torch can give wire. Car wrecks can too. Feed it into new fence.

Chapter 9

Metal barricades

The strongest barricade you can put on a door or window.

Barricade with metal

Right-click a door or window with a torch, welding rods and a steel sheet or 3 steel rods in your inventory. Choose the metal barricade option. You need Welding 3.

NeedTorch, rods, 1 steel sheet or 3 steel rods, Welding 3

You getA barricade (a sheet beats 4 planks), and Welding XP

Secret: metal bars keep the view

Bars let you see out. Sheets block the window completely. Bars on watch windows, sheets on the rest.

Chapter 10

Cars: dismantle and repair

Wrecks are the welder's mine and the welder's training ground.

Dismantle a wreck

Right-click a burnt or smashed car with a full torch and the mask. Choose Dismantle Car Wreck. 1 long action uses all 10 torch uses and removes the wreck. Higher Welding finds more metal.

NeedA torch with all 10 uses, mask

You getA random pile: sheets, small sheets, pipes, scrap metal and more, and Welding XP

Repair car body parts

Hood, trunk lid and doors can be welded back up from the mechanics menu. Hood and trunk lid need Mechanics 2 and Welding 1. Doors need Mechanics 2 and Welding 3. Uses sheets and 2 torch charges.

Secret: the wreck at the crash site is worth more than the car

A destroyed car cannot be driven. It can still be cut for metal and XP.

Chapter 11

Propane logistics

Propane is finite. It is the welder's real clock.

A torch holds 10 uses.
A full tank holds about 70 torch uses. That is about 7 full torches.
Every action costs uses: building, cutting and dismantling alike. A car wreck takes all 10.
Tanks are also fuel for propane barbecues. Decide who gets them.

Secret: back yards

Suburban barbecue grills often hide a tank. Check every patio on your loot route.

Watch out: no propane, no welding

There is no way to make propane. When the tanks are gone, the torch is a paperweight. Plan for Blacksmithing to take over.

Chapter 12

Training plan: 0 to 10

Cut wrecks, build what you know, barricade what you own.

Levels 0 to 2: wrecks and the VHS

Read Basics of Welding. Watch the Home Welding Guide. Dismantle every wreck on the highway. Keep the sheets.

Levels 2 to 5: barricades and frames

Read Building with Metal. From level 3, metal barricade every window on the base. Build frames and crates with the magazines you have.

Levels 5 to 10: the perimeter

Read III to V. Wire fence the property. Metal walls at the weak points. Build the outer walls last for maximum health.

Watch out: the sandbox switch

If you want the Build 41 furniture grind back, raise the sandbox option called Maximum Dismantling XP Level. On default, it is off.

Level by level: Welding

The best single thing to do at each level. Read the matching book first when one exists.

Level	Do this for most of your XP	Why
0 to 1	Watch Home Welding Guide. Read Welding I. Dismantle wrecks	The only dismantle that pays by default
1 to 2	Every wreck on the highway	Sheets and XP
2 to 3	Metal wall frames, if you know them. More wrecks	Barricades need level 3
3 to 4	Read Welding II. Metal barricades, then crates from magazines	Builds pay more than cutting
4 to 5	Wire fences after April 1993	Cheap perimeter, lots of segments
5 to 6	Read Welding III. Metal walls	Big builds
6 to 7	Car body repairs when Mechanics allows	New XP source
7 to 8	Read Welding IV. Metal walls at weak points	Higher level, stronger wall
8 to 9	Full metal perimeter	Volume, propane permitting
9 to 10	Read Welding V. Finish before the propane runs out	It is finite

Your ticks are saved in this browser, on this device only.

Chapter 13

Tips, tricks and fixes

20 tips from the torch

Setup

Take Welder. Level 4 and most recipes.
Torch and mask in the bag before anything.
Carry 2 torches.
Grab every Welder Monthly.
Check patios for propane.

Working

Wrecks give XP. Fences and shelves do not.
Rods are for building only.
Count torch uses before a wall.
Bars on watch windows, sheets elsewhere.
Outer walls last, at high level.
April 1993 for wire fences.
Weld car bodies when Mechanics allows.

Planning

Propane is finite. Ration it.
Do not burn propane on the barbecue if you weld.
Cut wrecks for the smith's scrap.
If it mentions an anvil, that is Blacksmithing.
Books multiply, magazines unlock.
Crafty or Fast Learner speeds it.
Metal crates are the best storage.
Check the craft panel for exact costs.

Fix-it table

Problem	Likely cause	Fix
Welding builds are greyed out.	No torch uses, no rods, or level too low.	Check what the Build menu says is missing.
The wall recipe is missing.	Magazine not read.	Read the right Welder Monthly, or play Welder.
The torch is empty.	10 uses spent.	Refill from a propane tank.
I cannot build the fence.	April 1993 not read.	Find it.
Dismantling shelves gives no XP.	Build 42 default.	Wrecks and building. Or the sandbox option.
Out of rods.	Building eats them.	Hardware stores.
Cannot repair the car hood.	Mechanics too low.	Level Mechanics.
Recipe wants an anvil.	Blacksmithing.	See that guide.
TV gives no Welding XP.	Life and Living does not cover it.	Home Welding Guide VHS.
All the propane is gone.	It is finite.	Switch to Blacksmithing.

Chapter 14

Welder's test

7 questions. Get them all right and you can weld a fortress.

Chapter 15

Words and sources

Welder's word list

Welding torch: The propane tool. Every action needs it.
Welder Mask: Needed with the torch to cut wrecks and metal objects.
Welding rods: Consumed when building.
Torch uses: Charges in the torch. 10 when full.
Welder Monthly: The magazine series that teaches recipes.
Metal barricade: A sheet or bars welded over a window or door.
Wreck: A destroyed car. Cut it for sheets.
Metalworking: The old Build 41 name for Welding plus Blacksmithing.

How sure are we?

Every fact here was checked in September 2026. We checked the game files for version 42.21.0. Order of trust: the official wiki, then well-sourced fan guides, then player reports.

Torch and mask rules, XP sources and the furniture nerf, magazine-gated recipes, rods per build. Confirmed on the official wiki.
Welder +4 and recipes, book names, rods for building only. A fan guide citing the wiki.
10 torch uses and tank refill counts. A fan guide's data for 42.19.
April 1993 fence recipes. Fan guide verified against 42.20.4 scripts.
Checked against the game files (42.21.0): torch 10 uses, about 70 torch uses per tank, mask for cutting only, a wreck uses a full torch, barricades need Welding 3, build inputs, magazine recipe lists, book multipliers.
Exact material counts per wall. Not listed. Trust the craft panel.

Sources

PZwiki (the official wiki): Welding, Welding Torch
Guides-factory welding guide for Build 42, cross-checked against the wiki
PZfans welding hub and propane guide for 42.19 and 42.20.4
Gamers.wiki Welding versus Blacksmithing guide
Projectzomboid.wiki welding page (TV, VHS, loot spots)