Rust TC Placement Guide: How to Protect Your Tool Cupboard

Your Tool Cupboard is the most important object in your base. Not your loot. Not your furnaces. The TC. Destroy it and every wall, door, and floor in your base decays in minutes. Raiders know this. Every single raid in Rust begins with one question: where is their TC?

TC placement is the difference between a base that holds for a week and one that gets decayed overnight. This guide covers everything you need to know to place your TC properly in 2026 — from the fundamentals to advanced multi-TC strategies.

Why TC Placement Matters So Much

When a raider destroys your TC, your entire base is placed under decay. Stone walls lose around 8 HP per minute. Doors and frames decay faster. Within 3-6 hours, an unprotected base with a destroyed TC is fully accessible — no explosives needed.

This means raiders have two valid strategies: blow through your walls to reach the loot directly, or find your TC, destroy it, and come back later when your base has decayed open. The second strategy costs far fewer resources.

Internal TC vs External TC

There are two schools of TC placement in Rust: internal and external. Both work. Both have tradeoffs.

Internal TC (Hidden Core)

An internal TC is buried inside your base — ideally in the center of your loot room, surrounded by honeycombed walls on all sides. Raiders have to crack through your entire base to reach it.

Advantages:

• Maximum protection — raiders can't target the TC without first spending the same resources as a full raid
• Works in all base sizes from 2x2 to large compounds
• No separate structure to defend

Disadvantages:

• You have to walk through your entire base to auth new teammates
• If your base is already weak, raiders can reach your TC mid-raid
• Poorly placed internal TCs can be reached from the roof with a jump

External TC (TC Block)

An external TC block is a separate, heavily armored 1x1 or 1x2 structure attached to your main base. The TC sits inside this armored pod, with high placement to make it harder to reach.

Advantages:

• Easy to auth from outside — useful for large teams or bases with many visitors
• Can be placed on an elevated foundation to make reach-attacks impossible
• Doesn't add to your main base's raid cost calculation

Disadvantages:

• Visible from outside — experienced players will target it first
• Requires sheet metal or armored walls to be meaningful protection
• Needs its own honeycomb or it dies in 3-5 rockets

Example of a base with a well-designed external TC system:

→ The Perfect 4-8 Man Circle Expansion (External TCs)

The 5 Rules of TC Placement

Rule 1: Never place TC in a corner you can shoot from outside

The most common TC placement mistake. If a raider can see your TC through a window or shoot it through an open door frame, it will be targeted immediately. Your TC room should have no windows. The only access should be through your airlocks.

Rule 2: TC height determines reach-attack risk

Placing your TC on the ground floor makes it reachable through a wall gap with a melee weapon. Raiders don't need to break the wall — they can reach the TC through a gap between the floor and wall. Place your TC on a raised foundation (half-floor or second floor) to eliminate this vector.

Rule 3: Count the walls between your TC and the outside

The minimum you should accept is 3 walls between your TC and any exterior wall. That means a raider needs to break 3 full walls — at approximately 2 rockets each — before they reach your TC room. For a 2x2 base, this is achievable. For solo bases, it requires intentional placement.

The Arcana is a good example of what 5 walls to TC looks like in practice:

→ The Arcana — Duo/Trio Bunker: 5 Walls to TC

Rule 4: TC and loot should not share a room

Putting your TC in your loot room means a single breach ends your wipe. Separate them. Ideally, your TC is in a dedicated room with no other valuables — just the TC and a sleeping bag. Your loot caches should be one or two more rooms deep.

Rule 5: Auth on your TC before you do anything else

This sounds obvious. It's not. Players die all the time from being killed before they auth, then logging back in to find their base sealed against them. Place TC → auth → then build walls around it. In that order, every time.

TC Placement by Base Type

Solo Base (2x1 / 2x2)

In a solo base, you have limited space. The best approach is a triangle room adjacent to your loot room, accessible only from inside. Place the TC on a half-floor if possible to eliminate reach attacks. Protect it with at least 2 stone walls on each exterior-facing side.

This Stelic design shows optimal TC placement for a solo/duo build:

→ Stelic's Perfect Solo/Duo Bunker Base 2026

Duo/Trio Base (2x2 / 3x3)

With more space, you can bury the TC properly. Place it in the center of the base, surrounded by honeycomb on all sides. The TC room should be accessible only via your main loot corridor — never directly from an airlock. A 2x2 with a centered TC should require at minimum 4 walls breached before raiders reach it.

Example of deep TC placement in a duo bunker:

→ Perfect Bunker Base Design for Solo/Duo (2025)

Large Base / Compound (4x4+)

Large bases should use multiple TCs placed in different locations. If one gets destroyed, the rest keep your base alive while you respond. Space them at least 10 foundations apart so a single raid path doesn't reach multiple TCs simultaneously.

How to Test Your TC Placement Before Going Offline

Before you log off, do this check every time:

1. Walk the full perimeter of your base. Look for gaps between floors and walls where a melee weapon could reach inside.
2. Check every external wall. Stand at each one and ask: can I see the TC room from here? If yes, add a honeycomb layer.
3. Count walls from every external face to your TC. If any direction requires fewer than 3 wall breaches, fix it before you log.
4. Check roof access. Can someone land on your roof and shoot down through a gap into your TC room? Add a ceiling layer if so.
5. Try to reach your own TC from outside using a building plan. If you can place a block next to it through an external wall gap, raiders can too.

Common TC Placement Mistakes

• Placing the TC in a visible 1x1 attached to the side of your base — it will be destroyed for 6 rockets every time
• Ground-floor TC in a room that shares a wall with the exterior — reachable by melee through the gap
• TC in the same room as a vending machine — every visitor to your shop can see your TC through the window
• Single TC in a large base — one breach ends your entire wipe
• Forgetting to auth after expanding your base — new rooms outside your TC range aren't protected