Conan Exiles Stability: Why You Can't Build Any Higher

Conan Exiles stability is the reason your tower suddenly refuses another building piece at a certain height. Every foundation touching the ground provides 100 percent stability to itself, and every piece you attach to it subtracts a fixed amount. Once a piece drops to 20 or below, you can't attach anything else to it. You don't get higher with better materials, only with new stability sources: foundations, wedge and fence foundations, and pillars that reach all the way down to the ground.

🧱 What Conan Exiles stability actually measures

Stability isn't a material stat. A tower made from a higher building tier doesn't stand a single meter taller than one made of sandstone. Higher tiers only give more hit points. What matters is one question: how many pieces sit between this piece and a real stability source?

Funcom puts it this way in its official developer documentation on the building system: stability determines "how far you can build outside a foundation, pillar or other supporting structure". Foundations that touch the ground remain true foundations for the system and provide themselves 100 percent stability without depending on anything else.

Every connection costs something. In the building piece data, this value is called Attach Cost: it states how much a piece loses when it connects through that attachment point. That's why the value drops with every piece you build away from the source, horizontally and vertically. Foundations have an Attach Cost of 100 on their side points, so "gluing" a foundation sideways onto a wall is completely ruled out.

No guessing needed: equip the repair hammer or hold Tab, and the game shows the stability of every placed piece. The building basics are in our Conan Exiles beginner guide.

📐 Which pieces provide stability and which only use it

The most common mistake: assuming every solid-looking piece carries weight. Funcom only names four families as stability sources: foundations, wedge foundations, fence foundations and pillars. Everything else only consumes it.

The most important row is the stacked foundation. If you build high, it's tempting to stack foundations and then wonder why the second floor stops accepting pieces after two tiles. Only the bottom row touches the ground. Everything above it is regular building material.

⚠️ Why height is where it breaks first

Building outward, you notice the loss slowly: ceiling after ceiling, the value drops, and at some point the piece glows red. Going up, every floor costs stability as well, and without a new source it adds up fast. After a few floors you're below the 20 mark, even though the tower stands perfectly straight on a solid foundation.

On top of that come three traps that slow almost every tower down:

• Pillars that don't go all the way down. A pillar attached to a ceiling on the first floor isn't a source. It only inherits the value of the piece it's stuck to. On the Funcom forums, players also report that such pillars pass on less stability after a server restart than before. That's a community observation, not an official statement, but it matches the common building rule of running a pillar all the way to the ground.
• Terrain as a crutch. A foundation that only has one corner in the rock is a gamble. If the game judges the ground contact differently, the whole branch collapses.
• Hoping materials will help. Upgrading from sandstone to a higher building tier buys hit points, not stability. Height comes from foundations and pillars.

The consequence: a tall tower needs sources that grow with it. A row of pillars from the ground up to just below the top floor, or a foundation core that supports each floor again.

🔧 What Patches 2.0.0 and 2.1.0 changed about stability

This is why older guides and YouTube videos are only half right today: with the Enhanced Patch 2.0.0 on July 21, 2026, Funcom touched the stability calculation. Two points are in the patch notes word for word:

• The stability check for placeables is more lenient after the initial placement. An object that's already standing doesn't get kicked out as fast when something nearby changes.
• Processing stability changes on server start and when removing or replacing building pieces got faster, according to the patch notes especially for structures with a stability loss multiplier of 0.

The second point is the underrated one. The server setting "Stability Loss Multiplier" controls how much stability a piece loses when connecting: lower values down to 0.00 mean less loss, higher values more. At 0, stability practically doesn't matter, and that exact case has been optimized on the server side since 2.0.0. If you see a video of someone stacking 20 floors without visible supports, first check whether that multiplier is simply set to 0.

Hotfix 2.0.1 on July 23, 2026 added another fix: certain combinations of stacked placeables lost their stability when building pieces nearby were replaced. If you had stacked shelves or chests back then and lost everything while rebuilding the wall next to them, you hit a bug, not a user error.

Patch 2.1.0 on August 18, 2026 improved placeables once more: stability is passed on more reliably, so placeables float without a connection to the ground less often. Funcom also fixed several placeables being able to support each other in a "stability loop", which is how floating sky bases came about. Existing loops stay in place for now so players can recover their items. Server admins can have them removed automatically with the Engine.ini entry dw.DestroyPlaceableStabilityLoop=1. The rest of Patch 2.0.0 is summed up in our article on Conan Exiles Patch 2.0.0, the bigger picture in our Enhanced and UE5 returning player guide.

✅ Seven ways to build higher

• Measure first, then build. Hold Tab or pull out the repair hammer and read the value on the topmost piece. At 20 or below, you're done.
• Place pillars from the ground. The cheapest source at height. It has to actually hit ground or a foundation at the bottom.
• Foundation core instead of foundation stack. An inner ring of foundations that sets down fresh on each floor carries better than freely stacked foundations.
• Use fence foundations on slopes. They grab where a full foundation won't fit and still count as a source.
• Wedge foundations for rock ledges. They give you a real source on sloped edges without covering half the terrain.
• Materials for durability, not height. Where to find them is in our resources guide, and Craft from Storage solves the supply runs.
• Plan ahead. A tower with a pillar shaft can keep growing later without tearing anything down. More building mistakes are collected in our tips for base building and thralls.

💡 FAQ: Conan Exiles stability

How high can I build in Conan Exiles?

There's no fixed number of floors. The limit comes from the stability value: once a piece drops to 20 or below, it won't accept anything. With continuous pillars and a foundation core, you get much higher than with a plain stack of walls.

Why does my piece turn red even though there's a foundation below it?

Most likely the foundation below isn't one anymore: stacked foundations without ground contact lose their foundation status according to Funcom. Check the value right below with the repair hammer.

Do better materials increase stability?

No. Building tiers raise hit points, not stability. You only gain height through additional sources.

Can I turn stability off on my own server?

On private servers and in single player there's the "Stability Loss Multiplier" setting. Lower values down to 0.00 mean less loss when connecting, higher values more. At 0 the limit is practically gone, and since Patch 2.0.0 the server handles that case faster as well.

Did Patch 2.0.0 make building easier?

Partly. The basic rules haven't changed, but the stability check for placeables is more lenient after placing, and Hotfix 2.0.1 fixed a bug with stacked placeables. Patch 2.1.0 also stopped stability loops between placeables. The patch notes don't mention changes to the stability values of the building pieces themselves.

Sources: Funcom's documentation on the building system (Building piece basics), the fan-run Conan Exiles wiki on Fandom (Building), and the patch notes for Enhanced Patch 2.0.0 (July 21, 2026), Hotfix 2.0.1 (July 23, 2026) and Patch 2.1.0 (August 18, 2026). The patch notes for 2.2.0 and 3.0.0 contain no stability changes. Community information is labeled in the text. There's no official Attach Cost table per building piece, and number lists from player tests that circulate online are deliberately left out. As of October 2026.