Your first real base in7 Days To Dieis likely going to be made out of Wood Blocks, and they’re a fairly resilient material. They can hold up to some hits, and they’ll end up being much safer than one of the abandoned houses around the map, at least in the beginning.

As things get tougher, and Blood Moons happen, a pack of zombies can quickly tear down Wood Blocks and leave you injured – or worse, dead and having to find your inventory. You’ll want to start upgrading your base to Cobblestone, but you’ll need Cobblestone Rocks to do it.

Player character crafting Cobblestone Rocks in their inventory in 7 Days To Die.

How To Make Cobblestone Rocks

To make Cobblestone Rocks, you’re going toneed two different materials: Small Stones and Clay Soil. You canfind plenty ofSmall Stonesby looting most things in the world,picking them upfrom the ground, orbreaking down large rockswith a harvesting tool, such as aStone Axe or Iron Pick.

Clay Soil, on the other hand, you’ll generally need todig it up using a Shovel. It’spossible to find it via lootingas well, but it’snot as commonas other materials, and you’llneed a lot of Clay Soilto make enoughCobblestone Rocks for a building project.

Player character using Cobblestone Rocks and a Claw Hammer to upgrade Wood Blocks in 7 Days To Die.

you may sometimesfind Cobblestone Rocks whenlootingtrash piles, foul trash, rolling trash bins, or cardboard boxes.

Once you’ve got the materials,go into yourinventory, and you’ll find theCobblestone Rocks recipein theResources tab.It takesone Small Stone and one Clay Soilto craft, and in return, you’ll getone Cobblestone Rock.

How To Upgrade Blocks With Cobblestone Rocks

While Cobblestone Rocks areused to craft the Forge, their main use is forupgrading existing Wood Blocksplaced by you, and each blocktakes ten Cobblestone Rocksto upgrade.

You can alsocraft Cobblestone Blocks for the same costas an upgrade, but it’s better to upgrade Wood into Cobblestone, as breaking any misplaced Wood Blocks takes less time than if it were Cobblestone.

Equip either aStone Axe or a Claw Hammerin hand, thenapproach a placed Wood Blockwhile you haveCobblestone Rocks in your inventory.

Use whatever you have set forSecondary Action, and you’ll get apercentage promptas long as youhold Secondary Action on the block. Do so untilthe upgrade is completed, then the Wood Block will turn into a Cobblestone Block.

Both the Stone Axe and the Claw Hammer do the same thing, but theClaw Hammer only takes two swings to upgradea block, as opposed to the Stone Axe’s three.