Cobbled Deepslate Stairs — Minecraft block

Overview

Cobbled Deepslate Stairs counts as a stone-family block in Minecraft 1.21.4. Cobbled Deepslate Stairs has a crafting recipe, so it is renewable as long as you can source its ingredients. At hardness 3.5 this is one of the tougher blocks in the game.

It needs at least a wooden pickaxe to drop anything; a weaker tool destroys it for nothing. Mining it returns the block itself, so it is safe to relocate. A full stack holds 64.

It is crafted from Cobbled Deepslate. The stonecutter is the cheaper route: one Cobbled Deepslate gives one of these. No recipe takes it as an ingredient.

How long it takes to break

Hardness 3.5 puts Cobbled Deepslate Stairs at 18 seconds a block bare-handed, or 0.6 seconds with the right tool at netherite tier.

Iron takes 0.9 seconds against diamond's 0.7, so the upgrade worth making for this block is the one to iron.

A weaker tool still breaks it, but anything under wooden returns nothing — you spend the time and lose the drop, which is how most veins get wasted.

The Efficiency formula is level² + 1 added to tool speed — at V that is about 4 times the unenchanted rate.

* breaks the block but yields no drop
Tool	No enchantment	Efficiency III	Efficiency V
Hand *	18 s	18 s	18 s
Wooden	2.7 s	0.45 s	0.2 s
Stone	1.4 s	0.4 s	0.2 s
Iron	0.9 s	0.35 s	0.2 s
Diamond	0.7 s	0.3 s	0.2 s
Netherite	0.6 s	0.3 s	0.15 s
Golden	0.45 s	0.25 s	0.15 s

Properties

Cobbled Deepslate Stairs has a blast resistance of 6, so a nearby explosion will usually destroy it. It blocks light completely and emits no light of its own. Stack size is 64 — the standard full stack. A pickaxe is the fastest choice here. A tool of the wrong class is no better than your fist — the speed bonus is tied to the block's own tool tag. As furnace fuel it burns for 15 seconds — one and a half smelting operations.

Transparent: No
Required tool: Wooden Pickaxe
Fuel value: 15 s