What is the best stone for outer walls in RimWorld 1.6?

For most starts, sandstone is the fastest practical outer wall material. Granite or vacstone are better only on the few tiles you expect to tank repeated direct hits.

Is marble worth using for walls?

Yes for bedrooms, dining, recreation, and sculptures. No for exposed perimeter walls, because marble is the weakest classic wall material and hits a bad frag breakpoint.

Did RimWorld 1.6 change stone choices?

The local Core data still keeps classic stone roles mostly intact. Odyssey adds vacstone as the premium wall stone and obsidian as a beauty-heavy but fragile specialty material.

Should I use stone doors or stone traps?

Classic stone doors all share a 0.45 door speed factor, so avoid them on combat paths. Stone spike traps work, but throughput is the real constraint, so sandstone is the least painful stone trap if you insist on stone.

RimWorld Stone Types (1.6.4633) | Best Walls, Floors, Doors Tool

Local Game Data Snapshot

RimWorld Stone Types (1.6.4633)

The fast answer for walls, floors, doors, sculptures, and traps. Build smarter, not harder: sandstone first, granite only where hits concentrate, marble where mood compounds, and vacstone only if Odyssey is on and wealth can take it.

Jump to Quick Picks Open Comparator

Best Default Shell Sandstone. It cuts and builds faster, and still takes the same termite hit count as every classic stone.

Best Mood Stone Marble. Small sculptures and room-facing walls are where marble pays back every day.

Door Rule Classic stone doors all run at 0.45x door speed. Keep them off combat paths.

The 90-Second Fix

Quick Solution: Best Stone For Every Job

These picks follow the local 1.6.4633 rev1266 defs for classic stones and source-backed Odyssey rows when DLC is toggled on.

Include DLC (Vacstone / Obsidian)

Outer Walls & Killboxes

Put your shell up in the stone that saves the most labor, then double-layer it before raids scale.

Best Pick

Sandstone early. Granite only on corners and last-stand tiles.

Sandstone is the fastest classic wall at 420 HP and still takes 2 direct thump hits.

Interior Beauty

Use the stone that actually moves room impressiveness and sculpture payoff, not the one with the highest shell HP.

Best Pick

Marble for bedrooms, dining, rec, and art.

Marble carries the strongest classic beauty modifier, so mood rooms are where it wins.

Floors & Pathing

Stone floor stats are mostly shared. The material choice is about cutting speed and visuals, not movement magic.

Best Pick

Any stone for tiles. Sandstone for fastest rollout.

All classic stone tiles are 4 blocks, 1100 work, and 1 beauty in the local floor defs.

Doors & Traps

Raiders hit doors. Builders suffer through trap throughput. Use stone only where the labor trade makes sense.

Best Pick

Avoid classic stone doors. Sandstone is the least painful stone trap.

Classic stone doors all open at 45% speed. Sandstone keeps trap and wall labor lowest.

Core Comparison

Stone Stats Comparator

Sort by the stat that actually matters for the job. HP spreads are real, but frag and termite breakpoints compress them fast.

Material Table

Core 1.6.4633 + optional Odyssey rows

Stone Type	Wall HP	Wall Work	Direct Frag	Termite	Beauty	Notes

Live Build Planner

Blocks, chunks, cutting work, build work

Build Type

Material

Count

Double wall shell

Total Blocks0

Chunks Needed0

Stonecutting Work0

Build Work0

Per-Tile Frag Hits0

Per-Tile Termite Hits0

Sandstone stays the default planning stone because every chunk still yields 20 blocks and it minimizes both cutting and wall labor.

Raid Math That Matters

Advanced: Breachers, Layering, DLC Spots

Bomb, thump, and demolish math explain why layered layouts and repair staging beat obsessing over a single strongest wall tile.

rimworld stone types breach and layering panel preview

Breach Math, Not Vibes

The local defs give walls 2x Bomb and 2x Thump multipliers on top of the damage defs. That turns a direct frag into 400 wall damage and a thump shell into 270.

Granite, limestone, and sandstone all take 2 direct thump hits.
Marble and slate hit the bad 1-frag breakpoint at 360 and 390 wall HP.
Demolish damage spreads more, so granite buys several extra breach-axe swings.

rimworld stone types dlc spotlight panel preview

Vacstone And Obsidian

When Odyssey is enabled, vacstone becomes the premium perimeter material while obsidian becomes the beauty-heavy specialty pick.

Vacstone uses a 1.8x HP factor and keeps the classic stone door penalty.
Obsidian uses 0.5x HP, 2x beauty, and +8 beauty offset.
Obsidian doors are not slow, but the HP drop is severe enough that combat doors still should not be obsidian.

rimworld stone types logistics panel preview

Stonecutting Labor Wins Fights

The local recipe data sets stonecutting to 1600 work per chunk and 0 crafting XP. That means block flow is pure logistics: chunks close, bills tight, and rebuild caches staged near breach magnets.

One chunk always becomes 20 blocks.
Sandstone uses the lowest classic WorkToMake factor at 1.1x.
Stone floors share stats, so cut the stone that keeps crafters moving.

Workshop Workflow

Logistics, Bills, And Upgrade Timing

Most colonies waste more time hauling chunks than they save by swapping every wall tile to the toughest stone too early.

Copy-Paste Bill Setup

Local stonecutter table: 75 stuff + 30 steel

Bill: Make Sandstone Blocks
- Do until X: 480
- Pause when satisfied: On
- Unpause at: 360
- Ingredient radius: 12
- Drop on floor: Yes
- Allowed chunks: Sandstone only

Stockpile rule:
- Chunks next to bench: Critical
- Main chunk pile: Normal
- Blocks near builders: Important

Use sandstone for the first serious perimeter, add the second wall layer before breachers become routine, then patch only corners, turret recesses, and final hold points in granite or vacstone.

Planning And Refit Tools

Verified external links

RimWorld Planner Browser planner for sketching walls before you commit blocks in-game. Replace Stuff Fork Refit wood to stone without full teardown when your shell already exists. Stone Blocks Tool More detail on cutting work, chunk flow, and bill targets. Base Layout Tool Use it when stone choice is solved and traffic flow is the next bottleneck.

Version Notes

Patch History That Still Matters

The tool logic is built on your local 1.6.4633 rev1266 install. The links below are the official posts and the DLC pages that explain the current stone menu.

2025-07-11

Odyssey + free update 1.6 out now This is the official feature split where vacstone and obsidian enter the player-facing material list.
2025-07-22

Update 1.6.4528 released Stability follow-up. No meaningful stone-role shift for this tool.
2025-07-29

Update 1.6.4535 released Post-launch fixes. Classic stone advice remains the same.
2025-08-28

Update 1.6.4566 System update, mainly useful as version context for Odyssey-era saves.
2025-10-31

Update 1.6.4630 released The last official patch post in this chain. Your local install is slightly newer at 1.6.4633 rev1266.

Sources & Related Reads

Where The Picks Come From

Classic rows are backed by your local game defs. Odyssey rows are source-backed because the current local install only includes Core data.

Local Wiki: Wall Base wall HP, build work, and building behavior pulled from the current local data set. Local Wiki: Door Door cost and the shared door role for stuffable structures. Local Wiki: Spike Trap Trap base damage, work to build, and material categories. Local Wiki: Stonecutting The 300-point research gate before any serious stone workflow begins. Local Wiki: Stonecutter's Table Bench cost and why chunk placement around it matters. RimWorld Wiki: Stone blocks Useful cross-check for shared stone stuff behavior and comparative notes. RimWorld Wiki: Vacstone blocks Odyssey-only wall stone with the strongest stony HP factor. RimWorld Wiki: Obsidian Odyssey-only beauty monster with a 0.5x HP multiplier and fast doors.

Practical answer: build outer walls in sandstone first, double-wall them when raids escalate, reinforce only the breach magnets in granite or vacstone later, use marble where colonists stare every day, and keep classic stone doors away from combat lanes.