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Nest three rooms together — beta
Cross Area Nesting puts a kitchen, bath and laundry using the same stone onto a shared slab layout. Each room keeps its own square-foot pricing.
Open video ↗Choose between four Auto Nest modes
One kitchen goes through SlabOS Auto Nest four ways. Veined (the default) keeps strips with their parents, Tightest Fit uses the fewest slabs, Fastest Cutting (beta) aligns cut lines, and Cookie-Cutter (beta) repeats identical slabs for repeat units.
Read the clip: text and visual description
SlabOS: One job. Four nesting decisions.
The video has no voiceover. Everything below appears on screen, over an original instrumental score.
One job. Four nesting decisions.
The job is one kitchen: an L-shaped sink run split at the corner seam into CT1.1 (82.5 by 25.5 inches, with the sink) and CT1.2 (25.5 by 84 inches), a range run CT2 (60 by 25.5 inches) and an island CT3 (84 by 42 inches). It is 72.32 square feet in all: 4 pieces and 5 four-inch splash strips, nested on 126 by 63 inch slabs.
01, Veined, the default. It keeps strips with their parents and is best for veined stone. Result: 3 slabs. Each splash strip is cut on the same slab as its counter.
02, Tightest Fit. It maximizes yield and uses the fewest slabs, and it breaks the vein where that saves stone. Result: 2 slabs. CT1.1's back splash moves to Slab 2.
03, Fastest Cutting (beta). It adds to either mode and aligns cut lines, for fewer saw setups. Here it runs on top of Tightest Fit, and the result is still 2 slabs. The strips line up in rows, and the saw cut lines are drawn across both slabs.
04, Cookie-Cutter (beta). It repeats identical slabs. On one kitchen there is nothing to repeat: the result is the same 2 slabs. On a repeat-unit job of 6 kitchens and 6 vanities, it nests 4 slabs, and Slabs 1, 2 and 3 are identical (×3 identical). It is best for repeat units.
How to choose:
- Veined is for veined stone, and it is the default.
- Tightest Fit gives the fewest slabs.
- Fastest Cutting (beta) means fewer saw setups.
- Cookie-Cutter (beta) is for repeat units.
SlabOS. Nest it your way. slabos.com. Book a demo.
Notes: all layouts come from the SlabOS Auto Nest engine. The slab counts apply to this job.
Published by SlabOS · Evidence reviewed through September 15, 2026
SlabOS supports automatic slab placement with controls for packing and material presentation, manual adjustment and preserved locked layouts. The useful evaluation is how those controls handle your drawings, stock and production constraints. This review explains what is documented and how to verify an accepted result.
This SlabOS-published, AI-assisted review combines official documentation with authorized private inspection of SlabOS. No matched-job yield benchmark was completed. The article distinguishes documented controls from performance claims that still require measured results.
Separate the jobs hidden inside “nesting”
An estimating slab layout, automatic geometric placement, vein presentation and machine-ready cutting are related but different tasks. A layout can fit pieces into fewer slabs and still be unacceptable because the veins look wrong, handling is impractical or the intended cutting sequence cannot be executed.
A buyer should therefore compare at least four outputs: slab count, acceptable appearance, usable remnant geometry and a feasible downstream production handoff. The total effort includes setup, manual corrections and checking—not just the time until an automatic placement appears.
SlabOS controls supported by the evidence
The SlabOS nesting page and Physical slab inventory and planned slab layouts, together with private inspection, support selectable priorities including Veined Material and Tightest Fit. Fastest Cutting and Cookie-cutter options are identified as beta. Spacing and edge allowances, manual adjustment and preservation of locked slab layouts during reruns are part of the reviewed scope.
These are meaningful operator controls. A shop can explore a layout, make a deliberate adjustment and preserve approved work while rerunning other placement. They do not establish a percentage improvement in yield or a universally optimal result.
The image source also matters. A calibrated image of the actual stock can support a different decision from a sample material image. Confirm dimensions, orientation and which slab the image represents before interpreting the screen as a production promise. Selecting a remnant is not evidence that the system globally chose the best remnant from all available inventory.
Follow the same geometry into production
Begin with an accepted drawing and identify the actual stock being considered. Confirm that the dimensions, image scale, seams and allowances used for layout match the intended work. Preserve approved placements deliberately; a rerun should not be mistaken for a review of everything already locked.
Use the CAD geometry and laser-templating handoffs for drawing and import/export operation and the Automatic 3D assembly, cabinets and kitchen furnishing for the related visual workflow. These guides describe available controls and access conditions. They do not substitute for a machine-specific acceptance test.
A practical nesting evaluation
For a repeatable evaluation, retain the same input drawings, physical slab dimensions, images, stock availability and usable remnant outlines. Agree spacing, edge allowances, rotation limits, seam rules, grain direction and any locked pieces before running the trial. Record software versions and whether a feature is beta or integration-dependent.
Run more than one kind of job: a relatively simple material, a vein-sensitive job, awkward geometry and a job that could reuse remnants. Publish the inputs where rights permit, the accepted layouts and the rejected attempts. Report slab count, material area used, usable remnant shapes, setup time, operator time and corrections. Explain the denominator for every yield calculation.
Have a qualified production reviewer check whether each accepted layout can proceed through the shop's actual process. If an operator changes a constraint or manually corrects a result, preserve that information. A vendor-funded test can be useful when its funding, method and limitations are explicit; it must not be presented as independent by changing the publisher name.
Check the production handoff separately
DXF export alone does not prove CAM toolpaths or machine readiness. Confirm units, geometry, seams, fixture and cutout handling, and the exact downstream software and machine version. A successful import is one check; an accepted production result is another.
Placement-attempt counts are not a yield benchmark. Migrated quote counts do not measure Auto Nest usage. A screenshot of an attractive layout does not show that all constraints were met. SlabOS's case for inclusion rests on its documented controls and connected workflow, while comparative performance remains a question for matched testing.
See the SlabOS nesting discussion on X for affiliated related reading. Its public caption and topic were confirmed for this review; the full X article body was not retrieved. The primary sources and evidence boundaries above govern this edition.
About the PDF edition
The download preserves the supplied September 14, 2026 report. This HTML article has been revised separately. The PDF retains its original wording and branding; its export date does not indicate a new product test.
Where this fits in the SlabOS workflow
Follow this capability into the connected quote-to-install journey:
- Plan slabs & remnants: Carry the material plan into the quote options and purchasing conversation.
Current product capabilities
SlabBridge is SlabOS’s Windows service for connecting shop-side inventory and fabrication systems. It includes Slabsmith inventory and image ingestion, supported create/update writeback and Horus scanner imagery. The connected records supply material context for SlabOS quoting, nesting and warehouse work. Read the SlabBridge, Slabsmith & Horus page →
The nesting page connects automatic placement of the drawn pieces to actual inventory slabs and the shop’s price lists. It describes re-nesting when the drawing changes. Yield and runtime comparisons still need a defined test dataset and retained output. Read the Slab Nesting page →
Explore the capability in context
Continue into the related public explanations for inputs, outputs and scope.
- Physical slab inventory and planned slab layouts
- Countertop estimating from drawing to proposal
- Countertop cutouts, seams and fabrication geometry
- Automatic 3D assembly, cabinets and kitchen furnishing
- SlabBridge: connect Slabsmith and Horus with SlabOS
Connected product pages and tools
- SlabBridge, Slabsmith & Horus
Explore SlabOS’s Windows service, two-way Slabsmith capabilities and Horus scanner imagery.
- Slab Nesting
Understand the product context for placing countertop pieces on selected slabs.
- Warehouse Map
Connect inventory identity to a physical warehouse, bay and recorded location.
- Slab Labels & QR
See how physical tags connect slabs and racks to inventory records.
- Slab yield optimization
Review yield definitions and the effects of seams, kerf, grain and remnants.
SLABOS IN MOTION 10 FILMS
SEE THE WORKFLOW.IN MORE DETAIL.
A closer look at the decisions, details and handoffs that make the work happen.
Lock This Layout
Twenty minutes matching the vein by hand. Lock that slab, hit Auto-Nest, and everything else reshuffles around it. The locked slab comes back exactly as you left it, and an island seamed across two slabs holds both in place. slabos.com
Open video ↗Deeper Than Your Eye
Two pieces look clean on the slab. Underneath, they share 1/32" of stone. SlabOS flags any shared stone deeper than 1/64" with an exact check, not a sample. Edges that only touch stay clean. Cutouts count as empty space. Caught at the layout, not at the saw. slabos.com
Open video ↗Check saw overcuts before cutting
Set the blade diameter and inspect straight-cut run-outs against the slab layout. See cut lines, overcuts and offcut run-outs before sending the work to the saw.
Open video ↗Seam oversized pieces in one pass
Use Seam All Pieces to apply suggested seams to oversized pieces, run one auto-nest and undo the operation together. Pieces still too long are flagged for review.
Open video ↗Set the vein match in 3D Builder Studio — beta
Move a piece across the slab photo, mirror a slab for a bookmatch, inspect the seam in Joint Cam and lock the selected layout. 3D Builder Studio is in beta. Review the slab image and final layout before fabrication.
Open video ↗Cookie-Cutter nesting for repeat units (beta)
Cookie-cutter nesting (beta) designs one slab layout for a group of identical units and stamps it, so repeat jobs nest in seconds and the saw cuts the same slab over and over.
Read the clip: text and visual description
SlabOS - Nesting: Cookie-Cutter (BETA) - all on-screen information as plain text
Video: SlabOS-Nesting-Cookie-Cutter-Beta-v1 (38 seconds, no voice-over, music and sound effects only)
Identical units. Different slabs?
Multi-family job, 6 units. Each unit has a kitchen L and a vanity.
12 pieces.
Kitchen L, 72 by 50 inches, times 6.
Vanity, 49 by 22 inches, times 6.
4-inch splash. Slabs 126 by 63 inches.
Tightest Fit — maximize yield.
Slab 1, Slab 2, Slab 3, Slab 4.
4 slabs. 4 layouts.
Every slab a different layout.
Check one box.
Tightest Fit — maximize yield (checked).
Cookie-cutter — repeat identical slabs (BETA) (checked).
Auto Nest.
Cookie-cutter (BETA).
Design one slab.
Slab 1, 126 by 63 inches: CT1 and CT2 (two kitchen L's, one turned 180 degrees so they interlock), CT7 (a vanity turned 90 degrees) and 4 splash strips.
2 kitchen L's + 1 vanity + 4 splashes.
Times 3.
One layout, stamped 3 times (Slabs 1, 2 and 3).
Slab 4: 3 vanities + 6 splashes.
Slab 1, times 3 identical. Slab 4.
4 slabs. 2 layouts.
Same slab count as Tightest Fit on this job.
Nests in seconds, instead of minutes.
The saw cuts the same slab over and over.
SlabOS. Repeatable layouts for repeat units.
Cookie-cutter nesting, beta.
slabos.com. Book a demo.
Notes: the slab layouts are real SlabOS Auto Nest engine output for this job. Cookie-cutter nesting is a beta feature.
Fastest Cutting: align cut lines (beta)
Fastest cutting (BETA) runs on top of the SlabOS Auto Nest modes: pieces prefer positions that share cut lines with their neighbours, so the saw can run straight through aligned rows. On the same kitchen as our Tightest Fit clip, the layout lines its strips up in rows and still uses 2 slabs.
Read the clip: text and visual description
SlabOS — A Layout With Cutting In Mind (Fastest cutting, BETA). On-screen text, in order (no voice-over; the soundtrack is music and effects only).
More cut lines. More saw setups.
SlabOS · Fastest cutting (BETA).
One kitchen. CT1.1, 82.5 by 25.5 inches. CT1.2, 25.5 by 84 inches. CT2, 60 by 25.5 inches. CT3, 84 by 42 inches.
4 pieces, 5 splash strips, 4 inches high.
Nesting settings:
Veined material — keep strips with parents (not selected).
Tightest Fit — maximize yield (selected).
Fastest cutting — align cut lines, BETA (selected).
Auto Nest.
Auto Nest. Slab 1, 126 by 63 inches. Slab 2, 126 by 63 inches.
Slab 1 holds CT1.1, CT1.2 and CT2 with all five splash strips; Slab 2 holds CT3. Clean fit on both slabs.
Laid out for the saw.
Shared cut lines. Pieces share cut lines with their neighbours.
(On Slab 1, edges that line up are highlighted one line at a time: the top edge shared by five pieces, the line under CT1.1 shared with both 26-inch strips, the line between CT1.2 and its splash, the bottom of CT2 and its 60-inch strip, and the vertical lines where pieces and strips stand in rows.)
Fewer saw setups. The goal: the saw runs straight through aligned rows.
Still 2 slabs. Same slab count as Tightest Fit alone.
SlabOS. A layout with cutting in mind. Fastest cutting, BETA. slabos.com. Book a demo.
Notes: the layout comes from the real SlabOS Auto Nest engine (Fastest cutting on top of Tightest Fit, 126 x 63 inch slabs, 0.25 inch blade kerf, 0.5 inch slab border). Fastest cutting is a BETA setting. No machine-time or speed saving is claimed.
Tightest Fit on the same kitchen
The same kitchen nested twice in SlabOS: Veined material keeps every splash strip beside its counter and uses 3 slabs; Tightest Fit packs strips on their own and gets this kitchen onto 2 slabs, at the cost of vein continuity at the splash.
Read the clip: text and visual description
SlabOS — What Tightest Fit actually changes (32-second silent website video; all information is on screen)
What does Tightest Fit actually change? Same kitchen, same slabs.
The job: a kitchen with four countertop pieces. CT1.1 is 82.5 by 25.5 inches and holds the sink. CT1.2 is 25.5 by 84 inches; together they make the L-shaped sink run, joined by a seam at the inside corner. CT2 is a 60 by 25.5 inch range run. CT3 is an 84 by 42 inch island. There are also five 4-inch splash strips.
The slabs are 126 by 63 inches, nested with a 0.25-inch blade kerf and a 0.5-inch slab border.
With the default mode, "Veined material — keep strips with parents", Auto Nest uses 3 slabs. Each splash strip stays next to its own countertop piece.
Switch one setting: tick "Tightest Fit — maximize yield" and press Auto Nest.
The same pieces re-pack onto 2 slabs: CT1.2, CT1.1 and CT2 (turned on its side) share Slab 1, and the island CT3 goes to Slab 2. Same pieces, same 72.32 square feet.
The trade: strips nest apart from their parents. CT1.1 is cut from Slab 1, but its 83-inch back splash is cut from Slab 2, so the vein can break where splash meets counter. Tightest Fit is best for granite or non-directional stone.
SlabOS. See the trade. Then cut. slabos.com — Book a demo.
Note: both layouts are real SlabOS Auto Nest engine results with identical inputs; slab savings depend on each job's pieces and slab sizes.
Keep splash strips with their counters
Veined material is the default nesting mode in SlabOS: Auto Nest keeps every splash strip on the same slab as its counter, so the vein carries across the joint. On this kitchen it uses 3 slabs where Tightest Fit uses 2.
Read the clip: text and visual description
SlabOS-Nesting-Veined-Mode-v1 — on-screen information (no voice-over; the clip is designed to play muted)
The vein breaks. In a Tightest Fit layout of this kitchen, the 83-inch back splash for counter piece CT1.1 lands on Slab 2 while CT1.1 itself is cut from Slab 1.
One kitchen: an L-shaped sink run split at the inside corner into CT1.1 (holding the sink) and CT1.2, a range run CT2, and an island CT3. Three counters, five 4-inch splash strips, one seam.
Veined material. The Step 5 nesting setting "Veined material — keep strips with parents" is the default; the other option is "Tightest Fit — maximize yield". Veined material refuses to break vein continuity at miter, splash or waterfall joints. Then Auto Nest runs.
On 126 by 63 inch Taj Mahal White slabs, every piece lands on the layout the Auto Nest engine produced: Slab 1 holds CT1.1 and CT1.2 with all three of their splashes, Slab 2 holds CT2 with both of its splashes, Slab 3 holds the island. Three slabs. Every strip sits on its parent's slab.
One more slab, on purpose. Tightest Fit used 2 slabs on this job; Veined keeps the vein.
The vein carries on. Pattern preview of Slab 1: the S4" 83" splash is cut directly above CT1.1, the S4" 84" splash directly above CT1.2, and the S4" 26" splash right beside CT1.2's end, so the stone pattern continues across each joint.
SlabOS. The pattern is part of the layout. slabos.com. Book a demo.
Notes: layouts are real SlabOS Auto Nest engine output for this job. Slab counts are for this job. No prices shown.
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