Oval on slab legs
Slab legs · Oval
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Stone in another dimension.
Design a table or sink. Bring the material and dimensions straight to your bid.
Start designingSTART FROM A MODEL
Pick a model, then make it yours.
- 1Model
- 2Size and thickness
- 3Leg
- 4Finish
Rectangle on stone trestles
Stone trestle · Rectangle
Boat top, double base
Double base · Boat
Hexagon on a stone tripod
Stone tripod · Hexagon
Waterfall rectangle
Waterfall · Rectangle
Round on a pillar
Pillar · Round
Round on a sculptural base
Sculptural base · Round
Racetrack on twin columns
Twin columns · Racetrack
Pick a model to begin.
4
Finish
Choose your stone: the top and legs take its color and veining.
Preparing your stone…
Drag to rotate · scroll to zoomEngineering: ReinforceBuilds once the reinforcement below is addedNeeds attention
- Installers 8
8 installers plus lifting equipment (vacuum lifter or A-frame); heaviest piece 641 lb.
All checks
- Slab fit120 x 55 in
- Floor anchor-
- Overhang19.1 in / 24 in
- Span between supports53 in / 833.3 in
- Stability factor9.2x
- Leg slenderness11.7 : 1
- Leg-to-top joint37.6x
- Hidden steel-
- Weight922 lb
- Thickness and stone6 cm laminated (3+3)
- Floor under the supports461 lb
Planning study, not a certification. Generic material values; the shop confirms supports, connections and handling on the real slab before any cut.
AT SCALE
Your table next to a person.
IllustrativeIllustrative. Illustrative until your slab is reserved: the stone shown is a real catalog slab at its true size, not yet yours. The screen does not replace the slab: color, veining and finish vary by lot and light.
THE SLAB · VEIN
Choose where on the slab your top is cut.
Turn the vein and slide the top across the slab, as a fabricator does at the rack. The photo is the stone's catalog slab at its catalog size: a bigger table shows more stone, and the vein never stretches — it only moves.
- Reference slab size · this stone lists no slab size
- It fits this slab at this angle. The top uses about 48% of the slab face.
- No verified catalog photograph for this stone yet: the cut-out is shown on a plain slab.
- Planning: waterfall legs and base panels are laid out next to the top on the same slab, so the vein runs on across each fold. Our team draws them at fabrication review.
Catalog photograph mapped to the slab's catalog size; the slab you reserve will look different. Not approved for cutting.
The layout above shows only the tabletop, kept whole when it fits. The base, built-up edges and assembly panels need a separate fabrication breakdown. The count below is an area allowance, not a complete table nesting.
PRELIMINARY STUDY
Choose a base. Understand the support.
Engineered quartz · Laminated 6 cm (3+3) · Dining table · 96 × 42 × 30 in
Generic engineered quartz values, not tests of the actual slab. Assumes the modeled load, effective section and supports. Laminated stiffness, steel, joints, anchorage, defects and handling are not independently verified.
No alerts in this simplified studyTwin Mitered Blades · Stone
Tips
Stone or steel changes more than the look. Compare concepts here, then have the actual slab, base and connections reviewed together.
- Span: the distance between supports under the stone.
- Overhang: how far the stone extends beyond its support.
- Connections: how the top, base and floor work together. Appearance alone does not confirm stability.
Two blades near the Airy points (21% from each end) equalize center and end deflection, pulled in when the material's overhang limit is closer.
σ = 3PL / (2·b·t²) against MOR/4 · tipping SF ≥ 2, including a 75 lb child on the edge · supports near the Airy points (21.13%).
- Assembled weight
- 922 lbtop 641 · base 282
- Handling estimate — confirm method
- 8 people90 lb / person
- Model span limit
- 833.3″clear span here 53″
- Worst overhang
- 19.1″limit 24″
- Tipping factor
- 9.2×minimum 2.0
- Area-based slab allowance
- 1120 × 55 in slab
Why
- Overhangs within limits: the worst is 19.1″ against 24″ allowed.
- Bending on the 53″ span: σ = 64 psi against 1,000 psi allowed, 94% to spare.
- Tipping factor 9.2, above the 2 minimum.
How it is built: cut list and joints
| Piece | Size | Weight |
|---|---|---|
| Mitered blade A | 25.2 × 27.6 × 2.4″ | 141 lb |
| Mitered blade B | 25.2 × 27.6 × 2.4″ | 141 lb |
| Top | 96 × 42″ · 6 cm | 641 lb |
| Joint | How it is made | Margin |
|---|---|---|
| Blade → top (×2) | Structural epoxy (ASTM C881) + 2 threaded-rod pins ⌀½″ per blade, 4″ embedment | 37.6× |
Before this design can be made
- Confirm actual stone, thickness, defects and any reinforcement.
- Review the expected use, loads, support locations, steel sections and connections.
- Confirm anchors, floor conditions, handling and the installation method. No automatic fabrication release.
All 19 bases for this top
10 build · 8 build with reinforcement · 1 can't be built as drawn
Tips
Green: builds in this study. Amber: builds once the reinforcement on the card is added. Red: can't be built as drawn; the card names the check that fails. Choose a card to study that base.
Preliminary study — not for fabrication, CNC or installation. A qualified professional must verify loads, material, support and connections for the actual project before release.
ENGINEERING GUIDE
How each stone behaves, and what can and can't be built.
Open the guide: bending, overhang, tipping and joints by material
Bending: thickness counts twice
Stone is far stronger squeezed than bent, so the question is always the clear span between supports. The study compares the bending stress of the widest span, σ = 3PL / (2·b·t²), with the material's breaking strength divided by 4. Thickness is squared: a 6 cm laminated top carries four times what a 3 cm top carries over the same span.
Overhang: how far past the support
Each stone has a free-overhang limit at 3 cm (table below). 2 cm keeps 60% of it, 4 cm laminated 115%, 6 cm laminated 160% and the 1.2 cm panel 35%. Past the limit the study hides flat steel bars under the top; past 1.8× the limit it says the top can't be built that way.
Tipping: weight against leverage
Someone leans on the edge with the load of the chosen use, and a 75 lb child may hang from it: the table's weight times its lever must beat that load times its lever 2 times over. A pedestal also needs a floor footprint of at least 40% of the top's longest side. Supports near 21.1% of the length from each end keep a long top flattest.
Joints: glue carries shear
Glued joints are checked for shear through the bonded area at 250 psi structural epoxy. A mitred edge gives the look of a thick block, not its strength: structurally it is still the 2 cm slab.
| Material | Weight of one square foot at 3 cm | Breaking strength (MOR) | Free overhang 2 cm · 3 cm · 6 cm laminated (3+3) | Largest clear span · dining table, 42″ wide 3 cm · 6 cm laminated (3+3) |
|---|---|---|---|---|
| Granite The workhorse: strong, dense and forgiving, the reference the rules were written against. | 16.5 lb | 1,500 psi | 7.2″ · 12″ · 19.2″ | 78.1″ · over 144″ |
| Quartzite Harder than granite, with dramatic movement. Confirm it is true quartzite, not soft marble sold as one. | 16.2 lb | 1,800 psi | 7.2″ · 12″ · 19.2″ | 93.7″ · over 144″ |
| Engineered quartz · your stone Resin-bound, with very high and consistent bending strength. Not for outdoor use or high heat. | 14.6 lb | 4,000 psi | 9″ · 15″ · 24″ | over 144″ · over 144″ |
| Marble Beautiful but soft and veined: a vein is a natural fracture plane. Conservative overhang. | 16.5 lb | 1,000 psi | 4.8″ · 8″ · 12.8″ | 52.1″ · over 144″ |
| Dolomite The super-white family. Treat it like marble structurally, despite the quartzite look. | 17.5 lb | 900 psi | 4.8″ · 8″ · 12.8″ | 46.9″ · over 144″ |
| Onyx Translucent and fragile, almost always mesh-backed. An onyx table needs a substrate or a steel base. | 16.7 lb | 800 psi | 3.6″ · 6″ · 9.6″ | 41.7″ · over 144″ |
| Porcelain Very strong in bending but thin and brittle: it chips at cutouts and unsupported edges. A full substrate is recommended. | 14.8 lb | 5,000 psi | 3.6″ · 6″ · 9.6″ | over 144″ · over 144″ |
| Sintered stone Ultra-compact, with high and predictable bending strength, but sharp corners chip and cutting needs dedicated tools. | 15.3 lb | 5,500 psi | 4.8″ · 8″ · 12.8″ | over 144″ · over 144″ |
| Soapstone Dense, non-porous and soft to the touch; scratches fade with oil. Small slabs. | 17.8 lb | 1,400 psi | 6″ · 10″ · 16″ | 72.9″ · over 144″ |
| Travertine (filled) Filled voids stay a weak point. The most conservative stone on this list. | 15.7 lb | 700 psi | 4.8″ · 8″ · 12.8″ | 36.5″ · over 144″ |
What can't be built as drawn
- A seamless top must fit one slab of that stone, turned if needed. A top larger than the slab needs a seam, and this study never adds one.
- The 1.2 cm panel is made only in porcelain and sintered stone, always over a substrate.
- A cantilever base must be anchored to the floor.
- Marble and dolomite are veined, and a vein is a natural fracture plane: their limits sit well below granite's.
- Onyx and filled travertine get the most conservative limits; onyx is mesh-backed and wants a substrate or a steel base.
Planning study with generic values for each material family — not tests of your slab and not a structural certification. A qualified professional verifies the actual slab, base and connections before anything is made.
A study of shape and proportion. Available thickness, support, cutouts and construction are confirmed before fabrication.