Sintered stone price: 240 x 120 cm per slab and per m²
Short answer: market price for a 240 x 120 cm slab is Rp 1.800.000 to Rp 2.100.000, or about Rp 625.000 to Rp 730.000 per square metre. One slab covers 2.88 m2.
Market price table
| Type | Per slab | Per m² |
|---|---|---|
| 9 mm, market look | Rp 1.800.000 - Rp 2.100.000 | Rp 625.000 - Rp 730.000 |
| 12 mm, retail look | Rp 2.540.160 - Rp 3.899.520 | Rp 882.000 - Rp 1.354.000 |
Compiled from public supplier price lists in Indonesia, October 2026. Market reference, not an ALTARA quotation, and not a price commitment.
What moves the price
| Factor | Effect |
|---|---|
| Thickness | 12 mm costs more than 9 mm because there is more material |
| Look | Bold veining and bookmatched pairs sit above calm looks |
| Batch | A new batch can price differently from remaining stock |
| Quantity | More slabs in one order leaves room to negotiate |
Estimating common jobs
| Job | Area | Slabs |
|---|---|---|
| Worktop 3 m x 60 cm | 1.8 m2 | 1 slab in 240 x 120 cm |
| Island 2.4 m x 90 cm | 2.16 m2 | 1 slab |
| Worktop 3 m plus splashback 3 m x 60 cm | 3.6 m2 | 1 slab if the cut plan allows |
| Vanity 1.2 m x 50 cm | 0.6 m2 | 1 slab, with a large offcut for other surfaces |
Add 10 to 15 percent for cutting mistakes and spares. Keeping the offcut is cheaper than ordering a new slab in a different batch later.
Total cost of a kitchen set
The 240 x 120 cm format is often chosen because the slab is cheaper, but the total can change with slab count and joins.
| Component | Range | Note |
|---|---|---|
| Material, one 9 mm slab | Rp 1.8 - 2.1 million | Market look, retail price |
| Material, one 12 mm slab | Rp 2.5 - 3.9 million | Retail look, full thickness |
| Cutting and edge profile | Rp 0.4 - 1.2 million | Higher where there is a join |
| Sink and hob cut-outs | Rp 0.2 - 0.6 million | Per opening |
| Delivery and installation | Rp 0.6 - 1.8 million | Access and slab count |
A 2.4 m worktop with one 9 mm slab lands between Rp 3 and 4.5 million. A 3 m worktop with two slabs and a join costs more, because the join has to be fabricated and set.
9 mm against 12 mm
The gap between 9 mm and 12 mm is large in this format, and it is not always worth paying. With a fully supported top, 9 mm is adequate. Where the span is not supported in the middle, 12 mm is safer.
The expensive mistake is not the thickness, it is changing your mind. A slab cannot be swapped after cutting, and ordering 9 mm for a long span ends with extra support that costs as much as the difference.
Buyer questions
Short answers for buyers comparing looks, formats and prices.
What does a 240 x 120 cm sintered stone slab cost?
Market range is Rp 1.800.000 to Rp 2.100.000 per slab at the common thickness. Specific looks cost more, and promotional retail prices can sit well below list.
What is the price per square metre for 240 x 120 cm?
One slab covers 2.88 m2, so the square metre price is the slab price divided by 2.88 m2. Market range is Rp 625.000 to Rp 730.000 per square metre.
What is not included in the square metre price?
Cutting, sink cut-outs, edge profiles, delivery and installation. On a kitchen, fabrication can cost as much as the difference between suppliers, so compare the total.
Why is the price per square metre lower on small formats?
Not because the surface is worse, but because the slab is smaller and thinner. A 240 x 120 cm slab in 9 mm uses less material than a 320 x 160 cm slab in 12 mm.
How do I estimate slabs and total cost?
Measure the panel area, divide by the area per slab, round up, then add 10 to 15 percent for offcuts. Multiply by the slab price and add fabrication and delivery.
Read next: 240 x 120 cm format · All looks · Price guide · Kitchen worktops