Sintered stone price: 320 x 160 cm per slab and per m²
Short answer: market price for a 320 x 160 cm slab is Rp 7.380.000 to Rp 8.000.000, or about Rp 1.443.000 to Rp 1.560.000 per square metre. One slab covers 5.12 m2.
Market price table
| Type | Per slab | Per m² |
|---|---|---|
| 12 mm polished | Rp 7.388.160 - Rp 7.956.480 | Rp 1.443.000 - Rp 1.554.000 |
| 12 mm matte, retail | Rp 7.633.920 - Rp 9.390.080 | Rp 1.491.000 - Rp 1.834.000 |
| 12 mm retail list price | Rp 12.390.400 - Rp 16.384.000 | Rp 2.420.000 - Rp 3.200.000 |
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 320 x 160 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 one kitchen worktop
The slab is one line of the quote. Fabrication and installation decide the rest, because both are priced from edge length, cut-outs and access.
| Component | Range | Note |
|---|---|---|
| Material, one slab | Rp 7.4 - 8.0 million | 320 x 160 cm, 12 mm |
| Cutting and edge profile | Rp 0.5 - 1.5 million | Depends on edge length and profile |
| Sink and hob cut-outs | Rp 0.2 - 0.6 million | Per opening, with or without a drainer |
| Delivery in the city | Rp 0.3 - 0.8 million | Distance and lift access |
| Installation | Rp 0.5 - 1.2 million | Includes setting the join |
A realistic total for one worktop with one slab sits between Rp 9 and 12 million. These are market ranges, not a quotation, and they move with the look and site access.
When the price drops
Price falls when the look comes from older stock, when enough slabs are ordered to take a single batch, and when fabrication is done alongside other work at the same site. It rises when a look has to be ordered specially and when the panel needs precise joins.
Buyer questions
Short answers for buyers comparing looks, formats and prices.
What does a 320 x 160 cm sintered stone slab cost?
Market range is Rp 7.380.000 to Rp 8.000.000 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 320 x 160 cm?
One slab covers 5.12 m2, so the square metre price is the slab price divided by 5.12 m2. Market range is Rp 1.443.000 to Rp 1.560.000 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: 320 x 160 cm format · All looks · Price guide · Kitchen worktops