Building Needs does not deliver AAC blocks to Coimbatore and does not quote Coimbatore prices. Chennai reference rate on 21 Oct 2026: a 6-inch AAC block is ₹71 and a 4-inch is ₹49 per piece, GST included, transport extra. Use them, and the checklist further down, to judge a quote from a Coimbatore supplier.
Building Needs currently does not deliver AAC blocks to Coimbatore, and we do not quote Coimbatore prices. The rates below are today's Chennai rates per piece, shown for reference only; prices from Coimbatore suppliers can differ.
| AAC block size | Chennai rate (per piece) |
|---|---|
| 2 inch | ₹27 |
| 3 inch | ₹38 |
| 4 inch | ₹49 |
| 5 inch | ₹60 |
| 6 inch | ₹71 |
| 8 inch | ₹92 |
| 9 inch | ₹103 |
Building in Chennai? See the full AAC block price in Chennai page, or call +91 63996 96363.
Coimbatore's warm climate makes thermal insulation important in construction. AAC blocks are particularly suited to this because of their cellular structure that traps air and reduces heat transfer through the wall.
| Factor | AAC Blocks | Red Clay Bricks |
|---|---|---|
| Size | 600 x 200 x 150 mm | 230 x 115 x 75 mm |
| Blocks per sq metre | ~8.3 blocks (600×200 face) | ~50 bricks (half-brick, 115 mm wall) |
| Thermal insulation | Excellent | Poor |
| Construction speed | Fast (large size) | Slow (small size) |
| Dimensional accuracy | Very high | Variable |
| Dead load on structure | Low | Higher |
| Cost per sq metre | Slightly higher | Lower |
| Block Size | Use | Mortar Joint |
|---|---|---|
| 4 inch (100mm) | Internal partition walls, bathroom walls | Thin bed mortar (3mm) |
| 6 inch (150mm) | External walls, staircase walls, compound walls | Thin bed mortar (3mm) |
| 8 inch (200mm) | External walls where extra insulation is wanted | Thin bed mortar (3mm) |