AAC Block Sizes, Price List & Complete Buying Guide 2026
— By Maruti Hydraulics Limited
Comprehensive guide covering standard AAC block sizes, price ranges per piece and per cubic meter, and factor affecting prices.
AAC (Autoclaved Aerated Concrete) blocks are manufactured in standardised sizes per IS 2185 Part 3, with dimensions varying by application — external walls, internal partitions, or lintel coursing. This guide covers standard AAC block sizes, 2026 price ranges for the Indian market, and the key factors that affect the final price you pay at your construction site.
Standard AAC Block Sizes in India
Indian AAC block manufacturers produce blocks in the following standard dimensions (Length × Height × Width):
600 × 200 × 75 mm — Used for internal partition walls where space is at a premium. Lightweight option for dividing walls in residential apartments.
600 × 200 × 100 mm — The most common block size in India for both external and internal walls in residential construction. Equivalent in wall thickness to a standard 4-inch brick wall with plaster.
600 × 200 × 125 mm — Used for external walls in commercial buildings requiring additional insulation or sound attenuation.
600 × 200 × 150 mm — Standard for external walls in residential villas and individual houses. Provides better thermal mass and structural stability for ground-level walls.
600 × 200 × 200 mm — Used for compound walls, boundary walls, and walls requiring higher thermal insulation (close to a standard 8-inch brick wall thickness equivalent).
600 × 200 × 225 mm and 600 × 200 × 250 mm — Larger blocks for basement walls, retaining wall applications, and industrial buildings requiring structural mass.
AAC Block Price Range in India (2026)
AAC block prices in India vary significantly by region, brand, density grade, and order volume. The following ranges are indicative for 2026 at the plant gate or local dealer level:
100 mm AAC block: ₹35–₹60 per piece (₹2,900–₹5,000 per cubic metre)
150 mm AAC block: ₹50–₹85 per piece (₹2,800–₹4,700 per cubic metre)
200 mm AAC block: ₹65–₹110 per piece (₹2,700–₹4,600 per cubic metre)
Premium brands (Birla Aerocon, Renacon) typically price 15–25% above regional manufacturer pricing. Regional plants near the construction site often offer better value due to lower freight costs, especially for large orders.
Factors That Affect AAC Block Price
Raw Material Costs
Fly ash, cement, lime, and aluminum powder account for 55–65% of AAC block manufacturing cost. Cement price movements (cement accounts for 8–12% of block weight) directly affect block prices. Plants close to thermal power stations have a structural fly ash supply advantage.
Transportation Distance
AAC blocks are relatively lightweight (450–650 kg/m³ vs. 1,700 kg/m³ for red bricks), but transportation cost still adds ₹200–₹800 per CBM for deliveries beyond 100 km. Always compare landed cost (plant price + freight) rather than plant-gate price alone.
Block Density and Grade
Lighter blocks (D450–D550) cost slightly more to produce per CBM due to higher aluminum powder usage and tighter quality control requirements. IS 2185 Grade 1 blocks (lighter, better insulation) command a 5–15% price premium over Grade 2 standard blocks in the same market.
How Many AAC Blocks Do You Need?
For a 100 mm AAC block: approximately 83 blocks per cubic metre of wall. For 150 mm: approximately 55 blocks per CBM. For 200 mm: approximately 42 blocks per CBM. Add 5–7% wastage for cutting and breakage on site. For a 1,000 sq ft (93 m²) single-floor house with 3-metre ceiling height, external walls at 150 mm thickness and internal walls at 100 mm thickness, you will typically need 40–55 cubic metres of AAC blocks total.
For bulk purchase inquiries or to understand AAC block plant investment (producing your own blocks), contact Maruti Hydraulics at +91-253-2308131.