What are 7 cm AAC blocks used for?
7 cm AAC blocks (20x60x7 cm) are a true 7 cm thickness, not 7.5 cm; they are half a centimeter thinner. They are made by THAICON, Diamond, TPI and Smart Block, weigh about 6.3-6.4 kg each and take 8.33 blocks per m². They usually cost a little less per block than 7.5 cm, which makes them popular on budget-conscious jobs.
Applications and grades
- Interior walls and partitions such as bedrooms, storerooms and bathrooms.
- Home additions, back kitchens and shophouse walls that don't need much sound insulation.
- G4 AAC blocks such as THAICON, TPI and Smart Block for higher compressive strength.
- G2 AAC blocks from Diamond, lighter with better heat insulation.
Benefits of 7 cm AAC blocks
A 7 cm wall is light, fast to lay and saves on both blocks and mortar. Use one thickness for the whole wall; mixing 7 cm with 7.5 cm leaves an uneven face. For more sound or heat insulation choose 10 cm AAC blocks, and tie the wall to columns with AAC wall ties every 2 courses. Thin-bed mortar use is about 1.5 kg/m² (one bag lays about 30 m²).
Buy 7 cm AAC blocks at OneStockHome
Order 7 cm AAC blocks at OneStockHome by the block or by the full truck (THAICON 1,400, Smart Block 1,320 per 6-wheel truck). The per-block price drops on a full truck, delivery is charged by weight, and you can add AAC masonry mortar and a AAC block trowel in the 7 cm size to the same order. Current prices:
Brand | Grade | Price per block | Full 6-wheel truck | Price per block (full truck) |
|---|---|---|---|---|
THAICON | G4 | 1,400 blocks | ||
Diamond | G2 | – | – | |
Smart Block | G4 | 1,320 blocks |
