"Can I hang a TV on AAC?" is the most common worry when owners switch from brick. The answer is yes — with the right anchor.
Why Ordinary Plugs Fail
AAC is light and cellular. A short plastic plug relies on squeezing the hole wall, and in AAC that wall crumbles under pressure, so the plug pulls out. AAC anchors either spread their grip over a long length, cut a thread into the material, or bond chemically.
Anchor Types
| Anchor | How it holds | Typical use |
|---|---|---|
| Long nylon frame anchor | Expands over a long length | Shelves, frames, light cabinets |
| Helical / spiral metal anchor | Hammered or screwed in, grips along a spiral | Medium loads |
| Chemical (resin) anchor | Resin bonds the rod to the block | Heavy loads, geysers, brackets |
| Through-bolt with plate | Clamps both faces | Very heavy items, where both faces are accessible |
Follow each product's rated load for AAC, which is lower than for concrete.
Drilling Correctly
- Rotary mode, no hammer action.
- Correct bit size for the anchor.
- Clean the hole of dust, especially for chemical anchors.
- Do not over-tighten, which can crush the surrounding block.
Plan Heavy Fixings Early
| Item | Plan |
|---|---|
| Kitchen wall cabinets | Grounds or anchors marked on drawings |
| Geysers | Near an RCC member, or chemical anchors |
| Large TV | Mount position marked; heavy-duty anchors or a concrete member |
| Air conditioner indoor units | Anchors rated for the unit and bracket |
| Grills and gates | Fixed into RCC or with through-bolts |
The Short Version
Use AAC-rated anchors, drill without hammer action, respect the rated loads, and plan heavy fixings near concrete before the walls are plastered.
