Stone Cladding Clamps: L, Z, Chair & T Clamps Explained
Granite and marble cladding is heavy, and a facade panel that slips or falls is dangerous. Choosing the right clamp – and fixing it properly into the wall – is what keeps the stone safe for decades.
Types of cladding clamps
| Clamp | Typical use |
|---|---|
| L clamp | Supporting and restraining stone at the top or bottom edge of a panel. |
| Z clamp | Where the stone sits further from the wall and needs an offset. |
| Chair clamp | Load-bearing support carrying the weight of the panel from below. |
| T clamp | At joints between two panels, holding both edges with one clamp. |
Why stainless steel matters
Clamps sit behind the stone where moisture collects and cannot be inspected. Mild steel or poorly coated clamps rust and can fail without warning. Use stainless steel clamps – a higher grade for coastal or polluted areas – and stainless steel anchors and bolts with them. Cheap clamps often cost more later in repairs and safety risk.
Fixing the clamps to the wall
- Concrete: stainless steel bolt anchors or chemical anchors.
- Brick or block: chemical anchors with mesh sleeves.
- Keep edge distances and spacing as per design, and test sample anchors with a pull-out test on important facades.
Installation tips
- Use the clamp size and thickness specified for the stone weight and thickness.
- Cut slots or holes in the stone accurately so the clamp pin seats fully.
- Do not mix stainless and mild steel parts in one fixing.
- Allow movement joints as per the facade design.
Buy cladding clamps
Fasteners King supplies stainless steel L, Z, chair and T clamps with matching anchors across Delhi NCR and India. See the stone cladding clamp range or call +91 90057 00569.
Frequently asked questions
Which clamp is used for granite cladding?
Usually a combination: chair clamps to carry the weight and L, Z or T clamps to restrain the panels, as per the facade design.
Can I use mild steel clamps to save cost?
It is not recommended. Hidden clamps rust over time and can fail. Stainless steel is the safe choice.
Which anchor should I use with cladding clamps?
Stainless steel bolt anchors in concrete, or chemical anchors in brick and block. See our anchor selection guide.