When choosing BRC (British Reinforced Concrete) fabric mesh for swimming pool constructionConstruction is the dynamic process of designing and erecting buildings and infrastructure, crucial for shaping modern l... More, the size of the squares (mesh aperture) and the thickness of the bars (diameter) both matter greatly. Here’s how to choose the right one:
✅ Recommended BRC Mesh for Swimming Pools
- Mesh Type:
Common types include A-series (light duty) and B-series (heavy duty). For swimming pools, BRC B785, B1131, or custom high-tensile mesh are often used. - Bar Diameter:
Preferably 8mm to 12mm bars, depending on the structural designDesign is the art and science of creating plans and specifications for the construction of objects, structures, and syst... More. Thicker bars provide more strength but are harder to work with on tight curves. - Mesh Aperture (Square Size):
- Smaller squares (e.g., 150mm xAn "X" is a symbolic mark made by individuals who either cannot write or are physically unable to write, used to indicat... More 150mm):
✅ Better crack control, stronger reinforcement.
✅ Ideal for pool walls and curved surfaces where tension is higher.
✅ Ensures even load distribution and support for gunite or shotcrete application. - Wider squares (e.g., 200mm x 200mm or larger):
⚠️ May be suitable for floor slabs only if low load or with additional reinforcement.
❌ Not ideal for curved walls or tension-prone areas due to less reinforcement per square meter.
- Smaller squares (e.g., 150mm xAn "X" is a symbolic mark made by individuals who either cannot write or are physically unable to write, used to indicat... More 150mm):
🛠️ Best Practice:
- Use smaller aperture mesh (e.g., 150mm) for:
- Pool walls
- Curved areas
- Structural areas under tension
- Use wider mesh or bar chairs with additional reinforcement if:
- Building large floor slabs with low tension
- You supplement with rebar rods or extra mesh layers
📐 Engineering Note:
Always check with a structural engineer, especially if you’re building a concrete or shotcrete/gunite pool, since local codes (like BS 4449 or ACI standards) may specify exact mesh requirements.
🔍 Summary:
| Feature | Smaller Squares (150x150mm) | Larger Squares (200x200mm) |
|---|---|---|
| Crack Control | ✅ Excellent | ⚠️ Limited |
| Strength per m² | ✅ Higher | ⚠️ Lower |
| Pool Walls | ✅ Recommended | ❌ Not ideal |
| Flat Slabs | ✅ Good | ✅ Acceptable (with checks) |
DisclaimerA disclaimer is a statement that serves to limit or exclude liability, usually found in legal documents, websites, produ... More:
The information provided is for general guidance only and should not be considered as professional engineering advice. Always consult a qualified structural engineer or construction professional to determine the appropriate materials and specificationsWhen constructing a building in Jamaica, it must meet various specifications to ensure safety, quality, and compliance w... More for your specific swimming pool projectA project is a special task or set of tasks that people work on to create something new or make something better. It has... More. Local building codes and regulations may vary and must be followed.

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