The Air Brick 215x65mm Square Hole is a durable, utility-grade ventilation component designed to provide reliable sub-floor and wall cavity airflow in standard masonry construction. Manufactured from tough, weather-resistant material, this air brick is engineered to offer long-term resilience against environmental wear, UV exposure, and heavy weathering while maintaining a neutral, functional appearance across various brickwork facades.
 
Featuring a neat square-hole grid pattern, the vent ensures a high free-air cross-sectional area to promote continuous, unobstructed ventilation while restricting larger debris and pests from entering the building envelope. Its slimline 215mm x 65mm dimensions match single-brick height courses precisely, allowing for seamless integration into new brickwork or retrofit projects without the need for complex cutting or alterations.
 
Essential for mitigating dampness, condensation, and timber decay, this square-hole air brick maintains healthy air circulation beneath suspended floors and within structural cavities. Whether you are working on a residential build, repairing masonry, or upgrading sub-floor ventilation, this component delivers professional-grade performance and dependable compliance with standard building requirements.
 
Features & benefits
 
Resistant to frost
Resistant to colour fading
Allows air movement to reduce condensation build up
Holes sized to prevent vermin entry
Weathers well with surrounding brickwork