Non-Combustible Cavity Tray Lintel

The NCCTL integrates the cavity tray directly into the stainless steel lintel, removing the need for a separate cavity tray above the lintel. Patented mechanically fixed stop ends are positioned within the brickwork perpend joints to help manage moisture and reduce additional operations onsite.

The lintel is built into the outer leaf in the normal way, providing easy access to membranes and insulation on the inner leaf once it is securely built into the brickwork.

NCCTLs are specified by brickwork opening dimension because the stop ends are mechanically fixed to the lintel before delivery. The standard range accommodates brickwork openings up to 3047.5mm, with lintel lengths based on the opening size and a 215mm stretcher bond as standard.

Standard, Heavy Duty and Extra Heavy Duty options are available to accommodate different loading requirements. Other variations and cavity sizes are available on request, with technical support available for project-specific requirements.

Correct specification starts with the brickwork opening, loading requirements and brick bond. Keystone Lintels’ technical team can provide guidance where requirements fall outside the standard range or where variations to the standard stop end positions are needed.

Onsite, the NCCTL is installed with a minimum 150mm end bearing, taking account of the position of the mechanically fixed stop ends. The lintel should be bedded in mortar and levelled along its length and width, with the masonry above constructed in accordance with the relevant installation guidance.