The positioning of steel reinforcement should be as per the Thermacell Residential Engineering Design Manual.

Usually, the steel required for a Thermacell house is one Y-12 reinforcing bar on either side of each window and doorway on the external walls. A Y-12 bar is set in the walls above the windows to create a lintel.

For windows wider than 2 metres, a Y-16 bar may be used. For very wide windows or openings, additional engineering may be required at your expense.

A Y-12 bar is usually placed continuously around the top course of external walls, which creates a bond beam.

No reinforcement is required in internal walls where trusses are used, as they are non-load bearing.

In the case of double garage door openings (approx. 5m span) we recommend the use of two courses (600mm) of 200mm or 250mm blocks or 1 course of the 200mm blocks plus a 150mm lintel block.

The steel reinforcement required would be two Y-16 bars at the bottom of the beam and two Y-16s at the top, connected by 6mm ligatures every 250mm. The Y-16 bars should exceed the doorway by at least 500mm on either side.

An engineer’s certificate for all reinforcement may be required with your plans.


Over the nearly thirty years Thermacell has been in business, we have worked with several different builders, construction companies and tradesmen. We have compiled a list of just some of these builders and tradesmen Read More

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