The only constraint of the Terrastair design is that it is manufactured to fit a specific gradient, ensuring each tread is horizontal. Rather than being a downside, this inbuilt rigidity represents a number of distinct advantages.

Terrastair is a fully galvanised product supporting longevity of service. Terrastair is of a robust design allowing easy storage. Terrastair design allows sections to bridge irregularities on the slope surface. Obstacles such as hollows, dips, ditches or wildlife paths can be bridged without deflection.

Terrastair can be installed without skilled labour and with minimal tools. It can be installed in any weather unlike concrete or slabbed alternatives.

Terrastair design has been engineered with the possibility of multiple pegging points. Sub surface obstacles such as rocks or roots can be avoided simply by selecting an alternative pegging position.