Allegro chair heights with different size aluminum leg extensions.

 

The leg extensions have threaded holes at 1" increments

With 7" (17.8cm) aluminum leg extensions,

chair heights are: 17.5"/44.5 cm (regular); 18.5"/47.0 cm (medium); 19.5"/49.5 cm (tall).

With 8" (20.3cm) aluminum leg extensions,

chair heights are: 18.5"/47.0 cm (regular); 19.5"/49.5 cm (medium); 20.5"/52.0 cm (tall).

With 9" (22.9cm) aluminum leg extensions,

chair heights are: 19.5"/49.5 cm (regular); 20.5"/52.0 cm (medium); 21.5"/54.5 cm (tall).

With 10" (25.5cm) aluminum leg extensions,

chair heights are: 20.5"/52.0cm (regular); 21.5"/54.5 cm (medium); 22.5"/57.2 cm (tall).

With 11" (28cm) aluminum leg extensions,

chair heights are: 21.5"/54.5 cm (regular); 22.5"/57.2 cm (medium); 23.5"/59.7 cm (tall).

With 12" (30.5cm) aluminum leg extensions,

chair heights are: 22.5"/57.2 cm (regular); 23.5"/59.7 cm (medium); 24.5"/62.3 cm (tall).