The son of painter Alejandro Ferrant, he began his artistic education in his home town, first at the School of Arts and Crafts and later at the San Fernando Academy. In 1910 he won second prize at the National Exhibition. He traveled to Paris in 1913 and was bowled over by Futurism, later establishing a correspondence with Marinetti. He also travelled to Belgium, Germany and Italy. He taught at the School of Arts and Crafts of La Coruña from 1918 to 1920, contributed to the magazine Vida, and in 1923 published a series of theoretical articles in the magazine Alfar on ‘Sculpture and its Field’.
He continued teaching at the Llotja School of Fine Arts in Barcelona, where he lived between 1920 and 1934, and joined the group Els Evolucionistes. In 1925 he took part in the Exhibition of Iberian Artists in Madrid as well as a joint exhibition with Gabriel García Maroto at the Association of Basque Artists in Bilbao. In 1926 he won the National Sculpture Competition. The following year, thanks to a scholarship from the Board for Further Education, he travelled to Vienna. During this period he produced the magnificent bas-reliefs of bullfighting, and the Head of a Woman (1927), which showcase the fresh figuration he adopted in his sculpting.
At the beginning of the following decade, his work evolved towards a language in which surrealism and geometry converged, close to the spirit of Abstraction-Creation. In 1931 he held an exhibition with Francesc Domingo at the Syra Gallery in Barcelona. In 1933, sponsored by ADLAN, of which he was a member, he exhibited his reliefs – which often included found objects – at the Syra Gallery again, one of which was displayed on the GATCPAC stand at the Barcelona Trade Fair that year. The monograph My Objects (1934), featuring his own and Gasch’s texts, reflects this period.
In 1934 he settled in Madrid. In addition to collaborating with La Barraca, he was the main driving force behind ADLAN along with Guillermo de Torre. In 1936 he took part in the Surrealist Objects Exhibition at the Charles Ratton Gallery in Paris, in the Logicofobista Exhibition in Barcelona, and in the Contemporary Art Exhibition organized by ADLAN-Tenerife.
He spent the Spanish Civil War in Madrid and Valencia, remaining loyal to the Republic. At the end of the conflict, his role was pivotal to the up-and-coming generations, constituting a fundamental point of reference for the early abstracts – he was involved in the Altamira School – and for the members of Dau al Set and El Paso. His small wood and stone sculptures and his mobiles date from the 1940s. At the Venice Biennale in 1960 he showed his sculptures in iron. In accordance with the instructions he left on his death, much of his work was destroyed.