‘In El Matadero there are different windows we made. For some of them we used very simple instruments like clamps, which every carpenters uses for wood. What happened? Usually a window has a casement frame and a window frame and normally you assemble it with nails or mortar, but here we only applied forces. The clamps show you that there are forces. What we did was to reveal off the elements’. 

Arturo Franco, about El Matadero, 27th November 2015 Milan