Riser

'The weight of a drawing derives not only from the number of layer of paintstick but mainly from the particular shape of the drawing. It is obvious - from Mantegna's Christ to Cezanne's apples - that shapes imply weight, mass and volume. A square carries more weight - gravitationally - than a rectangle: a trapezoid more than a diamond. A triangle is a light, very quick shape. (...) In the process of covering a canvas with paintstick, moving from the inside out, I often find the solution needed in terms of weight and space of the drawing in relation to the total field of the wall and the total volume of the space'

(Richard Serra, as quoted in S. von B.-W., Richard Serra Prints Catalogue Raisonne 1972 - 1999, p. 20)