A support that comes back round
The name Beugel directs attention to the chair’s hoops. Instead of disappearing into the background, curved steel supports give Gerrit Rietveld’s seating an open outline. Centraal Museum records the Beugel design in 1927.1 The pleasure of looking at it comes from following a support around the sitter and back towards the floor.
The frame encloses space without filling it. Gaps remain useful parts of the appearance: light passes between the supports, and the seating surface reads as a comparatively thin layer held within them. The chair has a body, but it gives much of the room back.
Two materials, different sorts of curve
Centre Pompidou’s armchair record lists curved steel, moulded plywood and wooden armrests, and credits Gerard van de Groenekan as maker.2 These materials describe different tasks. Steel traces the supporting route; the plywood provides a broader surface for contact; the arms mark another place where the sitter meets the object.
A hoop and a shaped sheet need not follow the same curve. Their differences make the construction readable. Look first at the edge of the seat, then at the space beside it: one defines where the body goes, while the other allows the support to remain visible. Thinness becomes a relationship between parts, rather than an absence of material everywhere.

A family worth looking at closely
The two museums document different Beugel examples. Their dimensions and detailed material descriptions belong to those records, rather than to every chair carrying the name. That variety makes the family more interesting: an organising idea can survive changes of version.
Once the hoops are noticed, a familiar question changes. Instead of asking why the chair has so little in it, ask how clearly it distributes what is there. A continuous outline, a shaped surface and open air each get a useful role.

