Curtain Call: A Robot-Marked Timber Pavilion at Bethel

The Bethel Woods Center for the Arts is built on the site of the original 1969 Woodstock festival in upstate New York. Every summer it hosts BuildFest, a design-build competition for small pavilions in the fields around the museum. Curtain Call Pavilion, designed by office office, won the 2024 BuildFest. It is a timber lattice structure with a translucent red construction-mesh canopy, built on a grass meadow and assembled on site in four days using a workflow the team calls Human-Robot Collaborative Construction (HRCC).

The pavilion is a reference to the Woodstock stage's original timber tectonics, reinterpreted with contemporary fabrication tools. The columns, beams, and trusses are dimensional lumber bolted together. The red mesh above is ordinary construction safety fabric, stretched to create a glowing canopy that casts a pink light onto the timber below. The result is a simple, readable structure that doubles as a demonstration of how robots and humans can share a construction process.

The Pavilion on the Meadow

From a distance, the pavilion is a rectangular timber frame on a raised wooden deck, with a red canopy floating above. The columns are painted with horizontal red stripes that match the mesh, tying the structure together visually. On the grass, the shadow of the truss grid runs in stripes alongside the building. A timber stage-like step extends from one end, doubling as informal seating and a performance platform.

The Timber Lattice

The structure is a dense lattice of dimensional lumber. Vertical posts support a field of trusses that run in two directions, creating a coffered ceiling of crossed timbers. The posts have red painted stripes at regular intervals. Walking through the pavilion, the experience is of moving through a forest of timber columns and under a canopy of rafters. The floor is a slatted timber deck that drains through the boards.

The Red Mesh Canopy

The canopy is construction safety mesh, a cheap and instantly recognisable building-site material, used here as an architectural finish. Stretched between the timber rafters, the mesh glows in the sun and turns the light pink inside the pavilion. The translucency means the canopy reads differently from every angle: solid red from above, filtered pink from below, striped with shadow on the grass.

The Robot and the Humans

The project's most ambitious claim is in the construction method. The team built a low-cost timber-marking robot: a small aluminium gantry with a marking head that inscribes drilling and connector locations directly onto each timber member. Every piece of lumber passes through the robot before it goes to the workshop. When the human builders assemble the structure, they follow the robot's marks, which tell them exactly where to drill, where to bolt, and which joint connects to which other joint.

The marks are left visible on the finished pavilion as a construction record. You can walk up to any truss and read the numbers the robot inscribed. The collaboration is transparent: the robot does the geometry, the humans do the assembly, and the building holds both kinds of labour in equal view.

Construction: Four Days on the Meadow

The pavilion was assembled in four days by a small team. The students and builders carried the prefabricated timber members out onto the meadow, followed the robot's markings, and bolted the structure together on site. A few workers on ladders stretched the red mesh over the completed frame to form the canopy. The choreography of the build appears in several photographs: a line of people passing timber members, a worker on a ladder in a hi-vis vest, three builders lifting the mesh over the frame.

The fabrication is deliberately simple: dimensional lumber, bolts, steel connectors, and a marking robot. No CNC, no robotic arms, no parametric joinery. The complexity is in the layout, not in the machining. This makes the system cheap, reproducible, and scalable to teams of non-specialists.

Drawings

The axonometric, roof plan, and elevation drawings show the pavilion in context: a timber rectangle on a deck in a meadow, with a truss roof and an overhanging red canopy. The elevation includes figures, a piano under the structure, and distant trees, hinting at the pavilion's intended use as a small performance space.

The render shows the completed pavilion from a three-quarter angle, with the red mesh canopy stretched above the timber lattice. A photographer crouches at the left edge. Figures sit under the structure. It is a small building, but the presence it projects is larger than its footprint.

Why This Project Matters

Design-build pavilions are everywhere in the architecture-school ecosystem, and most of them demonstrate either parametric geometry or robotic fabrication. Curtain Call does something different: it uses a simple marking robot as the only automated tool in an otherwise conventional timber build. The collaboration between the robot and the human builders is visible, legible, and humane. The red construction mesh is a clever choice of canopy material: cheap, familiar, and surprisingly beautiful when stretched over a timber frame.

If you are interested in design-build pedagogy, human-robot collaboration, or temporary pavilions, this project is worth studying for how it uses a tiny automation tool to change the logic of a timber build without making the result inaccessible.

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Project credits: Curtain Call Pavilion by office office. Bethel Woods Center for the Arts, Bethel, New York, USA. 2024 BuildFest winner. Photographs: Alon Koppel, Breyden Anderson.