This fictional patent describes a system interested in simplicity of both materials and methods. It’s a way of stacking horizontal “sticks,” which here are lengths of dimensioned lumber with 4’ square cross-sections. Within the system, two or more notched timber beams are stacked, with alternating layers, each oriented at 90 degrees relative to the previous.
This method of construction is suited to temporary installations, deconstruction, and reconstruction, and structures like this could be built almost anywhere. It’s even imaginable that sets of beams could be manufactured with excessive notching to create a kit of parts from which varied assemblages could be composed.
Although the Stick Stack is a frame system, it’s a high-density one composed of only horizontal members. Beams generate enclosure through screening or by creating panel-like “walls” as well as other more solid structures which could include stairs, counters, benches, etc.
Through varying the placement of beams relative to those below, vertically undulating and arching structures can be composed of orthogonal, fastener-free, 100% wood components. Such forms not only generate visual and spatial interest but also increase structural stability. Stability is also ensured by a lap joint at each intersection of two beams. Through an efficient system of “reciprocal” notched joints, each beam is stabilized laterally in the two horizontal dimensions, one at either end.
The majority of this structure’s components are convenient lengths of 8’ or 16’. However, notice the square “end caps” which provide lateral stability, “closing” wall forms. The “stick stack” method of construction requires this closure for lateral stability. Not only does the pavilion hug an existing path here, but it also nestles into the trees which line the edge of the San Francisco Botanical Garden’s main lawn.
In section, the repeating overhead forms are clear. The cafe is on the left here, while the larger, more open space to the right functions as a gathering area, an event space, and an outdoor classroom.
As this design straddles the existing path on the site, it’s hoped that both the path and the structure will feed off of each other, generating interaction and activating the immediate area. Where the structure meets the ground, beams can simply rest on, or in the case of uneven ground, be embedded into the soil.
With this stacking system, structures like this pavilion could be constructed by unskilled workers just about anywhere, simply stacking and slotting pieces into place. I’m interested in how this system could enable and encourage construction as a cooperative and productive community-building activity. And, of course, the system has within it the promise of opportunities for much more varied forms and spaces than have been explored here.
curved glulam pavilion elevation with shading to call out three different component units
curved glulam pavilion plan
reciprocal pavilion elevation
reciprocally stacked pavilion plan
previous pavilion ideas developed in the first weeks of this class
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