The structure is engineered to the climate data of Sudbury, the largest city in its proximity. It uses composite and shared assemblies of 2X8 and 2x12 treated cedar lumber as beams and joists, and it is finished with 1X6 cedar deck boards that has a 1” dripline extension beyond the fascia beam. At the widest spans, it uses TJI 560 (timber I-joists). Specifically, the beams are designed as parallel shared systems, bolted to the sides of the columns. The columns of the boathouse are 6X6 timber that are fixed to concrete piles on the island and ballasted timber cribs in the water. These columns continue to the rooftop patio as balusters for the cable guards. The ends of the patio is not guarded and is intended for potential diving (it is advised to survey the depth of the water before allowing diving). The docking portion of the structure is diagonally braced with timber members along the short sections of the boathouse. The rear part of the boathouse is braced with the walls of the storage rooms. Overall, the porosity of the framing design invites air and sun.

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Climate and Structural Data