The center crossbar is to extend from end to end at the middle of the frames. The middle crossbar of the five on each wall runs the full length of the wall — from one end to the other. The four outer crossbars are shorter, running partial lengths; the center bar is the full-length structural spine. The center crossbar that runs from end to end is the backbone of each wall. The spine that runs the full length at the middle distributes stress across the entire wall rather than concentrating it at joints. The engineering principle of the center spine is also a covenant principle: what holds the structure together must run all the way through it.

COMMUNITY REFLECTIONS

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