The barn of many planes and angles.

The greenhouse continues to evolve, and today we erected wall number two or the "far end" of the structure and another set of pivot blocks and XZ ties were used in a similar fashion to make the wall approximately square to the approximately level base. 

The whole frame is surprisingly square, despite our low standards.

It was quite a bit of fun, especially when installing the two upper side beams which involved stretching, ladders, some danger and balance, all of which went together quite well and the fore and aft stiffness (XZ) of the structure is good, some play in the side to side stiffness (XY) at wall two end, but that is expected as it is weaker in that plane than wall one with the stiffness of the 4" x 4" door posts and the play will reduce each time we add more side wall, or populate the middle rectangle of that second wall, which will include a (free) fitted 35" x 59" two pane window and wood in the lower 20" or thereabouts. 

There may eventually be short 45 degree inner ties at each corner to increase the stiffness and provide more real estate for hanging baskets. We will leave those until later as we observe how continuing the greenhouse with the wood framed windows increases the rigidity. There will definitely be at least one temporary external tie beam installed in the XY plane to pull wall two so that a small, mostly optical, vertical offset is corrected on that stud wall, that will be on the lower far right side.

 

There will be many opportunities to hide tolerance gapping, which we have decided is more of a feature than a flaw. There are some slightly out of plane uprights which will be corrected, or disguised, as time goes by, but after all, we don't really care as it is our greenhouse, made with our own hands on a really low budget, and our own tomatoes and peppers will taste far better than any from a five star construction costing ten times as much.

The next stage is to reinstall the front door step and then paint/stain the structure before the next phase, we're not decided on the roof design yet, but we have the materials so that could be next.