This photo shows the left side assembly similarly complete and the back girt in place, fixed and clamped. The 2 side top beams (5x4" - 125x100mm like the sill beams) are also fixed to the corner posts using adhesive and 4" galvanised nails.
This shows the back girt clamping in more detail, using 2 linked pairs of clamps to manage the length.
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