Reply by Ghidrah

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Posted on Help with shop floor please

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667 posts in 2239 days

#1 posted 05-30-2015 09:10 PM

You’re going to have a helluva time side walling and installing winds along the property line let alone direct nailing the joists to the inner box. Are you sure the local town/building dept abutment variance allows for structures to be that close?

1st you need to run a string through the center of the girt as an alignment gauge. Rip and point 2×4s, bang them in the ground and use them to straighten and hold the girt in place. From the girt line meas out 8’ then subtract the doubled box, (actual dims) and 1/2 the girt for all joist lengths. Cut and tack in place, cut and nail inner box material in place. Layout and mark the girt and box for joists and any access holes.

If you cut all joists the same, if you ensure the centering line on the girt is dead center the inner box will be straight. Once 5 or 6 joists fastened to one end I would diag that side to ensure square then tack a 10’/2×4 diag across said joists. Continue side one then string along/across diag end for side 2, set 5 or 6 joists then repeat side 1 and fin joists. Install all hangers, snap lines for 1st row ply both sides, and layout ply to match joists, (hard to screw up if do correctly, I suggest marking and using the edge of joist instead of middle make layout line then X to show correct position of joist).

-- I meant to do that!

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