Draw a rectangle on top of the slab. Use the "Wood Framing" tool. Select "Deck Joist". Set spacing to 16" OC, direction along the length. The plugin will generate all joists, rim joists, and blocking automatically.
Build vertical walls from a 2D footprint and quickly cut openings for doors and windows with custom frames. sketchup plugin 1001bit
Includes a vastly expanded library of tools (around 40+), allowing for more sophisticated customization of roof structures and framing. It is available via the official 1001bit website Conclusion Draw a rectangle on top of the slab
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