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wood i joists CAD:
ARCAT Free Architectural CAD drawings, blocks and details for download in dwg and pdf formats for use with AutoCAD and other 2D and 3D design software. By downloading and using any ARCAT content you agree to the following [license agreement].
1c - I-Joist Rim Joist
1g - Interior I-Joist Blocking
1n - I-Joist Bevel Cut
1u - Double I-Joist
