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Wood Retaining Walls

Materials: Pressure treated Douglas Fir no. 2 Post @ 6 FT. O.C. H Post Size 3 FT. D 2 x 10, 3 x 8 6 x 6 5 FT. 4x4 6 FT. Stringers Post @ 4 FT. O.C. Post Size 6x6 4x4 D 4 FT. 5 FT. 2x Stringer

6 x 6 4 FT. 2 FT. 4x4 5 FT. 2 x 8, 3 x 6

6 x 6 3' - 3" 4x4 4 FT. 2x

Notes:

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Where a particular stringer size is given, a larger member of the same thickness may be used. Example: 2 x 10 or 2 x 12 may be used where chart calls for 2 x 8. In all cases, use minimum 6 inch wide stringer. Wall design is for level backfill with no surcharge. Adequate means for drainage should be provided.

Page 1 of 1 August 2, 2005

San Luis Obispo County Planning and Building Department Wood Retaining Walls

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