Simpson Strong-Tie CB Column Bases

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SKU: SIMP CB Category:


Simpson Strong-Tie CB Column Bases

CB column bases help connect posts to concrete for a broad range of members. CB bases accommodate glulam and solid sawn members ranging from 4″x4″ up to 12″x12″.


Strap: CB4x, CB5x, CB6x — 7 gauge; CB7x and larger — 3 gauge
Base: CB4x through CB9x — 7 gauge; CB10x — 3 gauge


CB44, CB46, CB66, CB68 — galvanized; all other CB — Simpson Strong-Tie® gray paint or HDG.


  • Use all specified fasteners; see General Notes
  • For full loads, minimum side cover required is 3″
  • Install all models with bottom of base plate flush with concrete
  • Post bases do not provide adequate resistance to prevent members from rotating about the base and therefore are not recommended for non-top-supported installations (such as fences or unbraced carports)

Technical and Installation Notes

Additional information


CB44 – 4×4, CB46 – 4×6, CB66 – 6×6, CB68 – 6×8, CB7186 – PSL/7-1/8×6