CBSQ Column Base

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$36.86 - $705.11


The CBSQ column base uses Strong-Drive® SDS Heavy-Duty Connector screws, which allow for fast installation, reduced reveal, and provide a greater net section area of the column compared to bolts. The 1" standoff (included) meets code requirements for structural posts installed in basements or exposed to weather or water splash.


  • See table


  • Galvanized; some models available in HDG or stainless steel


  • Use all specified fasteners; see General Notes.
  • Install 1/4" x 2" Strong-Drive SDS Heavy-Duty Connector screws, which are provided with the column base. (Lag screws will not achieve the same load.)
  • For full loads, a minimum of 3" side cover shall be provided.
  • 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).

Ordering Information

  • To order with screws, specify CBSQ-SDS2
  • To order without screws, specify CBSQ

Load Tables

    These products are available with additional corrosion protection. Additional products on this page may also be available with this option, check with Simpson Strong-Tie for details.

    For stainless-steel fasteners, see Fastener Types and Sizes Specified for Simpson Strong-Tie Connectors.

CBSQ Column Bases Load Table
  1. Loads may not be increased for duration of load.
  2. For higher downloads, pack grout solid under 1" standoff plate before installation. Base download on column or concrete, according to the code.
  3. Concrete shall have a minimum compressive strength of f'c = 2,500 psi.
  4. To obtain LRFD values, multiply ASD seismic load values by 1.4 and wind load values by 1.67 (1.6 for 2012 IBC).
  5. In accordance with IBC, Section 1613.1, detached one- and two-family dwellings in Seismic Design Category (SDC) C may use "Wind and SDC A&B" allowable loads.
  6. Downloads shall be reduced where limited by capacity of the post.
  7. Designer is responsible for concrete design.
  8. Structural composite lumber columns have sides that show either the wide face or the edges of the lumber strands/veneers known as the narrow face. Values in the tables reflect installation into the wide face. See technical bulletin T-C-SCLCLM for load reductions resulting from narrow-face installations.
  9. Fasteners: SD and SDS screws are Simpson Strong-Tie® Strong-Drive® screws. For additional information, see Fastener Types and Sizes Specified for Simpson Strong-Tie Connectors.


Extra Information

Simpson Strong-Tie
15.00 LBS