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CCOB Column Cap Only, Back-to-Back

CCOB

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The CCOB is designed to provide a strong connection for the crossing of two beams. The design features two column caps without legs (CCOs) welded together back to back to create a cross-beam connector. This back-to-back column cap provides a high-capacity beam-to-beam connection.

Key Features

  • Uplift loads increased for earthquake or wind loading
  • Bolt spacing that meets NDS code requirements to ensure optimal performance
  • Diamond holes to provide temporary fastening

Material

  • CCOB3.62, CCOB4, CCOB44, CCOB5 1/4, CCOB5.50, CCOB6 — 7 gauge; all others — 3 gauge

Finish

  • No coating

Installation

  • Use all specified fasteners; see General Notes
  • Weld by designer
  • Bolt holes shall be a minimum of 1/32" to a maximum of 1/16" larger than the bolt diameter (per 2018 NDS, section 12.1.3.2); bolt holes should be drilled from one side all the way through the beam to maintain hole tolerances
  • Contact engineered wood manufacturers for connections that are not through the wide face

Options

  • For special, custom or rough-cut lumber sizes, provide dimensions. An optional W2 dimension may be specified. (The W2 dimension on straps rotated 90° is limited by the W1 dimension.)

Related Literature

Load Table

Model No. Top Beam Width Bottom Beam Width Ga. Dimensions Bolts Allowable Loads
W1 W2 L H Size Quantity Uplift (160) Uplift Download (100) Download
CCOB44 3.5 3.5 7 3.625 3.625 11 6.5 0.625 2 3,555 24,063
CCOB3.62 3.5 3.5 7 3.625 3.625 11 6.5 0.625 4 7,675 24,063
CCOB4 3.5 3.5 7 3.625 3.625 11 4.0 0.625 4 7,675 24,063
CCOB5 1/4 5.125 5.125 3 5.25 5.25 11 8.0 0.75 4 8,750 35,234
CCOB5.5 5.5 5.5 7 5.5 5.5 11 6.5 0.625 4 7,990 37,813
CCOB6 5.5 5.5 7 5.5 5.5 11 6.5 0.625 4 7,990 37,813
CCOB7 6.75 6.75 3 6.875 6.875 11 8.0 0.75 4 8,150 48,263
CCLOB7.12 7 7 3 7.125 7.125 11 8.0 0.75 4 8,165 57,750
CCOB8 7.5 7.5 3 7.5 7.5 11 8.0 0.75 4 8,190 51,563
CCOB9 8.75 8.75 3 8.875 8.875 11 8.0 0.75 4 8,240 62,563
  1. Uplift loads have been increased for earthquake or wind loading with no further increase allowed. Reduce where other loads govern.
  2. Uplift loads do not apply to spliced conditions. Spliced conditions must be detailed by the designer to transfer tension loads between spliced members by means other than the post cap.
  3. Beam depth must be a minimum of 7".
  4. For 5 1/4" engineered lumber, use 5 1/2" models.
  5. Where top and bottom beam widths are different, use the lower allowable load.

Code Reports & Compliance

Drawings

PDF DWG DXF RFA IFC SAT