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ECCQ End Column Cap, Quick-Install

ECCQ

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The ECCQ is designed to provide strong column-beam connections in end-of-beam applications in wood construction. The seat of the column cap provides an additional surface area of bearing that extends beyond the side of the column. The extended bearing surface helps distribute the load from the beam and provide support for the connection. The ECCQ uses Strong-Drive® SDS Heavy-Duty Connector screws for fast installation and to attach to a greater net section area of the column than a bolt attachment normally entails.

Key Features

  • The SDS screws provide a lower profile than standard through bolts
  • Certified welds for confidence in strength and loading
  • Uplift loads have been increased for earthquake or wind loading
  • Diamond holes for temporary fastening

Material

  • ECCQ3, ECCQ4, ECCQ4.62, ECCQ6 — 7 gauge; all others — 3 gauge

Finish

  • Simpson Strong-Tie gray paint; available in HDG and stainless steel. See Corrosion Information.

Installation

  • Fasten with 1/4" x 2 1/2" Strong-Drive SDS Heavy-Duty Connector screws, which are provided with the column cap. (Lag screws will not achieve the same load.) Use stainless-steel Strong-Drive screws with stainless-steel connectors.
  • For rough-cut lumber sizes, provide dimensions. An optional W2 dimension may be specified with any column size given. (Note that the W2 dimension on straps rotated 90° is limited by the W1 dimension.)

Options

  • Straps may be rotated 90° where W1 ≥ W2 and for ECCQ5-6.
  • Other custom column caps are available. Contact Simpson Strong-Tie.

Related Literature

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.

Model No. Beam Width (in.) Dimensions (in.) No. of 1/4" x 2 1/2" SDS Screws Allowable Loads (DF/SP)
W1 W2 L H Beam Post Uplift Down
(160) (100)
  ECCQ3-4SDS2.5 3 1/8 3 1/4 3 5/8 8 1/2 7 14 14 3,465 6,125
  ECCQ3-6SDS2.5 3 1/8 3 1/4 5 1/2 8 1/2 7 14 14 3,465 10,740
  ECCQ44SDS2.5 3 1/2 3 5/8 3 5/8 8 1/2 7 14 14 3,785 7,655
  ECCQ46SDS2.5 3 1/2 3 5/8 5 1/2 8 1/2 7 14 14 3,785 12,030
  ECCQ48SDS2.5 3 1/2 3 5/8 7 1/2 8 1/2 7 14 14 3,785 16,405
  ECCQ4.62-3.62SDS 4 1/2 4 5/8 3 5/8 8 1/2 7 14 14 3,785 9,845
  ECCQ4.62-4.62SDS 4 1/2 4 5/8 4 5/8 8 1/2 7 14 14 3,785 12,655
  ECCQ4.62-5.50SDS 4 1/2 4 5/8 5 1/2 8 1/2 7 14 14 3,785 15,470
  ECCQ5-4SDS2.5 5 1/8 5 1/4 3 5/8 8 1/2 7 14 14 4,040 11,210
  ECCQ5-6SDS2.5 5 1/8 5 1/4 5 1/2 8 1/2 7 14 14 5,355 17,615
  ECCQ5-8SDS2.5 5 1/8 5 1/4 7 1/2 8 1/2 7 14 14 5,355 24,025
  ECCQ64SDS2.5 5 1/4, 5 1/2 5 1/2 3 5/8 8 1/2 7 14 14 3,785 12,030
  ECCQ66SDS2.5 5 1/4, 5 1/2 5 1/2 5 1/2 8 1/2 7 14 14 3,785 18,905
  ECCQ68SDS2.5 5 1/4, 5 1/2 5 1/2 7 1/2 8 1/2 7 14 14 3,785 25,780
  ECCQ6-7.13SDS2.5 5 1/4, 5 1/2 5 1/2 7 1/8 8 1/2 7 14 14 3,785 24,490
  ECCQ74SDS2.5 6 3/4 6 7/8 3 5/8 8 1/2 7 14 14 4,040 15,355
  ECCQ76SDS2.5 6 3/4 6 7/8 5 1/2 8 1/2 7 14 14 5,355 24,130
  ECCQ77SDS2.5 6 3/4 6 7/8 6 7/8 8 1/2 7 14 14 5,355 29,615
  ECCQ78SDS2.5 6 3/4 6 7/8 7 1/2 8 1/2 7 14 14 5,355 32,905
  ECCQ7.1-4SDS2.5 7 7 1/8 3 5/8 8 1/2 7 14 14 4,040 18,375
  ECCQ7.1-6SDS2.5 7 7 1/8 5 1/2 8 1/2 7 14 14 5,355 28,875
  ECCQ7.1-7.1SDS25 7 7 1/8 7 1/8 8 1/2 7 14 14 5,355 36,750
  ECCQ7.1-8SDS2.5 7 7 1/8 7 1/2 8 1/2 7 14 14 5,355 39,375
ECCQ84SDS2.5 7 1/2 7 1/2 3 5/8 8 1/2 7 14 14 5,355 16,405
  ECCQ86SDS2.5 7 1/2 7 1/2 5 1/2 8 1/2 7 14 14 5,355 25,780
  ECCQ88SDS2.5 7 1/2 7 1/2 7 1/2 8 1/2 7 14 14 5,355 35,155
ECCQ94SDS2.5 8 3/4 8 7/8 3 5/8 8 1/2 7 14 14 5,355 19,905
  ECCQ96SDS2.5 8 3/4 8 7/8 5 1/2 8 1/2 7 14 14 5,355 31,280
  ECCQ98SDS2.5 8 3/4 8 7/ 7 1/2 8 1/2 7 14 14 5,355 42,655
  ECCQ106SDS2.5 9 1/4 9 1/2 5 1/2 8 1/2 7 14 14 5,355 32,655
  1. Uplift loads have been increased for earthquake or wind loading with no further increase allowed. Reduce where other loads govern.
  2. Downloads shall be reduced where limited by capacity of the post.
  3. 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.
  4. Spliced conditions must be detailed by the designer to transfer tension loads between spliced members by means other than the column cap.
  5. Column sides are assumed to be aligned in the same vertical plane as the beam sides. ECCQ4.62 models assume a minimum 3 1/2"-wide post.
  6. 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.
  7. Beam depth must be a minimum of 7".
  8. For 5 1/4" engineered lumber, use 5 1/2" models.

Code Reports & Compliance

Drawings

PDF DWG DXF RFA IFC SAT