CBGT Column Base
On This Page
This product is only available in Canada
Product Details
The CBGT is designed to connect posts to concrete foundations for a wide range of lumber sizes. The bottom of the base plate sits flush with the concrete while its rebar posts are concealed inside the concrete. This cast-in-place (wet-set) or post-installed column base is ideal for columns that require high structural values and rugged performance.
Key Features
- Increased uplift resistance for wind or seismic loading
- Cast-in-place or post-installed
- Rebar feature requires smaller concrete edge distance
Material
- Strap and Base: 7 gauge or 3 gauge (depending on model)
Finish
- Simpson Strong-Tie gray paint, or hot-dip galvanized (custom order)
Installation
- Use all specified fasteners; see General Notes.
- 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).
- Contact engineered wood manufacturers for connections that are not installed through the wide face of the lumber.
- Minimum 3" side cover on concrete is required.
Ordering Information
- For CBGT model with rebar option, add “GT” to the model name, i.e., CBGT44. (Base plate comes 3 ga. for all CBGTs).
Related Literature
Product Information Table
| Model No. | Description |
|---|---|
| CBGT1010 | 10 X 10 COLUMN BASE |
| CBGT1212 | 12 X 12 COLUMN BASE |
| CBGT44 | 4 X 4 COLUMN BASE |
| CBGT46 | 4 X 6 COLUMN BASE |
| CBGT48 | 4 X 8 COLUMN BASE |
| CBGT5-4.5 | 5 X 4-1/2 COLUMN BASE |
| CBGT5-6 | 5 X 6 COLUMN BASE |
| CBGT66 | 6 X 6 COLUMN BASE |
| CBGT66R | 6 X 6 ROUGH COLUMN BASE |
| CBGT6-7 | COLUMN BASE |
| CBGT68 | 6 X 8 COLUMN BASE |
| CBGT7 1/8-4 | COLUMN BASE |
| CBGT7 1/8-6 | COLUMN BASE |
| CBGT7 1/8-7 | COLUMN BASE |
| CBGT7-6 | 7 X 6 COLUMN BASE |
| CBGT7-7.5 | 7 X 7-1/2 COLUMN BASE |
| CBGT7-9 | 7 X 9 COLUMN BASE |
| CBGT86 | 6 X 8 COLUMN BASE |
| CBGT88 | 8 X 8 COLUMN BASE |
| CBGT88R | 8 X 8 ROUGH COLUMN BASE |
| CBGT9-9 | 9 X 9 COLUMN BASE |
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.
- Factored uplift resistances have been increased 15% for earthquake or wind loading, with no further increase allowed; reduce where other loads govern.
- PSL is parallel strand lumber.
- Factored resistances shown assume dry service condition (KSF = 1.00). Multiply table values by 0.67 for uplift under wet service conditions.
- Factored uplift resistance for CBGT option is 4350 lb. (19.35 kN).
- LCB products must be installed with bolts to achieve table values.
- Designer is responsible for concrete design.
- Structural composite lumber columns have sides that show either the wide face or the edges of the lumber strands/veneers. Values in the tables reflect installation into the wide face.
- f'c shall be 20 MPa minimum.
- Nails: 16d = 0.162" dia. x 3 1â2" long. See Fastener Types and Sizes Specified for Simpson Strong-Tie Connectors.
Code Reports & Compliance
Drawings
| DWG | DXF | RFA | IFC | SAT | |||
|---|---|---|---|---|---|---|---|
