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Simpson Strong-Tie CBSQ 4-in x 4-in G90 galvanized Wood to concrete (cast in place) Column base

Name: Simpson Strong-Tie CBSQ 4-in x 4-in G90 galvanized Wood to concrete (cast in place) Column base
Brand: Simpson Strong-Tie
SKU: 1002730396
Rating: 4.8 (18 reviews)

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4.8

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Common Measurement (T x W): 4-in x 4-in

4-in x 4-in

4-in x 6-in

6-in x 6-in

8-in x 8-in

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Shipping Details

Post and column bases secure the bottom of posts or columns to concrete and are perfect for decks or patio covers. Models are available for attaching to existing hardened concrete, wet concrete, as well as wood. The CBSQ series provides a connection between a post (or column) for decks, patio covers and other top-supported structures.

Uses Strong-Drive screws, which allow for fast installation, reduced reveal and high capacity
Provides a 1-in standoff between post and concrete that meets code requirements
Embeds in wet concrete at time of pour
The standoff base reduces the potential for decay at post and column ends
Shipped with base plate assembled
Nominal column size: 4x4; steel gauge: Base 12; strap 10
Galvanized (G90) for extra corrosion resistance
Install with 1/4-in x 2-in Strong-Drive SDS Heavy-Duty Connector screws (included)
Code compliance verified by ICC-ES Evaluation Report(s): ESR-3050, ESR-2523 (Index); State of Florida product approval(s): FL10860

General
Type	Column base	Finish	G90 galvanized
Material	Steel	Package Quantity	1
Nails Required	None	Manufacturer Color/Finish	Zinc Galvanized, G90
Materials Connected	Wood to concrete (cast in place)	Series Name	CBSQ

Dimensions
Common Measurement (T x W)	4-in x 4-in	Actual Width (Inches)	4
Actual Weight (lbs.)	4.5	Actual Depth (Inches)	3.5

Features
Gauge	12	Screws Included	Yes
Stainable/Paintable	No	Adjustable	No

Certifications
CA Residents: Prop 65 Warning(s)	No

Warranty
Warranty	None

Miscellaneous
UNSPSC	30102900

Check out the Best Selling Base & Cap Hardware on Lowes.com

Review

4.8 out of 5

18 Reviews

2 Star

1 Star

100% Recommend this product

Ratings may include incentivized customer reviews.

18 Customer Reviews

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Sometimes they don’t come with screws

Very sturdy anchors

ButteJune 16, 2026
Verified Purchaser

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Great

Good

MasonMarch 6, 2025
From CBSQ 6-in x 6-in G90 galvanized Wood to concrete (cast in place) Column base Verified Purchaser

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Sturdy and does its job.

Would Recommend

It was easy to install and fit the post perfectly.

AmandaMay 12, 2024
From CBSQ 6-in x 6-in G90 galvanized Wood to concrete (cast in place) Column base Verified PurchaserIncentivized

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		Name	Current Item Simpson Strong-TieCBSQ 4-in x 4-in G90 galvanized Wood to concrete (cast in place) Column base
		Ratings	18
		Type	Column base
		Materials Connected	Wood to concrete (cast in place)
		Material	Steel
Simpson Strong-TieCBSTQ 4-in x 4-in ZMAX Wood to concrete (cast in place) Standoff column base	Simpson Strong-TiePBS 4-in x 4-in ZMAX Wood to concrete (cast in place) Base	Simpson Strong-TieCBSQ 4-in x 4-in Hot-dipped galvanized Wood to concrete (cast in place) Column base	Simpson Strong-TieCBSQ 4-in x 6-in Hot-dipped galvanized Wood to concrete (cast in place) Column base	Simpson Strong-TieCBSQ 6-in x 6-in Hot-dipped galvanized Wood to concrete (cast in place) Column base	Simpson Strong-TieCB 4-in x 4-in Hot-dipped galvanized Wood to concrete (cast in place) Column base	Simpson Strong-TieMPBZ 4-in x 4-in ZMAX Wood to concrete (cast in place) Base	Simpson Strong-TieCBST 4-in x 4-in Hot-dipped galvanized Wood to concrete (cast in place) Standoff column base	Simpson Strong-TieCBSTQ 4-in x 4-in ZMAX Wood to concrete (cast in place) Standoff column base
21	16	10	10	10	5	5
Standoff column base	Base	Column base	Column base	Column base	Column base	Base	Standoff column base	Standoff column base
Wood to concrete (cast in place)	Wood to concrete (cast in place)	Wood to concrete (cast in place)	Wood to concrete (cast in place)	Wood to concrete (cast in place)	Wood to concrete (cast in place)	Wood to concrete (cast in place)	Wood to concrete (cast in place)	Wood to concrete (cast in place)
Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel