ABW Adjustable Post Base with Wind Uplift

Product Details

The ABW is designed to attach wooden posts to existing concrete in medium-capacity applications. The built-in 1" standoff of this adjustable post base helps to prevent rot at the end of the post. The ABW has a slotted anchor hole in the base for adjustability and attaches to the post with nails or Strong-Drive® SD Connector screws. This versatile post base makes a cost-effective option for securing a post to the foundation.

Key Features

The slot in the base enables flexibility around the anchor bolt, making precise post placement easier
1" stand-off design meets code requirements for structural posts installed in basements or exposed to weather or water splash
Increased uplift loads for earthquake or wind loading

Material

See table

Finish

ZMAX®; see Corrosion Information

Installation

Use all specified fasteners; see General Notes.
See our Anchoring, Fastening and Restoration Systems for Concrete and Masonry catalog for retrofit anchor options.
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).
Place the base, cut washer(s) or load transfer plate(s) and nut(s) on the anchor bolt(s). Make any necessary adjustments to post placement and tighten the nut securely on the anchor bolt.
Place the standoff base and then the post in the ABW and fasten on three vertical sides, using nails or Strong-Drive SD Connector screws.
Bend up the fourth side and fasten using the correct fasteners.

Catalog Pages

C-C-2019 (Wood Construction Connectors), pages 68–69

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Engineering Letter

Product Information Table

Fastener Production Information and Stuff & Things
Model No.	Nominal Post Size	Ga.	W (in.)	H (in.)	L (in.)	Coating/Material	Packaging Qty.
ABW44RZ	Rough 4x4	16	4	1 15/16	4 1/16	ZMAX®	1
ABW44Z	4x4	16	3 9/16	2 1/4	3 9/16	ZMAX®	1
ABW46RZ	Rough 4x6	Base 12; strap 16	4	2 13/16	6	ZMAX®	1
ABW46Z	4x6	Base 12; strap 16	3 9/16	3	5 9/16	ZMAX®	1
ABW66RZ	Rough 6x6	Base 12; strap 14	6	2 13/16	6	ZMAX®	1
ABW66Z	6x6	Base 12; strap 14	5 1/2	3	5 9/16	ZMAX®	1
ABW7-7Z	7 1/8 x 7 1/8	Base 12; strap 14	7 5/16	3	7 5/16	ZMAX®	1

Load Tables

Allowable Loads — Post Installation

These products are available with additional corrosion protection.

Many of these products are approved for installation with Strong-Drive® SD Connector screws.

Model No.	Nominal Post Size	Material (ga.)		Dimensions (in.)			Fasteners		Allowable Loads (DF/SP)
		Material (ga.)		Dimensions (in.)			Fasteners		Allowable Loads (DF/SP)
		Base	Strap	W	L	H	Anchor Dia. (in.)	Nails (in.)	Uplift	Down (100)
											ABW44Z	4x4	16	16	3 9/16	3 9/16	2 1/4	1/2	(8) 0.148 x 3	1,005	7,180
											ABW44RZ	Rough 4x4	16	16	4	4 1/16	1 15/16	1/2	(8) 0.148 x 3	835	7,180
ABW46Z	4x6	12	16	3 9/16	5 9/16	3	1/2	(10) 0.148 x 3	845	4,590
ABW46RZ	Rough 4x6	12	16	4	6	2 13/16	1/2	(10) 0.148 x 3	780	4,590
ABW66Z	6x6	12	14	5 1/2	5 9/16	3	1/2	(12) 0.148 x 3	1,190	12,935
ABW66RZ	Rough 6x6	12	14	6	6	2 13/16	1/2	(12) 0.148 x 3	1,190	12,935
ABW7-7Z	7 1/8 x 7 1/8	12	14	7 5/16	7 5/16	3	1/2	(12) 0.148 x 3	840	14,530

Uplift loads have been increased for earthquake or wind loading with no further increase allowed. Reduce where other loads govern.
Downloads may not be increased for short-term loading.
Specifier is to design concrete and anchorage for uplift capacity.
For higher downloads, pack grout solid under 1" standoff plate before installation. Base download on column or concrete, according to the code.
Structural composite lumber columns have sides that show either the wide face or the edges of the lumber strands/veneers. For SCL columns, the fasteners for these products should always be installed in the wide face.
Downloads shall be reduced where limited by capacity of the post.
Fasteners: Nail dimensions in the table are listed diameter by length. For additional information, see Fastener Types and Sizes Specified for Simpson Strong-Tie Connectors.

Load Values with Strong-Drive® SD Connector Screws