Free Shipping

on orders over $99

Worry-free Returns

365 day return policy


The Outdoor Accents Adjustable Post Base by Simpson Strong-Tie ensures your posts have a secure connection to concrete. A one-inch standoff offers moisture protection for wood posts, moving them up off the ground to help prevent rot and water damage. Standoff post bases keep your posts strong and weather-protected.

With a powder coating over hot-dipped galvanized steel, Simpson post bases deliver the best in corrosion resistance for a solid foundation on your outdoor structures.

The Outdoor Accents Adjustable Post Base comes in four size options, based on the nominal lumber size of your post:

  • 4x4
  • 6x6
  • 8x8
  • 10x10

Actual dimensions of the post bases for each size are listed in the table below.

To complete installation of the Avant Side Plates to the Simpson Strong-Tie Base you'll need additional hardware. The Structural Wood Screws and Hex Head Washers will secure the plates and give the finished look of fortified pergola.


DecksDirect # 6719
simpson strong tie
Documentation: Technical and Installation Notes
MaterialHot-dipped galvanized steel with black powder coat
Steel Thickness12 gauge
Lumber Sizes

4 in x 4 in, 6 in x 6 in, 8 in x 8 in, and 10 in x 10 in

Lumber TypeNominal
Dimensions4 in x 4 in: 3 in x 3-9/16 in x 7 in
6 in x 6 in: 5 in x 5-3/4 in x 7-1/2 in
8 in x 8 in: 7 in x 7-1/2 in x 10-9/16 in
10 in x 10 in: 9 in x 9-1/2 in x 11 in
Hardware Needed(4) 3-1/2 in Wood Screws, (4) Hex-Head Washers
Pack SizeEach
WarrantyView Simpson Warranty Information
Outdoor Accents Structural Wood Screw by Simpson Strong-Tie (3-1/2 in)
Starting at: $15.99
Outdoor Accents Hex Head Washer by Simpson Strong-Tie
Starting at: $19.99
Outdoor Accents Mission Collection T Strap by Simpson Strong-Tie - 6 in x 6 in
Starting at: $20.99
Recessed Low Voltage LED Stair Light with Round Cover by Dekor
Starting at: $17.19 $24.55
General Purpose Structural Post with Angle Adjustment
Starting at: $44.99
Post Anchor by Titan - 6x6 - with Hardware - Package Contents
Starting at: $22.99
The LINX TETRAFIT connector for the LINX Pergola system allows you to connect multiple sections together.
Starting at: $127.99
The LINX UNIFIT pergola post base kit features a pre-welded base plate with screw openings for a quick, secure post attachment.
Starting at: $62.99
A stunning option to attach and anchor your 10 in x 10 in pergola posts, choose the look of the Avant Post Base from Simpson Strong-Tie.
Starting at: $36.99

Reviews & Questions