- 28% off
Simpson Anchors
Simpson Strong-Tie ABA44Z (3-3/8") 16Ga Adjustable Post Base for 4x4 Lumber - ZMAX Finish
$10.05$13.95Unit price /UnavailableBackorder - Ships In 3-7 Days - 22% off
Simpson Anchors
Simpson Strong-Tie ABU44Z (4" x 4") ABU Adjustable Post Base with Uplift - ZMAX Finish
$26.63$34.16Unit price /UnavailableBackorder - Ships In 3-7 Days Simpson Anchors
Simpson Strong-Tie FPBB44 None E-Z Base Black Powder-Coated Post Base for 4x4
$25.00Unit price /UnavailableVery low stock (2 units)Simpson Anchors
Simpson Strong-Tie CPS10 Composite Plastic Standoff for 10x10
$31.32Unit price /UnavailableBackorder - Ships In 3-7 DaysSimpson Anchors
Simpson Strong-Tie PPBF44 (4x4) 12 Gauge Adjustable Porch Post Base
$86.66Unit price /UnavailableBackorder - Ships In 3-7 DaysSimpson Anchors
Simpson Strong-Tie ABA66RZ (6") 14Ga Adjustable Standoff Post Base for 6x6 Rough - ZMAX Finish
$27.79Unit price /UnavailableLow stock (10 units)Simpson Anchors
$17.28Unit price /UnavailableVery low stock (4 units)Simpson Anchors
Simpson Strong-Tie RPBZ Retrofit Post Base ZMAX Finish
$7.21Unit price /UnavailableIn stock (24 units)Simpson Anchors
Simpson Strong-Tie CPT44SS (4" x 4") Stainless-Steel Concealed Post Base (1 Piece)
$197.57Unit price /UnavailableBackorder - Ships In 3-7 Days- 35% off
Simpson Anchors
Simpson Strong-Tie FPBS44 None E-Z Spike Black Powder-Coated Post-Base Spike for 4x4
$34.57$53.39Unit price /UnavailableVery low stock (4 units) Simpson Anchors
Simpson Strong-Tie PPB44-4Z (4X4) 12 Gauge Porch Post Base - ZMAX Finish
$63.38Unit price /UnavailableBackorder - Ships In 3-7 DaysSimpson Anchors
Simpson Strong-Tie EPB44HDG (4" x 4") Hot-Dip Galvanized Elevated Post Base
$25.27Unit price /UnavailableBackorder - Ships In 3-7 Days- 30% off
Simpson Anchors
Simpson Strong-Tie EPB44 Elevated Post Base for 4x4 Posts
$18.93$27.09Unit price /UnavailableIn stock (50 units) Simpson Anchors
Simpson Strong-Tie CPT44Z (4" x 4") ZMAX Galvanized Concealed Post Base for 4x4 Posts
$39.85Unit price /UnavailableBackorder - Ships In 3-7 DaysSimpson Anchors
Simpson Strong-Tie ABU88HDG (8" x 8") ABU HDG Adjustable Post Base for Rough Lumber
$136.38Unit price /UnavailableBackorder - Ships In 3-7 Days
Simpson Strong-Tie Decorative Outdoor Accents Post Bases

Simpson Strong-Tie Post Bases
Simpson Cast-In Place Post Bases: Permanent bases installed in concrete formwork, including adjustable, elevated, moment, porch, and standoff options for decks, porches, and outdoor structures
Simpson Decorative Post Bases: Powder-coated and ornamental bases that elevate posts above moisture while enhancing aesthetic appeal for patios, pergolas, and garden structures
Simpson Fence Post Bases: Specialized bases for 4x4 fence posts, including reinforcement plates, retrofit bases, and ground-driven spikes for easy installation and post repair
Simpson Retrofit Post Bases: Bases designed to attach posts to existing concrete surfaces, including adjustable, wraparound, and concealed post tie options for new and existing posts
Frequently Asked Questions
How do I install a cast-in-place post base?
How do I install a cast-in-place post base?
For cast-in-place bases, position the base in the concrete formwork before pouring the concrete. Ensure the base is level and properly aligned with the planned post location.
What's the difference between cast-in-place and retrofit base brackets?
What's the difference between cast-in-place and retrofit base brackets?
Cast-in-place bases like the MPBZ and PBS are embedded into wet concrete forms before the pour cures. Retrofit bases like the ABA, ABU, and RPBZ are installed after the concrete has already set and hardened. Cast-in-place typically provides stronger connections, while retrofit offers more flexibility for existing slabs.
What is the difference between adjustable and standoff post bases?
What is the difference between adjustable and standoff post bases?
Adjustable post bases allow for height adjustments during installation, accommodating variations in post length. Standoff post bases elevate the post above the concrete to prevent moisture contact.
Are decorative post bases available?
Are decorative post bases available?
Yes, Simpson Strong-Tie offers decorative post bases with designs and finishes, enhancing the aesthetic appeal of outdoor structures.
What size posts do Simpson post bases support?
What size posts do Simpson post bases support?
Post bases come in a variety of sizes, commonly 4x4, 6x6, and larger. Always check the manufacturer's specifications to match the base to your post dimensions.