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Twenty powder-coated steel post bases with square 3.6-inch openings and pre-drilled holes

VEVOR

VEVOR TTLZ-4in-20 Post Base 20pcs 3.6in Inner 1.6mm Steel

SKU CH-TV0Z-N47PZ MPN TTLZ-4in-20

Pack of 20 powder-coated carbon steel post bases with 3.6 inch inner dimensions for standard 4x4 wood posts, 1.6mm thick, includes 90 expansion sleeves and 260 self-tapping screws

  • TypeOther Appliances
  • Width7.87
  • 20-piece pack covers multiple posts in one purchase
  • 6 in inner dimension fits standard 3.5 in lumber securely
  • 6 mm carbon steel resists bending under load
  • Powder-coated finish protects against rust and corrosion
  • 90 expansion sleeves and 260 screws included for installation

20-Pack Post Bases for 4x4 Timber

This 20-piece set of powder-coated carbon-steel brackets is built for deck, porch and handrail projects that use standard 3.5-inch square posts. Each base measures 153 by 153 by 62 millimetres and weighs 18.1 lbs total, giving installers a consistent hardware kit for multi-post jobs.

3.6-Inch Inner Pocket Fits 3.5-Inch Posts

The critical dimension is the 3.6-inch square interior, which accommodates the actual 3.5-inch nominal lumber without wobble. Walls are 1.6 millimetres thick and the package includes 90 yellow expansion sleeves plus 260 self-tapping screws for concrete or wood anchoring.

Twenty Bases Cover Long Runs, Not Heavy Point Loads

The kit comfortably handles straight fence lines, deck perimeters and railing sequences where each post shares the load. It runs out when a design demands fewer, heavier-duty anchors rated for concentrated beam reactions or uplift forces beyond the supplied screw pattern.

Highlights

  • 20-piece pack covers multiple posts in one purchase
  • 6 in inner dimension fits standard 3.5 in lumber securely
  • 6 mm carbon steel resists bending under load
  • Powder-coated finish protects against rust and corrosion
  • 90 expansion sleeves and 260 screws included for installation

Specifications

TypeOther Appliances
Width7.87

Questions about this item

How does the 3.6 inch inner dimension work with a standard 4x4 post?

The bracket is sized for nominal 4x4 lumber which actually measures 3.5 x 3.5 inches, so the 3.6 inch pocket gives a close fit with minimal gap.

What mounting hardware is included for concrete and wood?

The pack supplies 90 yellow expansion sleeves for concrete anchors and 260 self-tapping screws for fastening into the wood post.

Will the 6 x 6 inch base with 2.4 inch height clear my deck joists?

Each base measures 6 x 6 inches in plan and stands 2.4 inches tall, so check your joist spacing and beam height against those dimensions.

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