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Four black powder-coated carbon steel post bases with square tubes and wide mounting plates, shown as a set of four

VEVOR

VEVOR 6x6 Post Base 4 Pcs 5.6x5.6 in Inner Black

SKU CH-A6SZ-YVGVR

Four carbon-steel post bases with 5.6-inch inner size secure 5.5-inch posts using powder-coated brackets and included fasteners

  • TypeOther Appliances
  • Secure support with fully enclosed design and 5.6 in inner fit
  • Carbon steel construction with 0.08 in wall and powder-coated finish
  • Includes 24 self-tapping screws, 24 expansion bolts, 24 washers, 32 wood screws
  • Ready for 5.5 in posts with 7.44 x 7.05 in base cross-section
  • Four-piece kit weighs 16.98 lbs and ships with 8-13 mm wrench

Secure Post Anchors for 5.5 Inch Timber

This kit contains four carbon steel post bases designed for 5.5 x 5.5 inch timber posts. Each unit has an internal tube size of 5.6 x 5.6 inch and an external dimension of 5.75 x 5.75 inch. The fully enclosed design delivers rigid support for pavilions, decking and railing structures without wobble.

Powder Coated Carbon Steel Resists Corrosion

The brackets are fabricated from carbon steel with a 0.08 inch wall thickness and a black powder coated finish. This surface treatment protects against rust and weathering for a long service life in outdoor environments. The base cross section measures 7.44 x 7.05 inch to spread loads across the footing.

Pre Drilled Holes Accept Supplied Fasteners

Installation uses the included M8 self tapping screws, expansion bolts, wood screws and washers. A double open end wrench spanning 12 to 13 mm is provided for tightening. The package weighs 16.98 lbs and includes all hardware needed to secure four posts to concrete or timber substrates.

Highlights

  • Secure support with fully enclosed design and 5.6 in inner fit
  • Carbon steel construction with 0.08 in wall and powder-coated finish
  • Includes 24 self-tapping screws, 24 expansion bolts, 24 washers, 32 wood screws
  • Ready for 5.5 in posts with 7.44 x 7.05 in base cross-section
  • Four-piece kit weighs 16.98 lbs and ships with 8-13 mm wrench

Specifications

TypeOther Appliances

Questions about this item

How do I install the 5.6 x 5.6 inch post base on a concrete slab using the supplied 12 x 60 expansion bolts?

Drill 12 mm holes 60 mm deep into the concrete, insert the expansion bolts through the 7.44 x 7.05 inch base plate, then tighten with the 8-13 mm wrench. The step often missed is torquing all 24 bolts evenly so the 2 mm wall tube sits plumb before adding wood screws.

What maintenance will the powder-coated carbon steel brackets need after a few seasons outdoors?

Inspect the black coating annually for chips; touch up any bare 2 mm steel with rust-inhibiting paint to stop corrosion. Re-torque the 24 M8 self-tapping screws and 32 M5 wood screws if the 5.5 x 5.5 inch post shrinks or shifts.

At what load does the 142 x 142 mm inner tube start to deflect under a permanent deck load?

The 2 mm wall thickness and 16.98 lb unit weight give rigid support for standard 5.5 inch posts, but sustained point loads beyond typical residential deck ratings will show first as slight base-plate flex at the 189 x 179 mm footprint.

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