Heavy-Duty Post Base Bracket Kit (4-Pack) for 4x4 / 6x6 Wood Posts

Build a solid, long-lasting foundation for outdoor structures with these powder-coated steel post base anchors. Designed to bolt down securely to concrete, wood decking or other sound substrates, each post base helps reduce wobble and side-to-side movement—ideal for pergolas, fencing, deck posts, gazebos, railings and porch supports. Made from 2mm carbon steel with a durable black powder coat, they’re designed for durability rust and harsh weather for dependable outdoor performance.

Why you’ll like it

• Reinforced 2mm steel: Heavy-duty carbon steel for strong load support and reliable stability.
• Weatherproof powder coating: Helps protect against corrosion from rain, ground moisture and seasonal conditions.
• Stability-focused design: Bracketed sides help minimise post movement for a more secure structure in wind.
• Fast, clean installation: Pre-drilled base plates for straightforward bolt-down fitting—no welding required.
• Versatile outdoor use: Appropriate for pergola posts, garden fence and gate posts, deck and patio structures, balustrades and handrails.

Specs

• Pack: 4 x post base brackets
• Post size: 4x4 in (approx. 101x101mm) / 6x6 in (approx. 150x150mm)
• Material: 2mm powder-coated carbon steel
• Base plate: approx. 101x101mm / 152x152mm (by model)
• Fitting: bolt-down; fixings may be required depending on your installation surface

For best results: ensure the base is level and use appropriate anchors/bolts for concrete or wood decking.