91 x 91mm (3.5" x 3.5") Bolt Down Square Post Support Hot Dip Galvanised

91 x 91mm (3.5" x 3.5") Bolt Down Square Post Support for 91mm Timber Posts

91 x 91mm (3.5" x 3.5") bolt down square post support is designed for securing 91mm timber posts to concrete surfaces for pergolas, fencing, sheds, decking, and other outdoor timber structures.

The square base helps position the post accurately, while the bolt down design provides a strong and practical fixing method for concrete slabs, patios, and foundations. By keeping the timber raised above ground level, it helps reduce direct contact with moisture and lowers the risk of rot.

Manufactured from 2mm hot-dip galvanised steel, this post support offers excellent corrosion resistance and long-term durability for outdoor use.

Key Features

• Size: 91 x 91mm (3.5" x 3.5")
• Suitable for 91mm timber posts
• Hot-dip galvanised steel construction
• 2mm steel thickness
• 11mm fixing holes
• Bolt down design for concrete installation

Common Applications

• Pergolas and garden structures
• Fence posts and garden fencing
• Sheds, decking, and outdoor timber frames
• Post fixing on concrete slabs and bases

See more in bolt down square post supports or browse post supports.