Hardware
Brackets
Simpson Strong-Tie
$1-$8 each

Mending Plates for Splicing and Flat Joint Reinforcement

Mending plates are flat rectangular steel plates with pre-punched holes used to splice wood members end-to-end or reinforce flat joints and repairs. By bridging across a butt joint or crack, they restore tensile strength to the connection.

Key Features

  • Flat profile for surface-mounted splicing
  • Pre-punched holes for easy nailing
  • Galvanized for outdoor durability
  • Multiple sizes available
  • Bridges cracks and butt joints

Specifications

Material: Galvanized steel (16-20 gauge) | Sizes: 2x4in to 6x12in | Hole pattern: Staggered | Fasteners: 8d to 10d nails or #9 screws | Finish: G90 galvanized

Best For

Splicing framing members
Repairing cracked wood
Reinforcing butt joints
Furniture and fixture repairs

Compatible Materials

Dimensional lumber
Plywood
Pressure-treated lumber
Hardwoods
Repaired structural members

Pros & Cons

Pros

  • ✓ Simple surface-mount installation
  • ✓ Bridges and reinforces weak joints
  • ✓ Inexpensive per plate
  • ✓ Versatile for repairs and new work

Cons

  • ✗ Limited to tensile/shear loads in plate plane
  • ✗ Visible on wood surface
  • ✗ Not for moment connections

Installation Tips

Center plate over joint with equal overhang on both sides. Fasten through all holes alternating sides. Use plates on both faces for maximum strength.

Frequently Asked Questions