4"x4" Pergola Bracket Kit 4-Pack

The 4x4 pergola bracket kit gives you four 3-way corner brackets that lock the posts, beams, and rafters of a backyard pergola or gazebo into a rigid frame.

Each bracket joins three structural members at a single corner: the vertical 4x4 post and two horizontal beams that meet at right angles. The kit ships in a 4-pack, enough for the four corners of a standard rectangular pergola, gazebo, or DIY outdoor structure.

Why this 4x4 pergola bracket kit works

• 3-way corner connection: ties post, side beam, and end beam together at one rigid joint.
• 4x4 dimensional sizing: fits standard 4 by 4 lumber posts used in most backyard pergolas.
• Heavy-duty steel: resists racking and movement once the corner is fastened.
• 4 brackets per kit: covers all four corners of a rectangular pergola, gazebo, or patio cover.
• DIY-ready: bolt the brackets to dimensional lumber with standard hardware to square up the frame.

Specs and details

• Lumber size: nominal 4 by 4 inches
• Brackets per kit: 4
• Bracket type: 3-way corner
• Use case: pergola, gazebo, patio cover, outdoor DIY structures
• Construction: heavy-duty steel

Frequently asked questions

What does a 3-way corner pergola bracket connect?
It joins three pieces at one corner: the vertical 4x4 post that comes up from the ground, the side beam that runs along the length of the pergola, and the end beam that runs across the width.

Will this bracket fit nominal 4x4 lumber?
Yes. The bracket is sized for standard nominal 4 by 4 lumber, which actually measures 3.5 by 3.5 inches. Confirm your beams match before fastening.

How many brackets do I need for a four-corner pergola?
Four brackets, one for each corner. The kit ships with 4 brackets, which is enough for a standard rectangular pergola or gazebo with one post at each corner.

What hardware do I need to install the brackets?
Use lag bolts or carriage bolts sized to the bracket holes. Drive them through the bracket into both the post and each connecting beam, then snug them with a wrench.

Pair this with our 10-inch flexible ventilation duct hose for a complete setup.