GRID 30 Double Pergola Kit for 4x4 Wood Posts

$1,856 USD


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GRID 30 Double Pergola Kit for 4x4 Wood Posts

Create and build to your size and space with the GRID 30 Double A-frame Pergola Kit! It adds onto the single pergola kit with two QUAD 30 and a PEAK QUAD 30 that allows you to extend the size of your pergola structure and accommodate a larger space.

The GRID 30 Collection was designed and developed to allow you to build a peaked roof pergola. For any customizations outside the intended and indicated use of the pergola as shown, we advise consulting with an engineer as well as our ’Structures’ page. Always check your local building codes, HOA, and municipal requirements in advance of building as they vary by city/state and region.  

Toja Tip: 
See sizing chart for reference of wood.  We advise consulting with your local building codes. 
• Ensure lumber is fully inserted into the bracket cavity, resting on metal tabs for proper installation.

Peaked Roof Calculator for 4x4 Lumber

Take advantage of this lumber calculator to help guide you with your peaked roof pergola build from the GRID 30 Collection. Just enter the length/span of lumber (A) to determine the length/span for lumber required for peaked roof (B). Enter the length of lumber (C) to determine the total overall height (D) of your build.

What is your starting length/span of lumber? inch ( ft.)

The Length/Span of lumber will be inch ( ft.)

What is your length/height of lumber? inch ( ft.)

Overall pergola height will be inch ( ft.)


  • 2x TRIO 30 Left
  • 2x TRIO 30 Right
  • 2x PEAK TRIO 30
  • 2x QUAD 30
  • 1x PEAK QUAD 30
  • 6x SOLO
  • 1-1/2” Pan Rob/Phil combo drive 304 S.S Wood screws with Black plastic head caps


  • Wood
    Shipping wood is costly. Most of the population has access to stores that sell wood locally where they live. Buying your lumber allows you the freedom to select the type of wood you want to use for your build and budget. There are also regional limitations for what kind of lumber is ideal for your build; different species of lumber would be used in tropical climate vs. a cold one.
  • Anchoring Hardware
    Due to different building materials and requirements based on location, we advise on checking building codes and talking to your local hardware store for the best securing hardware for your specific surface.




We recommend taking a bracket with you when you purchase your wood to test fit.


Our 4x4 brackets accommodate dressed lumber, commonly called 4x4’s at local building supplies. The actual measure is 3.5x3.5”.


  • Each bracket only requires 2 screws per each side/set of eight holes.
  • Insert screws in holes closest to the wood.
  • Hardware to secure to wood is included.
  • Additional screws are available for purchase