Planning to build a pergola over an existing deck this spring. The pergola's support beam will be attached to the facade, and from the support beam, approximately 8 outbound joists will extend, which will be recessed.

I want the joist attachment to be as hidden as possible and am considering the options.

1. Is it even possible to screw all the outbound joists (~8 at 45x170x4200) into the support beam (1 at 45x170x5400) on the ground from the backside and then lift the entire structure to screw it into the facade? Feels like it would take at least 4-5 people for that.

2. Use a pocket hole joint to screw all the joists both front and back in the air.

What would you do given my conditions?

All input appreciated, thanks!
 
  • 3D model of a pergola structure with dimensions, showing beams attached to a main support line, intended for deck installation.
  • SketchUp design of a pergola with dimensions, showing beams and structure for an outdoor deck project.
F Faceb00k said:
Planning to build a pergola over the existing deck this spring. The pergola's support beam will be attached to the facade, and from the support beam, there will be about 8 outgoing joists that are recessed.

I want the attachment of the joists to be as concealed as possible and am considering the options.

1. Is it even possible to screw all the outgoing joists (~8 at 45x170x4200) into the support beam (1 at 45x170x5400) on the ground from the backside and then lift the whole assembly to screw it into the facade? Feels like it would require at least 4-5 people for that.

2. Toe-screw all joists both front and back in the air.

What would you do given my conditions?

All input appreciated, thanks!
Here is an example of what I'm aiming for
Outdoor patio with modern wooden pergola, dining table with chairs, and decorative plants. Adjacent house with open black-framed glass doors.
 
1. Yes, it is possible to use a crane instead.

2. Skråakruva or skråspika works well too, it’s just a pergola and the fastenings only need to hold the timber, not the weight of a person or snow like a roof or joist system.
 
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Gör de yttre balkarna bredare med höjden av ribborna. Then you won't see their ends from the side of the pergola
3D SketchUp model illustrating pergola design with wide outer beams and closely spaced battens.
And connetion legs-corner meybe like bellow?
3D model of a pergola structure focusing on beam and leg connections, with a separate beam piece illustrating join design.
 
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S sturnus said:
Make the outer beams wider by the height of the battens. Then you won't see their ends from the side of the pergola
[image]
And connetion legs-corner meybe like bellow?
[image]
Thanks for the feedback!

I really like the suggestion on pic 1, hadnt thought of that. If we decide to go for the battens, like on the example picture, we will definately go for this solution.

For pic 2, I am not sure about mitered corners. From what I seen on decking it tends to look really nice year 1 but not so much after that. Maybe its easier to make the mitered corners last longer on pergolas since it can be fastened from more angels?🧐
 
If you make notches in the ledger board, it becomes easier to fasten with toe-nailing.

Wooden beams with notches for easier fastening, resting on grass, accompanied by metal planks.
 
A arkTecko said:
If you make notches in the support beam, it becomes easier to fasten with toe-nailing.

[image]
Or like this
3D model of interlocking wooden joints, showcasing dovetail and housing joint variations.
 
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BengtH
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