Questions tagged [pergola]

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39 views

Attaching Pergola posts to lumber on ground

I'm a new homeowner with DIY enthusiasm to improve the outdoor living space. Recently completed build my fence now planning to do a pergola first and then add deck to it so we can enjoy some outdoor ...
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4answers
81 views

Aligning pergola rafters to the sun?

I live near Denver, Colorado (so northern hemisphere, some good snow storms in the winter, lots of baking UV in the summer) in a 1970s-built home and I'm putting a pergola over a patio in my back yard....
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1answer
100 views

3-Arm pergola corner bracket for 4x4s?

How can I reproduce the functionality of these 3-Arm pergola corner brackets for 4x4 wood posts? My concern is that it will need to securely hold the weight of the treated 4x4. They would be used for ...
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36 views

Pergola post placement

I have contracted someone to build a pergola. The posts are 6x6 and placed oddly due to the back yard dimensions. The issue I have is that the post were set on Sunday and the braces were removed on ...
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1answer
100 views

Are 2x6 rafters adequate to carry a day bed in a pergola?

I'm working on my first big project, a 10x16 pergola. The long side includes three 6x6 posts 8 ft away from each other. There is another row of 3 posts 10 ft away parallel to those posts. All posts ...
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1answer
77 views

Setting 6x6 posts in concrete

We are building a pergola-swing with two 6x6 posts as the main supports. The posts are to be set in a 12" diameter sonotube footing, 36" deep. I am unsure as to how much concrete to buy ...
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0answers
37 views

Best practice to build a pergola type structure

Having patio pavers laid, I want to build a pergola like structure for my home in the Northeast. Something like this: Questions about best practice: Should I use tubular forms outside the patio? ...
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1answer
54 views

Pergola wing span

I am building a pergola with dimensions of 20x17. I am planning on using 4 6 x 6 posts, 4 2x 10 x 24 feet running along 20, 14 2 x 6x 20 Feet running along 17 feet(rafters), 14 2 x 2 x 24 on top for ...
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1answer
108 views

Anchoring floating deck and pergola

I want to build a floating deck with a pergola but I don't want to set posts in concrete. My yard is mostly shale with about 5 inches of actual topsoil, if that. My question is, could I put treated ...
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0answers
110 views

Beam size to span 18 feet for deck roof

I'm looking for help on planning a roof over a deck I plan on adding to my house. The roof will be 18' wide and extend out 12' from the house. I want to have at least a 1' overhang on each side making ...
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0answers
86 views

5 Post Pergola Design - How big to make the beams and rafters?

I'm building a new deck and pergola in my backyard. The deck is pretty much done, and the pergola posts are in. I'm now I'm trying to decide how to finish up the pergola. Deck is roughly 12 feet wide ...
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208 views

How can I replace an existing pergola supporting mature wisteria?

We moved into a home with a 15-year old wooden pergola that is supporting mature summer wisteria vines. Most of the "beams" are 2x4s, all the beams are sagging, and the wooden lattice roof ...
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2answers
346 views

How can I reduce flex/sway in my pergola?

I'm starting my backyard renovation project. I've put in a large concrete slab (18'x26'). Now I'm building a Pergola over the slab. My pergola construction is as follows: 6 - 6x6x10 posts (Grade 1) ...
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1answer
664 views

What size knee braces should I install on my Pergola?

I have a 20'x20' pergola on a concrete patio. Construction is 8"x8" posts sandwiched with 2"x8" rafters. I notice some swaying during some thunderstorms with heavy winds and I can ...
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3answers
1k views

Can pressure treated wood be buried in concrete?

I was planning a relatively simple, 6x8ft "2-post" pavilion, just a small structure to provide protection to a small bench. This design would require to bury the wood into the concrete ...
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0answers
20 views

Roof for an already built pergola

I am looking to put some sort of roofing over a pergola I have built. I had planned a fabric roofing but that didn't go as planned as the material wasn't taught over the beams and didn't look good. I ...
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1answer
357 views

Properly flashing ledger board for pergola or overhanging patio roof

I am wanting to build a roof over our west facing patio to help with the heat of the day. I was thinking either a pergola type structure with a roof on it, or just an overhang. The structure will ...
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2answers
208 views

Adding a pergola to my deck; ok to replace corner railings posts with pergola posts?

Planning to add a pergola to my deck for shade and growing grapes and need help deciding if I should extend the posts of the pergola to the ground on a concrete base or if I can just attach it to the ...
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1answer
2k views

Is it normal for a freestanding pergola to wobble a little bit?

We built our first pergola (20'x 18' x 10' tall). We used cedar with 6 - 6x6 posts with 30-inch concrete footings attached with 1/2" J bolts to OWT/OZCO post bases. We have double 2x8 beams that span ~...
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0answers
195 views

Freestanding Pergola with 2x12x15ft beams need knee braces to prevent sagging?

I built a freestanding pergola on my existing pool deck. I used pressure-treated lumber, ( southern pine ) eight 6x6 posts sandwiched with 2x12 beams that span approx. 15ft, 14ft and 10ft. All ...
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83 views

Will 2x8 beams span 15 feet for a pergola?

I want to build a 15' wide by 10' deep pergola, which will be attached to the house. The posts will be attached to an existing (and very sturdy) ground-level deck. I'll be using 6x6 posts with 2x8 ...
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1answer
1k views

Anchoring Aluminum Pergola To Paver Patio

I'd like to install an aluminum 16 x 12 pergola on my existing paver patio and I'm wondering the best way to anchor it. It comes with brackets to bolt the posts into concrete, with the bolt holes in ...
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1answer
106 views

Pergola rafter spans

Wanting to build a pergola to cover a deck that will be connected to my house ledger board. Constraint is the deck size and not wanting to put a post in the middle of the deck. Details: - planning ...
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2answers
736 views

Need help reinforcing a pergola

We built a pergola last fall and are noticing some wiggle in the structure. The columns are bolted into deepened edges of a concrete slab, But we did not want traditional brackets at the column to ...
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1answer
36 views

How to attach replacement beams to column when repairing pergola

I'm planning to replace some rotten beams on a free-standing pergola. What is the best way to attach them to the top of the existing columns? The columns are hollow squares made of 3/4" boards with a ...
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2answers
181 views

I am building a pergola. What size of beam will span 20 feet. There will be no load on the beam aside from the weight of the beam itself

This is my first time here and I have looked at other questions regarding pergolas. However, my situation is unique. There will be no load on the beams. The pergola is 20 foot x 20 foot. It only ...
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0answers
39 views

Fiberglass Ledger Board for Pergola

I am building a 20’x22’ attached Fiberglass pergola to my home. The ledger board is Fiberglas and a length of 19’. The pergola weighs approximately 700 lbs. The wind gusts can reach up to 50 mph, not ...
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1answer
342 views

Please help - wonky post location on pergola - concerned with shearing and stability

So ever since my wife pushed me to move the post off square I've been searching online (periodically for about a month and I've never found someone dumb enough to have done this and had a tutorial or ...
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3answers
2k views

Could a steel beam span 24 feet for a pergola?

First time post here, thank you for such a great resource! I've done a lot of research but am hoping I can get some help building a pretty large pergola. I'm trying to be my own master contractor and ...
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2answers
524 views

What happens to outdoor douglas fir if protected but untreated?

I'm building a large outdoor living space in the pacific northwest (Vancouver, Canada) with rafters, purlins, beams, and posts all douglas fir. It will all be covered with transparent polycarbonate ...
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1answer
6k views

Max distance for 2x8 pergola rafter span

Building pergola with two rows of 3 posts. I'd have 2x10 beams mounted on the posts supporting the 2x8 rafters, but I'm curious how far apart I can push my rows of beams. Ideally I would love to have ...
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0answers
523 views

18'x16' Pergola Questions

So I’m looking at building a pergola on top of our raised deck off the back of our house. Total dimensions would be 18’x16′ (roughly), raised 8′ above our deck. Our deck is raised off the ground 4′-6′ ...
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2answers
76 views

Are fence posts sturdy enough to support an addition of a wooden cover?

Trying to figure out how bad of an idea is adding a ~3-4’x6-7’ pergola type ”roof” supported by pressure treated fence posts. How to understand if it will hold or not? It's in the US PNW, so no ...
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1answer
114 views

Pergola planning

I'm planning to build a relatively large wooden pergola of about 4 meters or 13 feet wide per 7.5 meters or 25 feet long. I'm not planning to add a roof or extra crazy load to it. On one end I'd ...
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2answers
491 views

Is a ledger board required if the side of my house is wood?

I'm looking to attach three posts the the side of my house and I'm wondering if a ledger board is needed? Looks like this:
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3answers
333 views

Need help designing an oversized pergola

Looking to build a pergola for my back patio. I’d love to cover the whole area (30’ wide x 24’ deep) without any posts in the center. I’ve attached a picture of the space, sorry it’s dark and a mess. ...
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2answers
652 views

I dug holes for my pergola too wide

I accidentally dug holes for my posts way too wide. They're like 22 inches wide and the width of the post is just 3 inches. I didn't know at the time that you only need the width of the hole to be ...
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1answer
638 views

Pergola : Can I use 4 - 6x6 post, with 2x10 beams sandwitching 6x6 post for 17ftx17ft

Planning to use 4 - 6x6 post, with 2x10 beams sandwitching 6x6 post for 17ftx17ft. Using 2x6 rafter with 2x2 slats. Has anyone created 17x17 pergola with 4 posts - any input and suggestion to ...
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0answers
39 views

Shade sail/fabric covering with sealed/flush edges?

I know the typical shade sail shape is bowed on the edges because of tension, etc. but is it possible to get a completely square shade sail? And also to have that shade sail be completely sealed/...
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1answer
2k views

Pergola on flat roof: Can it be done safely?

I want to put a pergola on my flat roof but am not sure if it's possible to construct one safely. My roof is a wide open flat surface built to be enjoyed as a rooftop deck with tufflex deck layer. I ...
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1answer
94 views

Roof Design for an Octagon Shaped Pergola

I am looking to put a roof over a octagon shaped patio. I have 4x6 posts at each corner. What size beams would I need to put a pergola styled roof above the patio to span the 12' distance in between ...
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1answer
1k views

Adding a pergola to an existing deck?

I have an existing deck on the back of my house, and I’d like to add a pergola. The deck is 17’ x 16’, and I’d like to build the pergola to roughly match the size and shape. The attached picture ...
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1answer
511 views

What to do with metal fascia wrap when attaching ledger board for a pergola?

I want to install a pergola over a space out my back door. My plan was to cap and remove the gutter from a section of the fascia and attach a ledger board (secured to the rafter tails). What I'm not ...
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1answer
4k views

Pergola attached to house and load capacity for 6x6 post

My question is how much load can my 2 each 6 x 6 pre-treated post handle. I have approximately 1,466 lbs of treated wood as my roof of the pergola and it will be attached to the house the other will ...
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2answers
14k views

How can I extend my deck posts to support a pergola?

I am looking to extend my 4x4 corner posts on a deck to build a Pergola over top of the deck. I also plan on sleeving those 4x4's with a composite sleeve for the full length from the 4x4. So the ...
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1answer
1k views

Pergola span 2x6x16

I've been thinking about putting a pergola in my back yard using 4x6 post mounted on top of a cement slab. I want it to be 8ftx16ft. I want to use 3 post in the rear of the pergola, and just 2 in the ...
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0answers
74 views

Can I leave one of the pergola legs unattached to the ground (just sitting on the patio)?

I am planning to install a pergola over the table and 6 chairs that sit at the corner of my rectangular concrete bricks patio. I am going to dig to install post supports for the three legs that will ...
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1answer
1k views

What are some ways to fill a small gap between a wooden column and a concrete wall

I have wood pergola columns connecting to my house through fixtures which are fitted into grooves in the wood. The wood was cut slightly too short (or due to small variations in the wall), there is a ...
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4answers
5k views

Can I use LVL 2x4 outdoors (pergola roof)

A few days ago, I got a letter from the HOA telling me that I have to replace the warped, twisted, sagging 2x4s forming the roof of my pergola. I have absolutely zero confidence that any PT 2x4 I buy ...
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0answers
781 views

How to NOT attach pergola close to house

I want to build a pergola over my back patio slab. I want it to be "immediately" when you walk out the back door. With that being said, for simplicity sake I'd rather not attach the pergola to the ...