Weight Restrictions on Lap Joint Pergola
I have a simple square pergola in my backyard. It's made of 6" x 6" beams
that are lap jointed. I want to hang 2 swings on each of the two beams. Is there a weight restriction given they have lap joints? the swings would be wooden and be able to hold an adult. -- for full context, visit https://www.homeownershub.com/uk-diy...a-1370214-.htm |
Weight Restrictions on Lap Joint Pergola
On 03/07/2019 20:14, Sus wrote:
I have a simple square pergola in my backyard.Â* It's made of 6" x 6" beams that are lap jointed.Â* I want to hang 2 swings on each of the two beams.Â* Is there a weight restriction given they have lap joints? the swings would be wooden and be able to hold an adult. It depends on how long the lap joints are, what is holding them together and if the lap is vertical or horizontal. |
Weight Restrictions on Lap Joint Pergola
On 03/07/2019 20:14, Sus wrote:
I have a simple square pergola in my backyard.Â* It's made of 6" x 6" beams that are lap jointed.Â* I want to hang 2 swings on each of the two beams.Â* Is there a weight restriction given they have lap joints? the swings would be wooden and be able to hold an adult. It depends on how tightly the bolts are done up. Are there star washers in the lap joints? And nice big washers on the outside, to stop the nuts and bolt heads sinking into the timber. Is there any diagonal bracing? If not, you might find it tends to go parallelogram shaped especially with adults swinging vigorously. It also depends on how long the beams are, but I'm guessing it's a normal sort of size. Also, are the uprights set into concrete or metposts, or just standing on paving slabs? Also, I am confused about what you mean about having two swings on two beams. Do you mean two parallel beams? Presumably this means the perpendicular beams are quite long, to prevent clashing? And if it is square, this means the cross beams must be quite long too. The strength will also depend on the type and quality of the wood, but I have probably asked enough questions already. And I've probably missed a few. |
Weight Restrictions on Lap Joint Pergola
On 03/07/2019 20:14, Sus wrote:
I have a simple square pergola in my backyard.Â* It's made of 6" x 6" beams that are lap jointed.Â* I want to hang 2 swings on each of the two beams.Â* Is there a weight restriction given they have lap joints? the swings would be wooden and be able to hold an adult. Yes. -- I would rather have questions that cannot be answered... ....than to have answers that cannot be questioned Richard Feynman |
Weight Restrictions on Lap Joint Pergola
Yes its not the weight its the stresses if somebody actually swings. I guess
you could just put a mattress underneath and wait for it to collapse! Brian -- ----- -- This newsgroup posting comes to you directly from... The Sofa of Brian Gaff... Blind user, so no pictures please Note this Signature is meaningless.! "dennis@home" wrote in message ... On 03/07/2019 20:14, Sus wrote: I have a simple square pergola in my backyard. It's made of 6" x 6" beams that are lap jointed. I want to hang 2 swings on each of the two beams. Is there a weight restriction given they have lap joints? the swings would be wooden and be able to hold an adult. It depends on how long the lap joints are, what is holding them together and if the lap is vertical or horizontal. |
Weight Restrictions on Lap Joint Pergola
Post a photograph and folk can give you an informed guess, otherwise we're all just guessing.
Tim |
Weight Restrictions on Lap Joint Pergola
On 04/07/2019 03:03, The Natural Philosopher wrote:
On 03/07/2019 20:14, Sus wrote: I have a simple square pergola in my backyard.Â* It's made of 6" x 6" beams that are lap jointed.Â* I want to hang 2 swings on each of the two beams.Â* Is there a weight restriction given they have lap joints? the swings would be wooden and be able to hold an adult. Yes. No. He hasn't said how long the horizontal bars are and how well secured the verticals are, and as a pergola it will have no triangulation, which is even worse. |
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