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Timber frame octagonal gazebo

7.7K views 5 replies 3 participants last post by  TroyByonn  
Traditional Timber Framed Gazebo...Yay!!!!

TroyByonn said:
I would like to build an octagonal gazebo, timber framed. Does anyone here know any resources on which joints to use?
Hey Troy...!!!

I live for posts like yours...this should be a fun project to follow along on...Yay!!! AND a big YES!! to your joint question (and then some...haha.)

NOTE...LOTS of pictures please as you progress!!

TroyByonn said:
We were thinking about 4 meters diameter (outside radius about 2.2m).
Awesome again...!!

I like the size, and actually work exclusively in metric. So for most American projects have to convert my designs back to Empirical and lots of little fractions...But hay, if that's what folks want, I'll do it for em...:grin:

TroyByonn said:
I've tried looking in my books and on the internet, but only found plans and videos that fixed things together with nails and angles.
There isn't a great deal out there in general and especially in English and/or in the current state of publication...Plenty of stuff (as you can tell) on how to just screw, glue and nail it all together...Which is kind of the current rut in the consumer society of...just get it done...and tear it down later when not happy with it or it starts falling apart...

Glad you are going for the traditional and time proven methods of joinery...Yay again!!

TroyByonn said:
The first obvious question to me was how to connect the 8 plates (on top of the posts, which hold the rafters).
Ooh...that can be looked at as lots and lots of fun...or...very tricky...haha...It all depends on one's individual perspective...

The question is which Rabbit Hole to go down...??? :shifty::glare::sweatdrop::pinch::vs_worry:

Lots of styles/methods to choose from when we start...Building in the Round...and what makes such Garden structures so much fun to work with...Plus, they have a magical (and long lived) enduring quality that not many structures typically have...

There are: Queen Post, King Post, Dragon Beam, Corbels, and now becoming very popular are Reciprocal Roof methods...and/or combinations there of for each...Just to mention a few off the top of my head...

TroyByonn said:
I'll gladly buy a book or pay for a plan, provided it is actually timber frame.
If it comes to that Troy...so be it....I would be glad to help there also...

However...I don't join these forums to solicit...I join to share and teach, which is another portion of my day to day work within the Traditional Arts in general...Plus I like seeing...REAL...DIYers succeed and do it the best way possible they can the first time without trying to reinvent the wheel or bastardize a traditional method with modernity at every corner just to get something up...or out of laziness...

So, let's see where we can get too on all this as it pertains to your abilities, tooling and completion time along with related goal sets...

Regards,

j

Here are some links for fun, pleasure and perhaps stimulating ideas or musings...

Cruck Style Timber Frames​​

파라솔정자 - Palasoljeongja

원두막 Wondumak

外腰掛 Sotokoshikake

Sheds and Greenhouse for Gardens

Reciprocal Roofs

八角円堂 Hakkaku endō (and related) are some of the most enduring of these Octagonal structures...and perhaps what stimulated the first Gazebo in the first place...

For a stunning and enduring foundation system perhaps I could suggest scribing wood to stone - ひかりつけ - Hikaritsu ke
 
TroyByonn said:
I think the "simplest" way is to use an 8-sided hub and just let all the rafters meet up there.
Hey Troy,

Great to hear I was of some help!

You're thinking of how to do it simply is most correct...Even if "stick building" there really isn't any need for hard wardwear of any type. Just bring all members up to their intersecting point...be it 4, 8, 16, 24, or even more...and peg, spline or mortise & tenon... Actually, the more rafters in many designs make it stronger and simpler because the..."eye's view"...is distracted by all the intersecting timbers and doesn't tend to focus as succinctly onto any small openings that may exist. With only 4 or 8 rafters those fissures between Rafters tend to be much more obvious...then in turn...become a focal point themselves.


TroyByonn said:
Do you know of any books in japanese dealing with these topics? Or any other language?
Yes...I have an Amazon book list I give students. Note: I use Amazon because it is the most convenient place to have the list...I don't solicit for or recommend any set vendor...and actually like local bookstores and collectors for my personal sources whenever possible.

Most (not all) of these are in English on my Amazon Book List. The ones in other languages are overseas, in collections, and/or out of print and difficult to find except by academics and "Nerds" :nerd2: like me... Plus, making sense out of them is a full time job in itself unless already a very accomplished historical woodworker...but it sure is fun if you do get into this more deeply Troy!!!

TroyByonn said:
I'll need more time to go over all the images and decide on something simple enough so I can actually build it, but I'll be coming back with more questions ;)
I might be slow, but I'll be here...:wink2:

Feel free to email me also if you would like...

TroyByonn said:
We have lowest winter temperatures of about -20°C (~-4°F). Would it work to dig 8 holes to about 1m, fill them with rubble, put a stone on each and place the octagon posts on those stones? or would I have to actually put concrete in the holes? I'd love to have some way of making the foundation without concrete :-/
First...I despise OPC (modern Ordinary Portland Cements) of any kind...!!!

They are a major environmental polluter, and seldom standup to the their claims as well as the Cement Industry would like to have their consumers believe...It's nasty S_ _ _T!!!...all in all. I only employ it on projects when some "Numbnut" thinks it has to be used, or there is some other urgent need for it out of my design control...

Unfortunately Natural Cements have become cost inhibitive and few even know they can get it. Traditional Geopolymers are coming back into understanding and use, but that again is outside the scope of most DIYers...

So, that brings us back to good old...tried, true, and prove...Plinth Stones and/or Dry Laid stone foundation...(traditional brick with lime mortar is grand too!!..:grin:)

In short...Go with gravel below local frost levels and a nice rock!!!

I will point out for those that are thinking or suggesting that this could get blown over that it is no more likely to get blown over than any other structure hit by a major wind event...The structure (whether on concrete or stone) can be tied to the foundation if it is really necessary...but with a timber frame, it can always be taken apart and moved or sold...can't really do that with freaking concrete, 2x and the related crap that goes into architecture today...

I would also point out that the traditional frames in Japan are the only structure in the world to be subjected to an Atomic Blast and keep standing...the modern structures blew apart...so I think stone plinths have more than proven they are up to the task of supporting architecture a hell of a lot better than most of the "junk building" we do today...but that's just my view of modernity in generally...It's new, but it sure as heck ain't better...

Till Later Troy...enjoy Nerding Out on all this...

j