Forno Bravo Forum: The Wood-Fired Oven Community

Forno Bravo Forum: The Wood-Fired Oven Community (
-   Getting Started (
-   -   Kansas Corner Build (

Saggy 10-02-2012 09:24 PM

Kansas Corner Build
4 Attachment(s)
Hi all!

First off, I'd like to say thank you to FB for this outstanding forum. I'd also like to thank those who have continued to answer questions years after their builds were complete. It is inspiring to see the cumulative effects of the 'minor' innovations. You guys are producing some gorgeous work!

My WBO was designed into the corner of a stone patio project I had going as an afterthought. I didn't give the hearth planning enough thought because there were so many moving parts to this project. I would like to build a 42" oven. The dimensions all worked in my head until I actually drew it out tonight. I didn't add the extra 9" to the outside edge of the dome. All my measurements were taken based on 42" instead of 51". Total rookie mistake! :eek:

So, my question is what would you all do in my situation? The slab isn't poured yet. I can extend the slab over the back side of the patio frame, but I don't know yet what I would do to veneer the concrete. I could also build a really short oven landing but I think I would regret that.

Not sure what to do here. I am trying to follow the guidelines as posted at Which means 42" floor + 9" walls + 6" vent floor + 5" rear insulation + 5" 1wall + 12" landing.

Sorry for the quick hand drawings. I'm having someone pour the slab on Thursday and need to know what to tell him. I'd pour it myself, but I'm running out of Fall days to work. :rolleyes:

In case it isn't obvious, the drawing shows the top down view. The pictures show the corner where the oven will be built.


SableSprings 10-03-2012 08:48 PM

Re: Kansas Corner Build
Nice looking setup for your outdoor kitchen. If you extend out to the back and sides for the top slab 8"-10" to accommodate the 42" design (total 51" radius) what you have should provide enough base long as you put in adequate rebar into the slab top. I agree with you that sacrificing the landing area is not an option. If the accommodation for the 51" dome footprint isn't something you want to frame/form up, then do you need to have the larger oven or can you scale it down to fit your entertaining "estimates"?

If you want that 42" WFO, then extending out the back with the top slab will work just fine. It will give you some added overhang in the back, but so what? Remember to either put in center post/beam support for your slab pour since it is going to be quite a load until it sets and takes up its own weight/support.

Saggy 10-04-2012 02:09 PM

Re: Kansas Corner Build
Thanks for the response, Mike. It has been a big project that I guess just needed the added complexity of a hand built oven. :)

I think you're exactly right about the 'so what'. The slab will be 4" just like the other wall blocks so it won't look too out of place. We are going to put granite around the green egg and gas grill so I've also been toying with the idea of bringing an arc of granite out in front of the WFO for the landing. I'm going to get out there with a tape tonight to see how the dimensions work out.

I've not historically been good about documenting projects like this, but it looks like the threads remain useful to new builders long after the building is complete. I'll try to keep posting as things come together.

deejayoh 10-04-2012 03:36 PM

Re: Kansas Corner Build
Are you planning an igloo or an oven house? For an oven house, your dimensions seem small. 3" for insulation each side, plus another 4" each side for an oven house for a total of 14". Not sure how much more the stucco on an igloo adds, but I imagine it's at least 2" per side beyond the insulation.

You might think about a slightly smaller oven - say 39"

Your stand is interesting. Haven't seen those type of blocks used. Did you mortar them together?

dsm 10-04-2012 04:19 PM

Re: Kansas Corner Build
Very nice looking setup saggy.

Saggy 10-08-2012 06:45 AM

Re: Kansas Corner Build
5 Attachment(s)
Thanks guys! I am planning an oven house. And I think you're right, deejayoh. I'll probably have to scale back to 38" or 39". Not a big deal. I don't really think I'll be able to tell a difference between that and 42". I just want to make the oven as big as possible.

The stand is actually fastened with masonry adhesive. The wall on the back side stands about 6'. I have used these blocks for walls and patios before. They hold up very well. I actually had to pry part of my patio frame apart this weekend to extend it out 2 feet. The adhesive stuck so well that the concrete pulled off the stones when they separated.

My patio floor is now done. The slab is poured. The concrete forms come off the slab today. I guess my next step is to lay out my floor on top of the slab?

Also, the ceramic fiber insulation I got to go under the floor came in 1'x3'x2" sheets. I have enough to go 4" thick. Is it worth it to do that?

I am venturing outside of my comfort zone at this point. Everything that I have done so far on this project I have done a couple times in the past. Building the oven and mortaring the house together are completely new to me!

Here are a couple pictures of the progress.

texman 10-09-2012 12:29 PM

Re: Kansas Corner Build
Hey Saggy
That is great looking setup you have there. One comment though and i hope the others will chime in on this. The arch you have is going to have to carry a lot of weight(concrete base, dome brick, floor brick, house, etc.) The arch has a wide opening span and is thin in the top and middle. you appear to have some buttress support from the adjoining walls that will help. Ask the guy doing the concrete what he thinks as well. I can't see if you have steel in there or not. You might want to support that with some heavy angle steel inside of the arch if you can or maybe i just cant see it, but you definitely dont want a failure there.

Saggy 10-09-2012 01:29 PM

Re: Kansas Corner Build
Thanks, Texman. I'm actually going to get an opinion (not formal analysis) from an engineer before I go any further. I THINK everything is sound with the arch. Most of the load is carried by the frame wall at either side of the arch. The slab is 4" thick and reinforced with a 6" rebar mesh so even if the arch falls (I hate even typing that) I THINK the slab could span the gap.

But, like I said, guessing won't cut it here. If I'm told I need to reinforce it then it gets reinforced.

Thanks for the input.

texman 10-09-2012 01:40 PM

Re: Kansas Corner Build
Good to hear. I think you are right that the slab will carry the load with proper reinforcement, but support that arch until the slab sets for sure. Looking forward to your build. The corner builds look great i think, but they keep you thinking all the time.

Saggy 10-09-2012 02:58 PM

Re: Kansas Corner Build
I've been perusing your build page, Tracy. Very nice! It's funny; your first post regarding the floor is almost exactly where I am at. Your descriptions of the problems you encountered and how you fixed them are informative. I'll be referring to your build a lot in the coming weeks.

What was the final IT design you settled on? It looks like you went through several iterations.

All times are GMT -7. The time now is 02:53 AM.

Powered by vBulletin® Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
2006/10 Forno Bravo, LLC