Gardening, Woodworking, Timber Frames, Concrete & Aircrete
We build timber frame style pavilions, wood sheds, and pergolas. And cast concrete and aircrete rot-proof, durable garden boxes from forms we designed. Subscribe and see all our videos here. Many of our videos have an accompanying blog post here with more detailed descriptions along with many downloadable detailed plans
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Wish I could buy these in 🇬🇧
Did you make instructional films in the 60s?
Having a raised bed molds is nice, but what if you need to put a hooped shade cloth over your plants. Additional access holes would be nice for a hoop made out of 1/2'' pvc .
In my last batch I used a 1:1:5 ratio of cement/sand/perlite with good results. As you say, experiment with what works for you. I read on the perlite org site that it is best to mix the cement, sand, and water first then add the perlite last to minimize mixing time. Apparently the more perlite is agitated the more it gets degraded. However, I'm not sure at our scale the difference would be significant.
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I think your mix is too dry. Water helps concrete cure. It is a chemical reaction. I assume you have experimented with wetter mixes, what happened with the wetter mixes that made you opt for dryer mix?
Wonderful, Thank you. We've acquired 4 of your excellent molds, with the intent to stack them two courses high. This was appreciated.
Been watching for a few years. So happy to see the progression of this product! I will be a customer as soon as I get through some other projects.
I live in a cold climate (Canada). How do these concrete raised beds react to the soil inside freezing solid? I fear that the corners could be broken by the frost expansion.
By weight, 3% of cement for fibre is the max you want to go. Beyond that there is no benefit and will eventually weaken your mix if you go above 5%. 0.5 to 1% is more than enough for what you are doing.
What does the small amount of glass fiber do?
I have your forms and will add cedar planks for the layer above of the concrete panels. Should look nice (winter project). P.S. Your new recipe is close to hypertufa sans the peat moss.
If you’ve already heard this question or somebody has an answer, that would be great. How do these panels hold up long-term with the freeze thaw cycle in a more extreme climate?
Was the jacket for safety, or was it really cold in your house? Being a Floridian.... Can't help but notice the jacket in July....... lol
Hi, I shot some of that video in the spring on a few cold days.
Duuude..you cut out 14 arches....holeee cow that is a ton of work...i hope you were paid well for it...geeeesh..
These are awesome but way out of my price range
Замечательно!!! Хорошая работа!!!!!😊 22:12
I have enjoyed your videos and have learned alot going forward for my own project. I am wanting to build a 2 tier retaining wall that is more like 3 to 4" thick at 10 to 12" tall/panel thus building my own forms. Another aspect I want to incorporate is stacking offset like standard wall block so I will want another hole in the middle of my bottom sections to drive rebar through the top ends and locking them to bottom sections. I'll be very interested in the strength mix coming in the next video.
Cheers 👍💪✌
Hello from Russia, I've been watching your videos for a long time. The product is excellent, I will do it soon.
Why not laying your mobile phone flat onto the table, means using its round spirit level??
❤ as usual, awesome video
Thank you so much 😀
Saw a tip somewhere… soaking the perlite/vermiculite overnight keeps the mix moist longer throughout leading to higher strength.
Can I buy your moulds in the U.K.?
Hi, we do ship to the UK
Great video as always. I love you are improving it with science and different ideas. ❤❤❤
Thank you!
PS- Please do a strength and abrasion test on the new mix video.
These concrete panels look incredible. I was going to redo my raised beds with simple concrete corner stones and some wooden panels, but now I may have to rethink that. Don't really have any experiencing mixing concrete though.
I am very glad that you continued with the follow-ups and the improvements.
$17/kg on Amazon for the poly fiber. And important to remember you are not making regular concrete that has aggregates for the cement to bind to. For $8#, using an ounce is only adding $0.50/panel. Also, a small $10 kiddie wading pool/trough with water is great to let concrete forms cure for a week or three for absolutely the hardest/strongest result.
You are saying to keep them fully submerged?
Looks great..What’s the highest you’ve stacked ??
Thanks, I've stacked 2 high.
Can it be shipped to Taiwan? Will shipping cost be extra?
Just fyi, microfiber does not prevent long term cracks nor replace reinforcement. It only helps with shrinkage cracking during the curing process, which is when you are more likely to get micro-fractures. For this application I would definitely not skip.
Dude. Make something else.
love your diy garden beds and love your videos! can't wait for the high strength version!
Thanks so much! Coming soon....
I must be hungry that really looks like brownies to me.😅 awesome video again.
Thank you 😋
Is there any reason these couldn’t be used in a single layer as a short retaining wall?
I have been watching for 2 years and I finally purchased a set for my garden. Thank you for all your videos.
Thank you very much!!
Why don’t you leave the wire wrapped pipe in the concrete? It can’t be that expensive and would absolutely protect the inner diameter of the holes from the rebar you use to connect the pieces. In fact I’d use pieces of Pex tubing for added strength and cushioning against the steel. And you don’t have to worry about damaging the concrete to pull them out.
How often do you think anyone is going to be placing and removing rebar supports such that one would ever have to worry about 'protecting' the holes? Adding PEX would reduce wear and tear, but sure as heck isn't going to give any sort of 'strength'. Very odd set of worries...
Where I'm located, I would worry more about water filling holes and then get freezing/expansion in the winter leading to the ends getting busted out.
Thank you for the new video. The lightweight panels continue to evolve.
Could we place a small wooden right-angle triangle in the corner of the mold to allow the panels to be placed at 45-degree angles to each other rather than 90-degree?
Always very interesting, enjoyed this series on mold/upraised garden beds very much! Did you tried smoothing the corners while mix is set, but still wet? Also with added weight of growth medium in bed the longer rectangle will tend to bulge out -so some sort of tie accross the long sides to be consider. But maybe the rebar wont give.
If you watched the video he talked about that
Vermiculite has asbestos so don't breathe the dust
It used to. But, now it is all certified to be free of asbestos.
I’ll be buying some
To make separation easier, use compressed air at the joints. We used to separate boat hulls that way.
Fantastic. Really love this series and appreciate the updates. 👍
Great to hear! Thanks!
I am excited about the molds! I am not excited about making my own currently and this will give me more of an incentive to make raised garden beds. When I have a new property and tool shed that I want I will be happier to make my own design of molds with wood. Maybe something fancy. I am dreaming of making the surface rough and sealing the cement then spraying a moss starter on the outer surface to make it all look organic after the moss grows in.
48" form please
24”x48”
@@patrickmckenzie2391 No 48" plastic forms
In the works....
I have plans to do exactly this for the foundation of my green house. I have 18 inch tall blocks from following your design, I plan to mortar in the blocks, and then just frame out some recycled windows I got from a friend's house when he got his windows replaced.
Best way to start my Sunday. Thank you, legend.