Introduction: Concrete Block Handles

Concrete blocks (or CMUs, or Cinder Blocks, or Free Weights, or whatever) are heavy.

Yes, they are designed as an efficient construction material meant to be maneuvered by hand under normal human power, a feat they excel at, as evidenced by their ubiquitous proliferation.

But what if you're not a normal human? What if you work in an office all day and have the equivalent forearm strength of a small child? Or what if you just don't really want to torque up your wrist and elbows hauling big heavy things because it would interfere with your tennis swing or the fluidity of your interpretive dance expressions? Or what if you're an OCD engineer and simply must devise the most efficient load transfer mechanism throughout your body for every single item you ever pick up? Or what if you're lazy?

Well, gather around misfits, and hear tell of how you, too, can be of some marginal use on a construction site, despite your crippling dainty or schizoid mannerisms.

Step 1: Think.

This is important. A great man once said, "Think - don't stink." *  That guy was totally right.

Man is a tool-making creature, not because he is particularly noble, but because he is lazy, and would prefer it if the laws of physics would do his work for him, or at least interfere with his desires as little as possible.

One of those laws is Gravity. More often than not, Man finds himself diametrically opposed to this law. He is at odds with it all day long, and though he appreciates its purpose, he will try to circumvent it at every opportunity. But in order to do this, he needs to know a little about it, for "Knowing is half the battle." **

So he sits down in a comfortable chair (See? Already he's giving Gravity the proverbial finger, because his legs sure as smack don't want to carry all this weight around) and says to himself:

"Gravity moves in a straight line, and an object supported any angle apart from directly up and down will incur additional resistance, particularly at those points at which departure from vertical begin." Or "Heavy things held out make arms and hands hurt."

In order carry a concrete block normally, Man would grip the block from the side, offsetting the block's loading axis from its center to the edge. Now, the block is a tightwad and will follow Nature's statutes and by-laws to a T, so when it senses it's being picked up off the prescribed axis, it will contort itself until it has re-righted itself with Gravity's regulations. As it angles itself, it becomes more inconvenient for Man to hold. He must angle his wrist and elbows to counter-compensate for the block's adjustment and tighten his grip to prevent the block from slipping. All of this because he marginally infringed upon Gravity's "straight down" clause.

But what if there was a way to keep everything in line? What if there was a way to grasp the block from straight above? It would mean eliminating all ancillary stresses from the equation, rendering the block much easier to maneuver... but how?

Now, bear in mind, Man is not a creature of infinite intelligence, and thinking takes effort, so he employs another strategy to hold information for him and minimize his own exertion - he draws. And once an image mysteriously appears that makes some modicum or sense, he musters up enough strength to get out of his chair and get to work.



* This person's name was Apollo Creed. He was a genius who hospitalized an Italian with a below-average IQ in a fist-fight. Later, he lost to that individual, but while his opponent came close to squandering all of his new-found wealth, Apollo managed to retain buckets and buckets of money, because he was smart.

** Quote from another one of history's most pivotal personalities.

Step 2: Things to Buy! or Bum! or Steal!

1 - 80" of 3/8" (#3) Rebar and some means of cutting it. Bandsaw, handsaw, grinder with cutoff wheels, laser vision, whatever.
     OR
     [4x] 24" lengths of 3/8" (#3) rebar

2 - 10" of 3/4" PVC pipe and some means of cutting it. Not laser vision. Will melt.

3 - A long metal pipe or two. I used 1" EMT conduit at about a 6' length.
     Oh, and a vise.
    OR 
    A fancy-pants rebar cutting/bending tool
   
OR 
    A MOM Corp. Bending Unit

4 - Zip-ties.
That's right.Zip-ties. Because they're awesome.

5 - A welder? This is semi-optional. If you can, do it, but if not, you'll still be alright, I guess. You will just lose 0.7 seconds every time you go pick up a block. Some of you couldn't care less. Some of you require this as much as oxygen.

Step 3: Rebar.

Rebar is a magical material. As a steel product, it's most useful quality is its high tensile strength, which is why it's used as a complement to the high compressive strength of cement and aggregate in a reinforced concrete system. They're like peas and carrots. But what makes its so very much more spectacular is its "toughness." Unlike iron and glass, which are both "strong" materials, steel is not brittle and will not snap or shatter under stress. It is more malleable and can be bent into a number of shapes while still retaining much of its strength. So it's strong and pretty easy to work with. That makes it desirable, which (in an example of good market theory) makes it plentiful, which makes it pretty cheap. It's magical.

First thing you'll want to do is get ya some. Go to your favorite big box hardware store or jobsite dumpster* and pick you out some winners. The handles I made were designed for a 8" thick block with a clearance of maybe 2" - 2.5" for my hand above the top of the block, which can get up to 1.5" thick. The handle itself is going to be even with the block (keep things symmetrical, and just to make things easy), so I figured 8" (block bearing surface) + 4" (clearance bar) + 8" (grasping handle) = 20" total. You'll need 2 of these for each handle you make. If you make 2 for yourself (since you have 2 hands, and carrying a block in each hand evens the pressure on your body), you'll need:

80" OF CONTINUOUS 3/8" (#3) REBAR or
(4x) 24" lengths of  3/8" (#3) REBAR
[Makes 2 handles, in case you're skipping the commentary for the meat.]

When you get 'em, cut them down to the 20", then mark at the numbers mentioned above (8" on each end, 4" in between).



*Don't do this unless you: A) know the contractor really well or B) have a unique desire to see the inside of a hospital or holding cell.

Step 4: Rebar - Part II (Feats of Strength)

Seize the rebar. Bind them. Bind them with the locking plastic bands of lore. Tying two sticks together will ensure that they bend consistently with one another.

Into the vise with them. Align your marks with the edge of the vise.

Once clamped down, grab a large bar or other device that can apply a lot of leverage and make you feel like a superhuman. Proceed to act like a superhuman. I recommend bending to a very slight acute angle (when loaded with a block, the bar will flex slightly).  Flip and repeat.

If the two bends don't align correctly in the Z-Plane, you can rotate the assembly vertically in the vise (so that the legs are above and below each other), grab another long bar and bend the two legs in opposite directions until they are corrected.

Isn't leverage amazing? Think of it this way - the tremendous amount of torque you're applying to the steel (the work you're putting in) at minimal effort to yourself will be relieving the torque put on your joints by the blocks. You're storing energy into a system instead of exerting it on your body. By using the material's natural properties and some basic principles of universal mechanics, you've loopholed Gravity and not only lawyered your way out of excess work, but have gotten Physics (your constant rival) to foot the bill. So cheers to you, you crafty, cunning, conniver. You deserve a comfy chair. 

Step 5: PVC.

I used (2x) 5" lengths of 3/4" PVC Pipe because 2 sticks of #3 rebar just fit so perfectly inside it. Secure, but enough room to rotate... brilliant.

I'm not telling you where to get it, though. It's a secret. Find your own PVC. And cut it yourself. You're an adult.

Step 6: A + B = .....

Remove the constraints from the rebar, and slide the tube right over a set of bends.

If you don't plan on welding the forks open, then congratulations! Your work can technically be considered done! When you go to hook a block, you'll just have to take half a second to split the forks evenly apart in the core. (Again, evenness and centrality in distribution of load. Thought that would be clear by now.)

If you plan on trying to save those extra seconds by welding, then you should do this anyway. Of course, you were going to whether or not I said anything, because you want to test to see if yes, actually, everything will go together correctly and because it is just so very rewarding to get a glimpse of the final product as you're going along. It's ok. I know.

All done? Good. Moving on...

Step 7: Bzzzzzzt. Bzzt-bzzt.

If you know how to weld, you are already 1/3 of the way to owning the universe.

For this exercise, all you need is just a few tacks up and down the handle to set the angle, plus some little beads on the ends to keep the PVC in place. (Oh, you'll also need a cool uncle that has the equipment to shoot magic lightning bolts with relative accuracy.)

Step 8: Prettify. (Optional)

Functionally, the carriers are now ready to operate. Two reasons to spend a little bit of extra time finalizing the product, though:

1 - Psychologically, people are far more inclined to take better care of things that are "finished," things that display evidence of slightly more particular care put into their creation or maintenance. This means that they may get treated with some degree of respect and last a bit longer.

2 - Super-bright fluorescent orange shows up easier on a construction site than rust-brown and dark grey. Easier to find. Remember how our proverbial Man abhors having to exert himself.

Step 9: Proceed to Pretend to Work.

Well there you have it. Laziness prevails.

Take that, apparent discord between natural law and anatomical limitations! No longer shall we be slaves to the marginal inconveniences you impose upon us! We emerge victorious, conquering in the name of Ease and Comfort, our most revered virtues.

Furthermore, we claim this victory as a strategic stepping stone to a larger conquest - that of defeating our enemies of Sun and Rain, who tyrannically beat down upon us and afflict us with such discomforts as sweat and a compromised immune system. And we will again use our same tactics - employing the laws and systems of the physical environment to construct Shields against these foes. We shall be victorious. We will not stop until until we are tired and/or don't feel like working anymore.

Comments

author
rush_elixir made it! (author)2015-08-20

awesome work dude...can i copy the design but credits to you :) This will make my work on the construction yard much better with no hand bruises

author
nexsad made it! (author)2014-01-25

Thanks for sharing.

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JourPT made it! (author)2013-11-26

A really nice idea, may use it without the soldering.

author
MAF405 made it! (author)2013-10-09

very niece idea .

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overblast made it! (author)2013-10-04

Is that the MOM Corp Bending Unit at work in the top photo?????

author
chuckr44 made it! (author)2013-09-25

My rebar broke when I bent it, what happened? I think I used thicker rebar than you did.

author
piperskeeper made it! (author)2013-08-08

Great design - and excellent descriptions. I want this for my birthday!
(I hate moving cinderblocks.)

author
agguilar made it! (author)2013-07-15

Thanks for sharing!!!

author
dougbyte made it! (author)2013-07-10

Very good idea. Thanks for sharing.

author
sharpstick made it! (author)2013-07-10

Great idea! I usually just grab them by hand. Messes up my hands if I'm too lazy to go find some gloves.
A few comments:
1. If you don't have a welder, fasten a spacer a couple inches below the handles to spread the bars. A block of wood or even foam rubber fastened with tie wraps, duct tape . . .
2. It seems like a bit of an upturn on the end of the bottom part would help keep the blocks from slipping loose, but I guess friction is adequate.
3. A U-shaped spreader at the handle level would hold them apart so you don't have to spend as much energy holding them out (from banging into your knees).
4. This could also hold the blocks horizontally instead of vertically, but I haven't decided if this would help or not.

author
thinkthank made it! (author)2013-07-08

Great idea

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Eh Lie Us! made it! (author)2013-07-08

Shields against these foes? I can dig it!

author
cw87 made it! (author)2013-07-08

love it! what a great idea. Would garden trowels work?

author
criggie made it! (author)2013-07-08

Trick - get the pallet of blocks off-loaded and delivered as close as possible to where you want them.

author
paul29690 made it! (author)2013-07-07

Excellent Instructable, I will be making these tomorrow, have all the materials to hand, mainly cos I'm super lazy and would rather buy double everything I need for a project and so always have some materials to play with without having to go out and expend energy twice! I loved your witty step instructions, more of the same please.

author
lime3D made it! (author)2013-07-07

I like it. I like working with rebar for a variety of projects, so the next time I'm making something, I'll make a set of these, just to keep on hand. Thanks.

author
dowdymp made it! (author)2013-07-07

Thanks a bunch! I'm actually an Architect-in-training, and these were for a mission trip to the Dominican Republic that our church takes every year. I made 6 altogether for our group, and the total weight came out to about 10lbs, so they're manageable for putting in a checked bag.

I'm totally a fan of EWB! Thanks for helping in Nicaragua - hope everything goes great! (By the way, the neat thing about these is even the manly men in our group liked to use them because they make you feel like you have awesome metal hook hands.)

author
wolfgang64 made it! (author)2013-07-07

It's Sunday and I'm off. I saw this and just smiled, went out to my workshop and made set. My guys are going to love these! The only change I made was I put about a 10 degree up hook on the very end of the cinder block side. Great idea, thank you.

author
billfarr made it! (author)2013-07-07

You are soooo right about inventiveness. Nature is the Mother of invention but a LAZY man was/is the Father. Great text and a great idea. I have to move 3-4 blocks every time I use my boat and just went out and built my carrier.
Oh yeah! I live in Fl so I use my boat a lot and those blocks aren't getting any lighter:-).
Billfarr

author
chuckyd made it! (author)2013-07-07

Just grab the block on the wide side at the end. No torque involved, and the wide side increases the gripping power, without the added weight of the device.

author
darinthewoods made it! (author)2013-07-07

Interesting, informative and entertaining. Wish I would have had one of these yesterday as I was carting blocks from my car to the patio. But, I will have one next time! THANKS!!

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hazlett made it! (author)2013-07-07

Cinder blocks have not been made, in the US, in many years.

author
lbrewer42 made it! (author)2013-07-07

Its nice to see someone else who likes to cheat physics - GREAT job. People who have never moved much block at a time are the ones who likely do not understand the benefit these tools bring. There were many times I could have used these in the past. But If I doing this type of work anymore I think I'd design one to carry two blocks for each hand when moving the lighter weight ones.

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KemikalzAreFun made it! (author)2013-07-04

If ya got gloves.. You don't need those things :P

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Spokehedz made it! (author)Spokehedz2013-07-07

As someone who has worked with these (concrete blocks) for a few years (basement waterproofing/rebuilding) I can say that this is--without a doubt--better than the ones we used to use. It is cheaper, it is way less complicated, and we could make them on site if they break. I will be sending this to my buddies still in the trade.

author
finton made it! (author)finton2013-07-05

Yeah, but you missed the bits about not "torqu(ing) up your wrist and elbows" and "offsetting the block's loading axis from its center to the edge". This tool allows your arms to hang in a natural position, and takes the stress off your fingertips. The last two pictures show carrying with gloves and without, so clearly, if ya got those things... you don't need gloves. :P ;]

author
brknfngr made it! (author)brknfngr2013-07-04

Bricks/concrete eat up gloves very fast. Gets expensive.

author
askjerry made it! (author)2013-07-07

I have to agree with cdellam below... I really like your writing style and the borders and shadows on the images. The whole instructable has a really good feel to it. Nice job! I spent a summer in my youth working at a job site building fire walls... hauling those up three or four flights of steps every day for a few weeks. These would have been great to have had back then!

Thanks,
Jerry

author
cdellam made it! (author)2013-07-07

One other benefit you didn't mention, is the saving of wear and tear on your skin. CMU's are notorious for sucking every bit of moisture from your skin, and turning your hands into 80 grit sand paper. Excellent Instructable! for an excellent tool!
P.S. I like your writing style! LOL

author
armstk180 made it! (author)2013-07-04

Excellent , very good idea !
but dowdymp what you have for the block without any hole?
you know , because new block are very light and without hole

author
dowdymp made it! (author)dowdymp2013-07-06

Hey thanks! Good question. Before the hook/fork scheme I debated using something similar to what's available on the market:

http://www.bontool.com/product1.asp?P=B21-468

These are really clever devices that use leverage and friction to employ the block's own weight as their gripping mechanism. I just didn't want to spring for $20 a pop for the cheap ones, let alone the $70 deluxe models. Also, knowing that we'd be working with cored block, I didn't want to spend hours in the garage trying to fabricate some pivot/hinge mechanism using inadequate material and equipment when a dumb bent piece of metal would do the job.

But for solid blocks (like landscape blocks, caps, etc.) I'm sure it wouldn't be outside the realm of possibility to create a similar carrier by selectively bending and flattening a couple pieces of EMT conduit, hitting 'em with a drill and throwing a bolt in for a pivot. Or whatever. Surely there are better methods and way smarter people than me around... kinda why I love this website.

B21-468_0.JPG
author
Stone_UFO made it! (author)2013-07-06

Be a man! haha jk, cool idea! This would work great for full 3/4 ply wall forms for concrete. Those things torques your wrist( with out the stupid winds of southern sask throwing the thing around on you)

author
Wyle_E made it! (author)2013-07-05

If you don't have a welder, a spacer (such as a bit of pvc pipe), held in with zip ties or baling wire, will hold the legs apart.

author
caesarcaesar made it! (author)2013-07-05

Great writing!

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onemoroni1 made it! (author)2013-07-05

Anything to make the job easier. Work smarter, not harder. Good instructable.

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MECHGYVER51 made it! (author)2013-07-05

Man, I am going to save the text so I can go back and get additional grins from the narrative! Very well done.

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firedancer57 made it! (author)2013-07-04

Wonderfully creative and the narrative entertaining and well just makes me want to follow you, oh that sounded like stalking... Love it. Thank you.

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jerickm made it! (author)2013-07-04

Great idea and even more brilliant delivery. Thank you!!!

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bobzjr made it! (author)2013-07-04

Great idea for carrying blocks. I really need to pickup welding. I'm missing too much fun.

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JordanMichaelButler made it! (author)2013-07-04

I like the Futurama reference with Mom Corp. well done:)

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klimin made it! (author)2013-07-04

mantab friend

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HrdWodFlor made it! (author)2013-07-03

I have never had so much fun reading an Instructible before. Great job and great idea.

author
CaseyCase made it! (author)2013-07-03

Man... I am floored by the sheer practicality and entertainment value of this Instructable. Love it!

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