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SGT Rock
2012-12-20, 13:44
So this storm blew over one of the trees I use when trying new hammock ideas. Instead of waiting 10 years for a new one to grow in the same place, I figure I'll build a hammock lab in the back yard.

My thought is that they ought to be round, sort of like trees are. That I am going to need them to be about 6' tall above ground, and they will probably need 3'-4' under ground with cement to hold them in place solidly enough to hold a hammock properly. They should be about 15' apart.

I just checked the online inventory of the local hardware places like Lowes and Home Depot and the closest thing I could find is this: http://www.lowes.com/pd_202781-432-RP48T40N_0__?productId=3173193&Ntt=wood+post&pl=1&currentURL=%3FNtt%3Dwood%2Bpost&facetInfo=

I know some of you out there are smarter than me, so throw me some bones here.

sheepdog
2012-12-20, 13:54
go to a utility company and see if you can get a deal on some old utility poles. One cut in half should do it.

SGT Rock
2012-12-20, 13:55
go to a utility company and see if you can get a deal on some old utility poles. One cut in half should do it.

Not a bad idea.

Lugnut
2012-12-20, 14:03
If it doesn't have to be round Lowe's has 12 foot 4x4 posts.

SGT Rock
2012-12-20, 14:07
Round is greatly preferred. Tree straps don't do as well around square posts.

SGT Rock
2012-12-20, 14:20
I found a diagram for footing detail on decks. I think this is probably overkill, but overkill could be a good thing in this application.4585

So if I follow this I could use 8' posts and that would put 26" of the post under ground and 70" of the post above ground which would be 5'10", I think I could live with that.

It looks like each hole would need: one post, about 4 rebar pins, about 3 bags of concrete (wild guess there), and about 18" of copper flashing.

If I did three posts where the posts were at right angles and the short sides were 12' apart from the corner, then across the long side it would be about 17'. That would give me two short hangs and one long in the back yard for testing stuff.

SGT Rock
2012-12-20, 14:21
Anyone have a good link for calculating home much concrete I will need?

Cuffs
2012-12-20, 14:23
I was going to suggest pilings, they're everywhere here, but they are usually no less than 8" diameter and heavy as hell. Same as was suggested for the phone poles...

Lugnut
2012-12-20, 14:33
Round is greatly preferred. Tree straps don't do as well around square posts.

Since you already live in Tennessee anyway you could just wrap tire casings around them. :ahhhhh:

SGT Rock
2012-12-20, 14:36
http://www.quikrete.com/Calculator/Main.asp#concrete

A 4" x 4" post will require a 12" diameter hole and five 50 pound bags of cement.

SGT Rock
2012-12-20, 14:39
I can rent a two man auger from Home Depot. Beats digging with a post hole digger. http://homedepotrents.com/diyTools/auger2man.asp?cm_sp=tool_rental-_-left_nav-_-two_man_hole_digger

Cuffs
2012-12-20, 14:47
We just set the post for our new deck, the auger rental is SOOOO worth it! Keep your receipt for the concrete. we bought what was estimated and it was 4 bags too many, took em back...

SGT Rock
2012-12-20, 14:51
We just set the post for our new deck, the auger rental is SOOOO worth it! Keep your receipt for the concrete. we bought what was estimated and it was 4 bags too many, took em back...
I'm thinking the same thing. When I did it using long math I came out with less bags than the calculator said.

BTW, how much was the rental?

Skidsteer
2012-12-20, 14:54
Rock, lowes and Home Depot generally have a concrete estimator chart posted near the concrete.

Cuffs
2012-12-20, 15:14
we did the 1-person, and I think it was $30-40 for 1/2 a day? Im probably wrong, Yak did it. It does have a $50 deposit. Dont forget to use your Mil Discount on it!

SGT Rock
2012-12-20, 15:33
we did the 1-person, and I think it was $30-40 for 1/2 a day? Im probably wrong, Yak did it. It does have a $50 deposit. Dont forget to use your Mil Discount on it!

Perfect. Thanks!

D'Artagnan
2012-12-20, 16:11
Don't you have two sons at home? :-)

SGT Rock
2012-12-20, 16:15
Don't you have two sons at home? :-)

Yes, but I don't want it to take a week to dig three holes.

Ray
2012-12-20, 17:45
we did the 1-person, and I think it was $30-40 for 1/2 a day? Im probably wrong, Yak did it. It does have a $50 deposit. Dont forget to use your Mil Discount on it!So you needed that auger to get down below the frost line depth?

Cuffs
2012-12-20, 17:46
yessir!! and less than a whole bag of crete for each one...

Its more to hold it TO the ground that keeping it above freezing. These darned hurricane winds, I tell ya!

Kanga
2012-12-20, 18:30
come down here and get one of these huge cedars i cut down last year. one cut in half will make you two big poles.

Skidsteer
2012-12-20, 19:23
Yes, but I don't want it to take a week to dig three holes.

Too bad the tree didn't fall down before the Christmas party. I would have loaned you my one-man augur for as long as you needed.

Kanga
2012-12-20, 19:56
um, can i use that?

Skidsteer
2012-12-20, 20:04
um, can i use that?

Anytime you want.

JAK
2012-12-20, 20:47
Couldn't you just use some fallen trees, and back fill with 1/4 minus gravel instead of concrete?

Skidsteer
2012-12-20, 20:51
Couldn't you just use some fallen trees, and back fill with 1/4 minus gravel instead of concrete?

Yeah if you don't mind landing on your ass with no warning.

Kanga
2012-12-20, 21:45
Anytime you want.

This weekend?

Skidsteer
2012-12-20, 21:53
This weekend?

Sure. Have your people call my people.

Skidsteer
2012-12-20, 21:55
Who am I kidding? We are each other's people. Just call me later.

Superman
2012-12-20, 22:15
Who am I kidding? We are each other's people. Just call me later.

That's so sweet.:angel:

Hog On Ice
2012-12-20, 22:23
hey skids - no ummmm heavy lifting you hear

Skidsteer
2012-12-20, 22:34
Y'all are retarded.

saimyoji
2012-12-20, 23:22
Who am I kidding? We are each other's people. Just call me later.

getchoo some....yeah baby!

SGT Rock
2012-12-21, 04:32
So you needed that auger to get down below the frost line depth?

I have no idea how deep the frost line is here.

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D'Artagnan
2012-12-21, 09:32
I have no idea how deep the frost line is here.

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Probably around 18 inches.

Hog On Ice
2012-12-21, 09:46
that's what she said

Big Mac
2012-12-21, 10:14
+1/2 for HOI. That curveball was just hanging out there.

john pickett
2012-12-21, 11:36
Don't know about frostlines, but it's getting deeper and deeper.

Cuffs
2012-12-21, 11:43
I have no idea how deep the frost line is here.


http://www.decks.com/deckbuilding/Deck_Footing_Frost_Depth_Map

Hog On Ice
2012-12-21, 13:12
a good link to figure out the extreme penetration distance

Rosaleen
2012-12-21, 15:49
SGT Rock-

I'm NOT smarter than you, but have you received input from DixieCritter? The first thing that came to mind was some sort of a swingset frame that could serve as you hammock lab part of the time, then be converted to swing set use when the grandkids visit. It might even work for a swing seat that your adult family can use when not in hammock-mode.

Other options, a reinforced hook betgween the house and one pillar of a nice back porch roof.

Multi-use isn't just for the trail...

Rosaleen

Nearly Normal
2012-12-21, 19:03
This one man auger.......doesn't like rocks...roots... shit like that...least ways that's what my buddy told me when I ask him about the cast.

Lugnut
2012-12-21, 19:23
Mine has a shear pin. It's never sheared either because I didn't hang it up bad enough or it's been replaced with one that's too stout because it has jerked my arms out of their socket a couple times.

Skidsteer
2012-12-21, 19:36
This one man auger.......doesn't like rocks...roots... shit like that...least ways that's what my buddy told me when I ask him about the cast.

Your buddy is right. It will jerk a knot in your tail if you lose concentration.

Kanga
2012-12-21, 19:38
This one man auger.......doesn't like rocks...roots... shit like that...least ways that's what my buddy told me when I ask him about the cast.

no rocks, roots, or shit in the way where i need to dig. i might just go get it this weekend and then let you do it for me next week. so i don't hurt myself, see. i will supervise.

Nearly Normal
2012-12-21, 20:02
You want I should paint the barn and dig a well too?
I take you fishing and you got me stringin fence...Oh hell no!
Skids......don't you lend her that damn hole digger till after the 1st!

Skidsteer
2012-12-21, 20:06
You want I should paint the barn and dig a well too?
I take you fishing and you got me stringin fence...Oh hell no!
Skids......don't you lend her that damn hole digger till after the 1st!

You may as well bring your leather gloves brother.

SGT Rock
2012-12-21, 20:08
SGT Rock-

I'm NOT smarter than you, but have you received input from DixieCritter? The first thing that came to mind was some sort of a swingset frame that could serve as you hammock lab part of the time, then be converted to swing set use when the grandkids visit. It might even work for a swing seat that your adult family can use when not in hammock-mode.

Other options, a reinforced hook betgween the house and one pillar of a nice back porch roof.

Multi-use isn't just for the trail...

RosaleenShe has already tentatively blessed the project.

SGT Rock
2012-12-21, 20:09
http://www.decks.com/deckbuilding/Deck_Footing_Frost_Depth_Map

Looks like I am on the 20" line. That works with the plans I have sketched out.

Cuffs
2012-12-21, 20:51
You want I should paint the barn and dig a well too?
I take you fishing and you got me stringin fence...Oh hell no!
Skids......don't you lend her that damn hole digger till after the 1st!

I went to see her in the spring and that's all we did. Take down fence, string up fence... ;)

SGT Rock
2012-12-21, 21:15
I made a slight change to the plans. If I do a right angle from one pole in the corner, and make one leg 12', the other 14', then my long leg will be ~18.5'. That gives me three different hang lengths to chose from when toying around.

Hog On Ice
2012-12-21, 21:38
18.5 feet huh - that's even enough for the portable garage tarp

SGT Rock
2012-12-21, 21:40
18.5 feet huh - that's even enough for the portable garage tarp

I know. Gotta have room for company.

Nearly Normal
2012-12-21, 21:42
I went to see her in the spring and that's all we did. Take down fence, string up fence... ;)

Ha...

saimyoji
2012-12-21, 21:49
I went to see her in the spring and that's all we did. Take down fence, string up fence... ;)

is "fence" code for unnerpants?

Cwciwatch
2012-12-22, 09:27
is "fence" code for unnerpants?

Lol, that's funny! :)

SGT Rock
2012-12-25, 16:31
These might do the trick http://www.tractorsupply.com/cca-pressure-treated-wood-post-6-in-x-8-ft--4041105

SGT Rock
2012-12-25, 16:45
Sketch of what I plan to do.

SGT Rock
2012-12-25, 20:18
Getting ready to start on this tomorrow. Wish me luck.

sheepdog
2012-12-25, 20:30
Luck

john pickett
2012-12-26, 12:52
Not just luck, Good luck.

Bearpaw
2012-12-26, 14:38
These might do the trick http://www.tractorsupply.com/cca-pressure-treated-wood-post-6-in-x-8-ft--4041105


Sketch of what I plan to do.

Your main problem with the posts is they are only 8 feet tall. You could sink them 2 feet deep and have a reasonably stable 6 ft post, but I doubt 6 ft will be high enough to post the tree hugger when you are hanging 18.5 feet apart. When my trees are that far apart, I have to wrap the huggers well above my head or my hammock just about touches the ground. That's both with polypropylene webbing and amsteel whoopies.

SGT Rock
2012-12-26, 17:03
Your main problem with the posts is they are only 8 feet tall. You could sink them 2 feet deep and have a reasonably stable 6 ft post, but I doubt 6 ft will be high enough to post the tree hugger when you are hanging 18.5 feet apart. When my trees are that far apart, I have to wrap the huggers well above my head or my hammock just about touches the ground. That's both with polypropylene webbing and amsteel whoopies.
Good point on that. I didn't think of that point. I've got the holes for the privacy fence bored in, the holes for the posts are not going as easy, probably because getting the auger down to 3' isn't going so hot. I think if I hit base rock then that will just have to do, and that will give me more height.

Lowes is delivering my 21 80# bags of quickcreet and 32' of fence tomorrow, so I wanna get the holes bored in today if possible. I think if I do not get down to 36", as long as I have a good base of creet and rebar in to hold us vertical it should be OK.

SGT Rock
2012-12-26, 17:50
Just finished boring the last holes. At just over 24" I'm hitting water table. I guess that will happen when you live next to a creek.

SGT Rock
2012-12-27, 15:53
Posts for the privacy fence are in and setting. We are taking a break before we move to setting the bases for the hammock "trees". We have poured about 700 pounds of creet at this point.

Hog On Ice
2012-12-27, 16:15
rent a mixer or doing it by hand?

SGT Rock
2012-12-27, 17:32
By hand. Builds character in boys.

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Hog On Ice
2012-12-27, 17:44
bet there are some new blisters and sore muscles

SGT Rock
2012-12-27, 17:47
Yes. We put ~1200 pounds of cement in the ground today.

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Lugnut
2012-12-27, 17:48
That's a lot of character!

SGT Rock
2012-12-27, 17:57
I've still got nine 80# bags left, and some more mixing and pouring to do tomorrow. I'll probably end up with some left over.

SGT Rock
2012-12-28, 20:06
Got 'R Done today. At about 1100 we finished putting up the privacy fence and burned the scrap wood. The cement on the hammock posts still needs time to set and cure, I figure about a week before I hang anything off them.

http://hikinghq.net/images/hammock_lab/DSCF2479.JPG
Me and the auger.

http://hikinghq.net/images/hammock_lab/DSCF2480.JPG
Me and Deadman Walking working to clear around the hole. Skeeter in the background.

http://hikinghq.net/images/hammock_lab/DSCF2481.JPG
http://hikinghq.net/images/hammock_lab/DSCF2482.JPG
Me and Deadman working a hole while Skeeter clears one out.

http://hikinghq.net/images/hammock_lab/DSCF2484.JPG
http://hikinghq.net/images/hammock_lab/DSCF2485.JPG
Getting the privacy posts poured.

http://hikinghq.net/images/hammock_lab/DSCF2486.JPG
http://hikinghq.net/images/hammock_lab/DSCF2487.JPG
Installing flashing around the bases.

http://hikinghq.net/images/hammock_lab/DSCF2488.JPG
http://hikinghq.net/images/hammock_lab/DSCF2489.JPG
http://hikinghq.net/images/hammock_lab/DSCF2490.JPG
Mixing cement.

http://hikinghq.net/images/hammock_lab/DSCF2491.JPG
http://hikinghq.net/images/hammock_lab/DSCF2493.JPG
Finished and preparing for the inaugural fire.

Hog On Ice
2012-12-28, 20:12
dang - Skeeter sure has grown some since the last I saw him

SGT Rock
2012-12-28, 20:13
He is about 5'4", but weighs less than an 80 pound bag of cement.

SGT Rock
2012-12-28, 20:51
Oh, and I was over by four 80# bags. But the new front porch is next, so they will not go to waste. We've been saving for 2 years to get the porch done. I think she let me build this to keep the hammocks OFF the front porch.

dixicritter
2012-12-28, 21:06
Oh, and I was over by four 80# bags. But the new front porch is next, so they will not go to waste. We've been saving for 2 years to get the porch done. I think she let me build this to keep the hammocks OFF the front porch.

You figured it out huh? LOL

D'Artagnan
2012-12-28, 21:15
I'm sure you know this already, but don't forget to include expansion joints when you pour the porch. The folks who did mine several years before I bought my house didn't include them and it ended up creating its own.

SGT Rock
2012-12-28, 21:19
Ouch. We're using a contractor on ours.

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john pickett
2012-12-29, 12:35
You married a smart girl, sir.

SGT Rock
2012-12-29, 12:43
Pretty much.

Bearpaw
2012-12-29, 13:01
How deep did you bury those Rock? They look to be about 7 feet high, so maybe they are a foot under?

SGT Rock
2012-12-29, 13:15
Each one is a little different based on ground conditions, and each part of the yard is at a slightly different elevation, and the picture perspective is a little off at that angle....

First let me say when I did this I consider the 12" base of cement attached by re-bar to be part of the structure. These are 8' poles (tallest I could get) and with a 1' base attached under it, that makes it 9'. I was told you want 1/3 underground, so 3' (2'+1') is what I was shooting for. The rebar connections were supposed to extend up from the base 12" by at least 5" and were supposed to be about 12" long. But I went with 2' pins so I could drive them down into the rock layer under the base for a little extra support.

The center one is 5'10" tall, I hit stone and couldn't get the hole any deeper than about 28", so I hammered the re-bar pins in with a sledge until they were in about 1' into the rocks. The base on it is not a full 12" either, I poured about 1/2 bag for the base on it and set the pole. I was a little off, so I lost 2" on it.

The left pole as you are looking at it (the one I am next to in the last pic) hit water at 24" and rock at about 36" I had to pour the dry cement into the water filling the hole and mix it in place. I ended up with about 1.5 bags of cement and a little more base than I wanted as I tried to get the mix from being too wet. That pole ended up being about 6'2" if I remember correctly, but has a bunch of cement base and some well placed pins so I am not worried about it (much). I'll try not to hang high on it unless I absolutely have too.

The right pole as you are looking came out as planned. I also hit water at 24" but got down to my planned 36" and mixed dry cement in the hole which ended up wider at the base as I was cleaning out the dirt and the water would cause some sidewall collapse. The base is a 12" base about 16" wide and narrower to the top to 12". The pole is 2' down with 6' above the ground. It is the one I think came out closest to what I planned.

Ray
2012-12-29, 16:01
Your idea of hanging the hammock directly over a fire pit, as shown in the photo, is genius!

That would eliminate the need for an underquilt. But isn't asbestos fabric a little hard to find these days?

SGT Rock
2012-12-29, 16:26
I know. I'm a genius like that. You can also pop popcorn in your pockets.

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Elder
2012-12-29, 16:52
pop popcorn in your pockets.

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Is that what you call it now?

Hog On Ice
2012-12-29, 17:07
+1 for Elder

john pickett
2012-12-29, 21:18
Hahaha!

Cuffs
2012-12-29, 21:55
I just saw 12' pt 4x4 at Lowes. I wonder how well that will work for hammock posts...

SGT Rock
2012-12-29, 22:13
Maybe. I read a guy at HF broke a 4x4 using it for hammocks.

Cuffs
2012-12-29, 22:18
I looked for the 6x6 but didn't see it in the 12' length.

SGT Rock
2012-12-29, 22:24
Anything that big I couldn't find except in 8' lengths. I did find a listing at Lowes for 6x6 round treated but they were not in stock and I couldn't find them in-stock anywhere. A couple of days later that listing disappeared from Lowes site. The only place I could find round posts that size was Tractor Supply and that was at 8'. When I went there they had 6" round posts and 5" round posts. After mulling them over I went with 5" round posts because they look like the size of trees I normally look for and it would likely work slightly better with holes drilled by a 12" auger. Anyhow, I am sure there is a co-op or something in your area that caters to the farmers of La. Check there.

SGT Rock
2013-04-03, 08:58
Bump

Rosaleen
2013-04-03, 09:36
Guys-

Try checking with your local utility companies to see what they do with the old utility poles when they are replaced. Our local Scout Camp used some for fencing. The utility company cut them to smaller lengths, maybe 6-8 feet, ensuring the poles couldn't be used to climb high enough for someone to get stupid and be seriously hurt falling from one, then go sue the utility. The cut down poles might be worked into a hammock stand with some creativity.

aardvark
2013-04-04, 22:37
You can always try a turtledog stand from the other website, it gives you a level of adjustability and portability that is pretty nice. Sub 30 dollars also

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Cuffs
2013-04-04, 23:04
Guys-

Try checking with your local utility companies to see what they do with the old utility poles when they are replaced. Our local Scout Camp used some for fencing. The utility company cut them to smaller lengths, maybe 6-8 feet, ensuring the poles couldn't be used to climb high enough for someone to get stupid and be seriously hurt falling from one, then go sue the utility. The cut down poles might be worked into a hammock stand with some creativity.

I've seen used utility poles. There's are reason they have been replaced and are being tossed...

sheepdog
2013-04-04, 23:51
They usually replace them because they rot at the ground. There are usually good sections if you don't need the full length.

Cuffs
2013-05-29, 23:56
All righty. Here's what we got.

3 PT piling cutoffs from a construction site. 10 feet each. 8" dia. Round.

We have metal store-bought hammock stands that I got free off Craigslist. Based on their measurements, the posts will be 170" apart and the screw eyes for the hammocks will be about shoulder high (on me. 5'-ish)

I say the posts should be set around 30-36" deep. Per Yak and his engineering smarty pants degree, he says the rebar in there will not help torsional forces. Do we're eliminating them.
Is 3' still sufficient?
Rock, you've had yours a bit now, what do you think?

SGT Rock
2013-05-30, 12:22
It sounds like a good solution. How big are the holes going to be around and how much concrete per base?

Cuffs
2013-05-30, 13:29
I dug one yesterday down to 2feet with a shovel. Hit clay. Will dig the other two the same, then just get the auger to finish off the depth. IIRC the hole I started is 20" at ground level. Tapering towards the bottom. Dont know how much concrete yet... I will be adding flashing around the posts at ground level.

SGT Rock
2013-05-30, 14:01
I think it was about four #80 bags per hole on mine if I recall correctly. It's been a while.

Kanga
2013-05-30, 16:01
Jeebus! I only used 4 on my gate post! Overkill

SGT Rock
2013-05-30, 16:56
There can be a lot of force on a hammock. People have been known to rip out walls and such.

Kanga
2013-05-30, 17:05
my 18' foot gate weighs 200 lbs and the fence post/tree is 350 lbs at least. overkill.

Cuffs
2013-05-30, 17:18
But if ya gotta fill the hole... And he only used 4 bags

SGT Rock
2013-05-31, 07:54
Pfft. Whatever. Hang off your pole if you want to. I don't want mine budging. If that means a few sacks of cement, then it was good overkill.

Hog On Ice
2013-05-31, 12:00
my 18' foot gate weighs 200 lbs and the fence post/tree is 350 lbs at least. overkill.

one thing about a gate that is different from a hammock is the location of the force on the pole (ie lever arm) - a gate will generally have some of the force being applied at the lower hinge which is maybe 2 feet off the ground level and the rest of the force being applied at the upper hinge which is maybe 5 feet above ground level whereas the hammock will have all its force being applied at 6 or 7 feet above ground level

SGT Rock
2015-09-09, 20:52
bump