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Old 07-03-2019, 08:41 AM   #1
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Attaching swingset bolt to sistered beam?


I have 2x10’s that I will be sandwiching together to make a big stiff beam for an adult swing set.

I’m about to put it together, but then I thought “how am I going to attach the bolts for swings into a sistered beam”? Because the boards are mated together, the bolt will want to push those boards apart, if bolted in the middle. And if I bolt to one beam, or the other, you don’t get the full strength - right?
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Old 07-03-2019, 09:13 AM   #2
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Re: Attaching swingset bolt to sistered beam?


Use three so you can screw in the center one. 4 nails every 12 to 16" from both sides and the beam is one.
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Old 07-03-2019, 10:11 AM   #3
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Re: Attaching swingset bolt to sistered beam?


Get a bracket that holds the swing up.

The bracket is U shaped, designed to go over two boards sistered together.

Then the hang down part has a place to hook the swing into, with S hooks.

ED


Well phooey, I went searching for that, but only found this

https://www.ebay.com/itm/JGS-1800-Lb...QAAOSwQP5c2koN

Would this suffice?

Last edited by de-nagorg; 07-03-2019 at 10:20 AM. Reason: Add phooey
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Old 07-03-2019, 11:17 AM   #4
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Re: Attaching swingset bolt to sistered beam?


So, you mean you have a 10" long eyebolt that you want to mount in the center of a twin 2x10 beam ? You could make a couple of pieces 3/16" or 1/4" x 2-1/2" x 6" steel. Drill a clearance hole through the center for the eye-bolt. Maybe just a couple of 1/8" holes for nails to keep it from turning. A few coats of Rustoleum. One plate on the top of the beam and one on the bottom. Pre-drill vertical clearance hole through center of beam. Should be able to find the steel at HD or Lowes.
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Old 07-03-2019, 12:00 PM   #5
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Quote:
Originally Posted by SPS-1 View Post
So, you mean you have a 10" long eyebolt that you want to mount in the center of a twin 2x10 beam ? You could make a couple of pieces 3/16" or 1/4" x 2-1/2" x 6" steel. Drill a clearance hole through the center for the eye-bolt. Maybe just a couple of 1/8" holes for nails to keep it from turning. A few coats of Rustoleum. One plate on the top of the beam and one on the bottom. Pre-drill vertical clearance hole through center of beam. Should be able to find the steel at HD or Lowes.
Good idea. Thanks.

Wasn’t sure if i could use the bolt only.
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Old 07-03-2019, 12:01 PM   #6
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Quote:
Originally Posted by de-nagorg View Post
Get a bracket that holds the swing up.

The bracket is U shaped, designed to go over two boards sistered together.

Then the hang down part has a place to hook the swing into, with S hooks.

ED


Well phooey, I went searching for that, but only found this

https://www.ebay.com/itm/JGS-1800-Lb...QAAOSwQP5c2koN

Would this suffice?

Unfortunately not.

Need a bolt that goes to the top.

Swing may carry up to 300 pounds at times.
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Old 07-03-2019, 12:58 PM   #7
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Re: Attaching swingset bolt to sistered beam?


Quote:
Originally Posted by daquix View Post
Good idea. Thanks.

Wasn’t sure if i could use the bolt only.
If you are doing a glider a 4 point hook is less likely to dump you out.



There are heavier ones like this.

https://cdn11.bigcommerce.com/s-q0zm...739570.jpg?c=2

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Old 07-04-2019, 08:53 AM   #8
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Re: Attaching swingset bolt to sistered beam?


If you go all the way to the top, use a couple of these with a nut and a couple of bigass washers.

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