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Hanging 100lb Heavy Bag from Ceiling 4x6 Tips

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Forum topic by PatrickIrish posted 473 days ago 2432 views 1 time favorited 7 replies Add to Favorites Watch
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PatrickIrish

39 posts in 679 days


473 days ago

I have a 4×6 running left and right in the attic above my garage and want to hand a 100lb heavy bag.

Many use an eye bolt and go through the wood with a nut on top. I was trying to find an 10” eye bolt that was all threaded so I can put a nut and malleable washer on the top and bottom. Well finding an all threaded eye bolt is impossible or they run $30+ online.

Got any ideas?

My dad said to use this with four 3/8×2” lag bolts. I don’t like the idea of lag bolts. Will 4 of them hold a 100lb bag? I feel much more comfortable drilling through the beam with a nut on top.

I was also thinking about using one of these and drilling through the beam and use 8” long bolts with lock nuts.

Lastly, I could just get about 2ft of chain and wrap it around the beam.

My main concern is if lag screws are strong enough. I could use 4” long screws.

Thanks
Rc


7 replies so far

View LokisTyro's profile

LokisTyro

46 posts in 497 days


#1 posted 473 days ago

Do what I do, hold the bag up with one hand and punch with the other :p

Get some structural screws?

-- -Andy ~~~~~~~ http://lumberjocks.com/projects/silent ~~~~~~~

View TopamaxSurvivor's profile

TopamaxSurvivor

14726 posts in 2309 days


#2 posted 472 days ago

Lag bolts should do it, but I’d go with 3” instead of 2”. I hold mine with one hand and punch with the other too. Usually alternate back and forth so one arm doesn’t get a lot bigger than the other.
BTW, you could get all thread and cut it to length. Probably a lot cheaper than bolts long enough.

-- "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

View HorizontalMike's profile

HorizontalMike

6926 posts in 1548 days


#3 posted 472 days ago

I know this should already be understood, but since it has not been mentioned… Make sure you are hanging the ring on the vertical side of the beam. That way all of the weight of the bag is in shear/90* from gravity forces.

FWIW, the first ring looks like the better of the two because it has a better range of movement in than the second, and a welded ring is better for obvious reasons.

BTW, I use 4 of the first rings to hold my observatory dome in place against foul weather, and we have had several storms here in Texas in excess of 70mph winds trying to lift it off of its movable base. My 2-cents…

-- HorizontalMike -- "Woodpeckers understand..."

View Rex B's profile

Rex B

310 posts in 884 days


#4 posted 472 days ago

McMaster Carr is a good source for heavy lift rated eye bolts. Looks like you can get one with 4.5” of thread for about $15.

In my opinion, 100 lb is not that much. I understand the inclination to overbuild things (I do it too), but I think either way would be fine. Lag screws are pretty darn strong in a solid wooden beam.

-- Rex

View Bluepine38's profile

Bluepine38

2876 posts in 1719 days


#5 posted 472 days ago

Second topo’s suggestion of allthread. Use a big washer and nut on top, and put a lifting eye on the bottom.
These should be available at a hardware store, or a fastener-nut & bolt- store near you and are available in
different grades or strengths.

-- As ever, Gus-the 75 yr young apprentice carpenter

View ChuckC's profile

ChuckC

683 posts in 1569 days


#6 posted 472 days ago

Lag screw’s from the box store will be more than enough.

View Mainiac Matt 's profile

Mainiac Matt

3898 posts in 962 days


#7 posted 472 days ago

Just think how tough you’re going to feel when you knock the back off of it’s mount :^)

I second the opinion that four lag bolts in the first (chrome) ring will be plenty strong.

-- Pine is fine, but Oak's no joke!

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