Hanging hoist in garage to hold 220lbs on a TJI joist

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LAWBC
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Hanging hoist in garage to hold 220lbs on a TJI joist

Post by LAWBC » Mon Oct 09, 2017 11:05 am

Bought this electric hoist with a cap. to lift 220lbs.
https://garagegator.com/product/garage- ... el-gg8220/
My garage is below living space with a ceiling height of 11 ft. and the span on the TJI joist is 16 ft on 16 inch centers.
My question is should I be looking to open the ceiling and bracing across the joists or could I screw up through the drywall into the 2x3 bottom rim of the joist ?
The pic is where I want to mount it, just before the beam or in front of where I have my bike mounted ( I used lag screws on the bike mount). There is a TV cable which will go but it is shows near the electrical outlet that will supply power for the hoist.
My plan is to mount the plate so as to straddle 2 joist and then run the bar and subsequent the other pulley to the end of one joist.
I emailed Strong Tie if they produce this piece , see below, which might be a reasonable for reinforcing but the engineer looking at my email could not pull up You Tube ( go figure) and wants a pic of it . Anyone know of this brace in the market ?
https://youtu.be/T24waTvxLmQ?t=12m31s
Thank you
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A. Spruce
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Re: Hanging hoist in garage to hold 220lbs on a TJI joist

Post by A. Spruce » Mon Oct 09, 2017 11:50 am

I think I would contact a TJI joist manufacturer and ask them if hanging a bike off the bottom cord of a joist would cause any problems. I, personally, can't see why it would, that bike probably weighs less than 75 pounds and the weight will be spread across at least two fastening points, however, I have never used TJI joists, so I cannot comment on how any additional stress applied to a point not designed for that stress will affect the joist.

The bracketry in the video is absolutely something you could construct yourself, should you choose to open up the drywall. It's a great idea on how to have the entire joist carry the load, rather than the bottom cord alone.

Want to build that bracket yourself? Cut the plywood as described in the video, cut two 2x4 blocks to fit between the plywood and joist bay. Nail or screw the 2x4s at the bottom edge of the plywood aligned with the hoist attachment holes. Install the bracket by nailing or screwing through the plywood into the top and bottom cords of the joist. Patch the drywall, paint, and hang your hoist.
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Shannon
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Re: Hanging hoist in garage to hold 220lbs on a TJI joist

Post by Shannon » Mon Oct 09, 2017 7:05 pm

I personally think you should have no problems with the tgi holding the weight but that is just my opinion. As mentioned using the top of them would be better and you could design that on your own
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Aaron
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Re: Hanging hoist in garage to hold 220lbs on a TJI joist

Post by Aaron » Mon Oct 09, 2017 7:25 pm

I would just screw on a small sheet of plywood over the drywall and bolt it into two joists with 2" deck screws. Then put the clamp between the the joists so the load is distributed between the two joists. Paint the plywood white or whatever. That seems like it would be easiest thing.

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Re: Hanging hoist in garage to hold 220lbs on a TJI joist

Post by Admin » Tue Oct 10, 2017 12:43 am

I have owned that exact Garage Gator for like 5 years or more. It's super handy for bikes, golf clubs, etc.

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Re: Hanging hoist in garage to hold 220lbs on a TJI joist

Post by Shannon » Tue Oct 10, 2017 8:23 am

Admin wrote:
Tue Oct 10, 2017 12:43 am
I have owned that exact Garage Gator for like 5 years or more. It's super handy for bikes, golf clubs, etc.

Your gator is suspended form two different trusses bolted into the bottom cords and not a TGI . TGI should hold more weight .IMO
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Re: Hanging hoist in garage to hold 220lbs on a TJI joist

Post by Admin » Tue Oct 10, 2017 8:57 am

I don’t know what TJI/TGI is so I didn’t comment on the mounting ;)

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A. Spruce
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Re: Hanging hoist in garage to hold 220lbs on a TJI joist

Post by A. Spruce » Tue Oct 10, 2017 11:34 am

Admin wrote:
Tue Oct 10, 2017 8:57 am
I don’t know what TJI/TGI is so I didn’t comment on the mounting ;)
They are an engineered joist, made out of plywood or OSB. I'm not a fan because they've got a whole lot more spring/bounce to them than lumber, but they can span more, so . . .
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Re: Hanging hoist in garage to hold 220lbs on a TJI joist

Post by DanM » Tue Oct 10, 2017 7:20 pm

You can hang that off a pair of TGI joists with 100% certainty, they can easily handle the load. Just don't go too big on the screws, Bracket thickness + 1/2" (or 5/8") for the drywall thickness + the thickness of the bottom of the joist (can't tell from the pics which orientation the 2x3 parts are. If the long side is vertical add 2.5", if it's horizontal add 1.5").

Also stick to regular screws, something good for exterior use (deck screws or galvanized). Don't use lag screws they're too big and there's too high of a chance they'll split/crack/break the 2x3. All the tension and compression is handled by the 2x3's, and if you compromise them the joist isn't good anymore. Your ceiling won't collapse or anything catastrophic like that, but it would likely mean you'd need to replace or sister up the joist to support it which needless to say would be a major pain in the arse and the wallet.

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Re: Hanging hoist in garage to hold 220lbs on a TJI joist

Post by LAWBC » Fri Oct 13, 2017 1:21 pm

Got the info, you guys that weighted in were right, yes you can and here is the
the doc that proves it. Just waiting on the builder to give me the series number for the TJI, although for what I have it appears I have a lot of margin with the 230 series and up.
https://www.weyerhaeuser.com/woodproduc ... ail/tb-808

Also I have had good success with these kind of joist, they do not sag or deflect in anyway, very happy with this kind of framing construction.

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Re: Hanging hoist in garage to hold 220lbs on a TJI joist

Post by A. Spruce » Fri Oct 13, 2017 1:29 pm

Thanks for the update and the link. 8-)
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