Anyone have photos of how you carry 4x8 sheet goods?

Tell me as shown in post #35 picture in this thread where you are getting a balance point.
One point is at the cab and 2nd is at the tailgate once lifted at any amount. I see no "I" to balance it on or tipping point once lifted even 1/2 inch at the end.
Only 2 points are you lifting it or resting on the gate and the point close to the cab.

 

Post 35 is a short bed. Your "lot of weight on the tailgate" comment was a guy with a long bed. Definitely a good pivot point on a long bed. I'm sure I couldn't lift the end of that much plywood in my 5 foot bed.

 

My short bed wheel wells go all the way to the front of the bed so the sheets only touch two places , top of wheel well at the front of bed and the tailgate .

 

Post 35 you would be correct, guy with osb had a long bed.

 

It could be a 100 foot bed. Doesn't matter. There will be only two points on the load if rested on the tailgate due to the angle created when lifted. Front and back. You lose that balance point once you lift even a half inch. If resting level on the balance point you are lifting half the load or 350 lbs in this case once off that center point.

 

You do not lose the wheel well acting as a fulcrum on a 6 foot bed. If you have a 6 foot bed, you'll just have to try it for yourself. Other explanation, dude is super strong.

 

It’s not a level surface, you don’t lift it off the wheelwells. If I’m lifting it up 1/2” off the tailgate it’s still point loaded on the wheelwells and the front of the bed. Plywood bends, even when stacked like that. There is no where near 350lbs of dead weight on the tailgate or I wouldn’t be able to lift it. Sorry man

 

Ok.

See how it's not resting at the front of the bed? You have a fulcrum point about 20" in.

 

Nice!

 

So 21% (20in/96in) of weight is at the point to the left end, and (76/96) 79% of the weight is on the right end, or 568 lbs when level.
A fulcrum as you show is useful when lifting a heavy load put on the board at the left end in your picture and pushing down on the right (leverage), but helps somewhat buy in no major way lifting the board on the right at only 20 inches.
Halfway would be balanced but we are not near that.
You still have 79% of the weight to start with when starting at level. It doesn't disappear. The weight of the board on the right is useful in the fulcrum mode when lifting a weight on the left, pushing down on the right, but that is not what we are doing here.
Also is the plywood touching exactly all three points when up on the tailgate in the long bed or are you losing the center point and then it's only two ?
In the short bed its two.

 

Plywood touches 2 points, the tailgate and wheel well. You still aren't understanding how a lever works.

Using your logic above, if the wheel well was at 48" then 50% of the weight is on the left and 50% on the right 384lbs each. But you can lift one side of that with almost no effort correct?

When supported by 2 points:

1 @ 0" and 2 @ 96"
Each point supports 384lbs

1 @ 48" and 2 @ 96"
Point 1 supports 768lbs, point 2 0lbs

I don't know the exact math but,
1 @ 20" and 2 @ 96" point 2 must support somewhere between 0 and 384lbs. I'd guess it's about 200lbs, which I think @Thegenerik1 would have no problem lifting 1/2" to drop the tailgate.

 

How many times do I have to say it’s not level! Your math is for a level flat load, you have to account for the angle of the material. I don’t know the math but it’s not linear. The higher you lift the load the less weight you are lifting. At 90 degrees you no longer have any weight as all of it has been transferred to the end on the bottom.

 

I think you have summed your moments backward... (also, rear support is at about 89.5", not 96").

Per my calcs, aft support has about 40% load max. (And even less if the wheel well carries more load over its surface.) Note, sketch and calcs for long bed only. Dimensions estimates only from tacomaworld dimensions.

 

It is 96, that is where you are lifting it. It might rest at that point, 89.5. I was using the endpoint 96 and rough calculation as he said he lifted it. And to start I thought it was a short bed, did not know of the different setup in the long bed.
Still a lot of weight.
Put a 768 lb beam on the ground (16 sheets of this ply) with a 2x4 on edge 20 inches from one end and try to lift it at the long end.

 

I LITERALLY do this at work. At 8' long 20 inches is almost halfway to the balance point. No one is saying it's light but you are NOT lifting 348lbs much less 583lbs.

 

Got it, makes sense for lifting
You do know your 21% and 79% are totally wrong, short bed or long bed, right?

So for picking it up, on a long bed its 37% of the weight.

You have the math backwards it looks like to me

 

Short bed does not have the pivot point like long. On short bed its only at two points. So whats 750 divided by 2 ?

 

Good god you are slow, it’s not that simple. The angle of the load and gravity change things. It’s not 50/50 when the load is sitting at a 30 degree angle. Give up already.

You are not lifting half the load, you are lifting up one end of a load.