Unloaded/Tare weight of trucks...roll-off 2/3 axle, tractor w/ or w/o cab

TruckinHard · Jul 14, 2013

Anybody know where to find a good list or know unloaded weights of certain trucks:

Mack or Kenworth T800 dual-axle or triaxle roll-off trucks
Cab over dual-axle roll-off trucks...any different than above? These look like refuse/garbage trucks but are roll-off

Various conventional tractors...single or dual axle, day cab and ones with sleepers?
How much do you expect them to vary from older to newer or from different manufacturers...not too much?

TruckinHard · Jul 14, 2013

Tare weights of trailers are so much easier to find, but the trucks that pull them is a different story

Tradesman · Jul 14, 2013

I have always wondered but never been able to find out what "tare" stands for, I assume its an acronym but what for. As for your tare wieght can you run your equipment over a scale.

norite · Jul 14, 2013

Tradesman said:
I have always wondered but never been able to find out what "tare" stands for, I assume its an acronym but what for. As for your tare wieght can you run your equipment over a scale.

Tare is the unloaded/empty weight of the truck. tare wt = gross wt - load wt

No idea where the word comes from.

wilko · Jul 14, 2013

A quick search came up with:
The word tare originates from the Middle French word tare "wastage in goods, deficiency, imperfection" (15c.), from Italian tara, from Arabic tarah, lit. "thing deducted or rejected," from taraha "to reject"[1]

You won't find a list of light weights for trucks because each truck is different depending on how it was spec'ed from the factory.

Steve Frazier · Jul 14, 2013

Like wilko mentioned, there are so many variables in the manufacture of a truck between engines, transmissions, rears and frame length that it would be tough to list weight for a specific truck, then try to figure out the weight of upfitter pieces on top of that which would vary from different manufacturers. The best thing to do is get the truck on a scale, any bulk material facility should have one.

Tradesman · Jul 14, 2013

wilko said:
A quick search came up with:
The word tare originates from the Middle French word tare "wastage in goods, deficiency, imperfection" (15c.), from Italian tara, from Arabic tarah, lit. "thing deducted or rejected," from taraha "to reject"

Thanks ! I have done numerous searches for an acronym but I never thought of searching it as a word :beatsme

Reel hip · Aug 9, 2013

In the door jam is the GVWR. It also specs out front and rear axle weight capacity. This would give you your tare weight. If you were looking for a specific truck that is used I guess you could call the seller.

Steve Frazier · Aug 9, 2013

The door sticker gives the GVWR or Gross Vehicle Weight Rating as you mention, this means the maximum weight allowed on the vehicle as manufactured including all equipment and payload. The Tare weight is the Gross weight minus the weight of payload, or in other words the weight of the truck plus all mounted upfitter equipment. And again, the only accurate way to determine this is to get the truck on a scale.

I can't believe you'll find a listing of these weights, but if you do your homework on a specific truck by visiting the manufacturers website you may find the approximate weight of the cab & chassis, then you'll have to add the weight of the upfitted part of the roll-off, again based on information from the manufacturer's website. The roll-offs will vary too with the different bodies hauled on back with both length and height.

If I remember correctly, the Mack DM-600 10 wheel dump I drove back in the 80s had a tare weight of around 19,000 pounds.

grandpa · Aug 10, 2013

Tare weight infers to the weight of a truck at a precise moment in time. I have several trucks that are exactly the same and they vary as much as 1000 #'s or so. As you use your truck during a shift the weight will change as fuel decrease's and other variables.

My trucks are weighed on every load on a certified scale accurate to +- 20 pounds. You can't imagine the changes in weight.

Nige · Aug 10, 2013

grandpa said:
Tare weight infers to the weight of a truck at a precise moment in time. I have several trucks that are exactly the same and they vary as much as 1000 #'s or so. As you use your truck during a shift the weight will change as fuel decrease's and other variables.

My trucks are weighed on every load on a certified scale accurate to +- 20 pounds. You can't imagine the changes in weight.

Gramps, the 1000lb could simply be the difference between a full tank of fuel and an almost empty one on most trucks. Every aggregate operation I've ever seen the truck arrives on site and passes over the scales to get the tare weight, passes over them again once loaded to get the gross, and simple arithmetic does the rest ..........

We're planning on a scale study of our haul trucks this coming week. I'm expecting differences in tare weight of anything up to 5 tons across the fleet.

wilko · Aug 10, 2013

A good pressure washing can take off hundreds of pounds certain times of the year.

Nac · Aug 18, 2013

I can tell you that my Volvo VHD triaxle roll off weights 19 tons with a 20cy HD box on it

Nige · Aug 18, 2013

Nige said:
We're planning on a scale study of our haul trucks this coming week. I'm expecting differences in tare weight of anything up to 5 tons across the fleet.

Well I was waaaaaaaaay out. Biggest difference across a fleet of allegedly identical trucks was 11 tons (lowest 146, highest 157) on an average over the fleet of 150 tons empty. Go figure, and this was after correcting for how full the fuel tank was.

JDOFMEMI · Aug 18, 2013

7 percent variance seems like a lot for allegedly like trucks, but then you factor how thick the body liners are from wear, how much mud is built up on the chassis, any material stuck in the corners of the box, and even the tire wear on tires that size is a significant amount.

As for the OP's roll off truck, I have no estimate, as each will be different. I use boxes, and find over 2,000 lbs difference in the tare weight of like sized boxes.

FMD · Aug 19, 2013

TruckinHard said:
Anybody know where to find a good list or know unloaded weights of certain trucks:

Mack or Kenworth T800 dual-axle or triaxle roll-off trucks
Cab over dual-axle roll-off trucks...any different than above? These look like refuse/garbage trucks but are roll-off

Various conventional tractors...single or dual axle, day cab and ones with sleepers?
How much do you expect them to vary from older to newer or from different manufacturers...not too much?

The line sheet will tell you the tare weight. If you dont have the line sheet, call the dealership with with the VIN and they will send you a line sheet for the truck. The tare weight will be figured with a full tank of fuel and the driver. Or like some else mentioned, go to a certified scale and weight the unit.

Just out of curosity, why are you needing the tare weight?

We run the T-800 tri-axle roll-offs straight trucks and semi trucks. Look at the GVWR on the door jam of the straight trucks. They are NOT rated for the 80,000 lb. GVRW. Mine comes in at the 62,000 lb mark.

mitch504 · Aug 19, 2013

The line sheet can't tell you the running tare weight, because the manufacturer doesn't install the body or accessories.

grandpa · Aug 19, 2013

Nige said:
Gramps, the 1000lb could simply be the difference between a full tank of fuel and an almost empty one on most trucks. Every aggregate operation I've ever seen the truck arrives on site and passes over the scales to get the tare weight, passes over them again once loaded to get the gross, and simple arithmetic does the rest ..........

We're planning on a scale study of our haul trucks this coming week. I'm expecting differences in tare weight of anything up to 5 tons across the fleet.

Guess you couldn't imagine the change in weight neither...

FMD · Aug 20, 2013

mitch504 said:
The line sheet can't tell you the running tare weight, because the manufacturer doesn't install the body or accessories.

I purchased 9400 IHC's, T-800 Pacar, 613 Mack's and all of my line sheets shows the unladen weight (tare weight).

So if you send out a truck to have a wet kit installed, of course that will not be on the line ticket. Or if you purchase a T-800 and have a lugger body installed the line sheet wont show the lugger bodies weight. But the unladen weights are on all of the line sheets that I seen from the manufactuer.

cl10473 · Aug 20, 2013

TruckinHard said:
Anybody know where to find a good list or know unloaded weights of certain trucks:

Mack or Kenworth T800 dual-axle or triaxle roll-off trucks
Cab over dual-axle roll-off trucks...any different than above? These look like refuse/garbage trucks but are roll-off

Various conventional tractors...single or dual axle, day cab and ones with sleepers?
How much do you expect them to vary from older to newer or from different manufacturers...not too much?

I would check Truckpaper.com and just look at the various listings by type. New truck listing usually have the weight. If it doesn't you can always call the dealer and get it.
Good luck.

Unloaded/Tare weight of trucks...roll-off 2/3 axle, tractor w/ or w/o cab

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