Dumpy bag volumes

[WFWales]

What volume does a standard builders dumpy bag hold?

Not the volume of logs...just the capacity of the bag...

[elfinwood saws]

hi, measure your bag, length x width x height and there you have the capacity of the bag.

[Paul Jenks]

Usually about 0.75-0.8 cubic metres

[Justme]

More like 0.5m3

[WFWales]

I always thought that a bag was a cube, but then realised that it is (apparently) 90cmx90cmx90cm = .729 of a metre, but I've also seen this size bag described as .9 of a cube - most confusing.

 

I guess the volume varies in volume if it bulging too!

 

Anyway, I guess it's just a case of watch out for weights and measures i fyou are advertising volumes

[Justme]

I

I guess the volume varies in volume if it bulging too!

 

 

 

First thought:-

 

As the length of the sides cant increase when bulging in the middle the corners will come in. I am almost positive that the volume will decrease exponentially the more it bulges.

 

Think of a cardboard box, if you bulge it in one direction the other two sides come in & reduce the volume & if you keep pulling two sides out the other two side meet & you have NO volume at all.

 

Second thought:-

 

If the sides are added up on a 0.8m bag they come to 3.2m.

Using Pi to work out the volume if it was a round bag 0.8m high it would be 0.68m3.

 

 

So

 

As the base wont let the bag go round at the base I suspect that reality falls some where in between these examples & the bags volume does not change much when bulging.

 

 

So who is up for measuring it using water?

(line it with plastic first)

[Mozza]

Im sure ive read a few times of a few people on here, That its 0.6 of a cube!! Give or take abit

[Hodge]

Here we go again, a customer asked me what size my load of firewood is, i told her 1.5 cubic meters approx, she asked whats a cubic meter?, i then said that it was approx 3 white builders sacks give or take a bit, she said oh a tonne bag, so your load is 3 tonnes? and it goes on and on and on and on.......

[northumbriaforestry]

Here we go again, a customer asked me what size my load of firewood is, i told her 1.5 cubic meters approx, she asked whats a cubic meter?, i then said that it was approx 3 white builders sacks give or take a bit, she said oh a tonne bag, so your load is 3 tonnes? and it goes on and on and on and on.......

 

Brilliant!

[csservices]

Pretty sure I worked out off the measurements on the label on one the other day during a moment of boredom that is 0.6 m3