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Old 17.05.2011, 22:38
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Space bag

I am trying to come up with the best idea in terms of shipping stuff home, therefore I was thinking if I used Space bag (the one decompresses after using vacuum cleaner to suck the air out), it would create more space in the box, and perhaps lighten up the weight. So I am just wondering if anyone has done this before or similar experience to share.
many thanks!
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Old 17.05.2011, 22:43
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Re: Space bag

It won't change the weight appreciably (all it removes is air, right? even if it removed ALL the air, how much does a boxful of air weigh?) but might help you fit more stuff in. Depends on what you are packing really. Bulky winter clothes will compress quite a bit, books and papers won't.
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Old 17.05.2011, 23:01
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Re: Space bag

I have used these to store winter/ski clothing with very good results. Towels, blankets, sheets, and other items of this nature will compress smaller than you think. Be sure not to fill the bag too much in order to get the best results. An additional benefit to these bags is the protection of the items within from humidity and insects. I would suggest that you try to pack your Space bags a couple of days prior to your shipment date in order to make sure that the seals are working properly and are staying intact.
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Old 17.05.2011, 23:28
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Re: Space bag

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I am trying to come up with the best idea in terms of shipping stuff home, therefore I was thinking if I used Space bag (the one decompresses after using vacuum cleaner to suck the air out), it would create more space in the box, and perhaps lighten up the weight. So I am just wondering if anyone has done this before or similar experience to share.
many thanks!
Put your apartment in a space bag and suck out all the air. Seal tightly. Reverse the procedure upon arrival at your destination and hey presto!
Alternatively, put Switzerland in a space bag, but be careful to move to somewhere really big for when you let the air back in again.
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Old 17.05.2011, 23:32
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Re: Space bag

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I am trying to come up with the best idea in terms of shipping stuff home, therefore I was thinking if I used Space bag (the one decompresses after using vacuum cleaner to suck the air out), it would create more space in the box, and perhaps lighten up the weight. So I am just wondering if anyone has done this before or similar experience to share.
many thanks!
removals are mostly priced by volume, but the objects which could be compacted by space bags would not significantly affect the price. Big items like sofas are more material. Search on the internet for competitive prices. Circa GBP 400 for a small load to London for example, and circa CHF 22,000 for a household to New York. If you have you have fragile goods you need a decent company.
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Old 17.05.2011, 23:38
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Re: Space bag

I did see Space bag at Globus at the Glatt on sale.
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Old 18.05.2011, 07:13
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Re: Space bag

Space bags however also develop the annoying habit of getting small holes and leaking air into them, especially the smaller bags. Nowadays I find them a hassle and too expensive for something that doesn't work.
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Old 18.05.2011, 08:55
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Re: Space bag

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It won't change the weight appreciably (all it removes is air, right? even if it removed ALL the air, how much does a boxful of air weigh?) but might help you fit more stuff in. Depends on what you are packing really. Bulky winter clothes will compress quite a bit, books and papers won't.
About 1.2Kg per cubic metre at sea level - Give or take.
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Old 18.05.2011, 09:58
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Re: Space bag

I think it's more like 1.2g and not 1.2Kg
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Old 18.05.2011, 10:20
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Re: Space bag

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I am trying to come up with the best idea in terms of shipping stuff home, therefore I was thinking if I used Space bag (the one decompresses after using vacuum cleaner to suck the air out), it would create more space in the box, and perhaps lighten up the weight. So I am just wondering if anyone has done this before or similar experience to share.
many thanks!
We used several of these when packing for our move here in January - have to say big mistake. The removals company hated us for them as once the air is sucked out they become extremely difficult to manipulate and cannot therefore be easily packed into boxes - in fact so much so that I caught one of the removals guys deliberately piercing one of the bags with his knife to let the air back in so that he could get it into the box!! When challenged he said it was an accident and his knife slipped whilst he was cutting tape for the box - but thats another story!

So - wouldn't recommend them for moving purposes but am definitely a big fan of them for storing out of season clothes etc.
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Old 18.05.2011, 10:25
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Re: Space bag

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I think it's more like 1.2g and not 1.2Kg
Nope, checked, double checked, and then did the calculation myself. Definitely 1.2Kg per cubic metre (1.2mg per cubic centimetre) at 20 deg C at sea level. I was quite surprised myself actually.
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Old 18.05.2011, 10:30
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Re: Space bag

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I think it's more like 1.2g and not 1.2Kg
Nope, it's kg. A cubic meter is enormous though. Most of the standard-size moving boxes we used were something like 0.09 cubic meter, so the air in one of those would weigh about 100g.
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Old 18.05.2011, 10:34
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Re: Space bag

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Nope, checked, double checked, and then did the calculation myself. Definitely 1.2Kg per cubic metre (1.2mg per cubic centimetre) at 20 deg C at sea level. I was quite surprised myself actually.
I found it hard to believe as well.... until I checked.

The other factor is the standard air pressure at sea level - 1013mb.

Looking at it practically, if you fill a balloon with a capacity of 1.2 cubic metres with air (they'll be more air actually than normal as it will be under pressure)., and then you weight it, it will weigh 1.2Kg.

(Which is its density, of course).
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Old 18.05.2011, 10:36
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Re: Space bag

You guys are really arguing about how much air weighs huh?


This is awesome.


(where is Prof Doofus and Weejeem?)
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Old 18.05.2011, 10:38
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Re: Space bag

just to add some fuel to the conversation.

Don't forget that weight is mass X gravity.

You maybe talking about the 'mass' of air, not it's weight.


High School was too long ago to be sure of that though.
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Old 18.05.2011, 10:47
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Re: Space bag

I am thinking to use Post to ship some items, searched the forum, and its recommended as the cheapest way.
I think the moving company did that cause they charge by the cubic meter, the more space you use, the more you pay. Maybe that's why they sabotaged your bags...



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We used several of these when packing for our move here in January - have to say big mistake. The removals company hated us for them as once the air is sucked out they become extremely difficult to manipulate and cannot therefore be easily packed into boxes - in fact so much so that I caught one of the removals guys deliberately piercing one of the bags with his knife to let the air back in so that he could get it into the box!! When challenged he said it was an accident and his knife slipped whilst he was cutting tape for the box - but thats another story!

So - wouldn't recommend them for moving purposes but am definitely a big fan of them for storing out of season clothes etc.
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Old 18.05.2011, 11:03
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Re: Space bag

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I think the moving company did that cause they charge by the cubic meter, the more space you use, the more you pay. Maybe that's why they sabotaged your bags...
I'm not aware of any moving company that will only charge by cubic meters.
Prices are generally a combination of both weight (kg) and area (m3).

If you have a truck full of feather pillows, it will take up all the room and you will get charged for a full load.... but the cost of opperating the truck will be considerably less.

If you move a truck full of lead diving weights (specific density of 11.35), you would need less than 2 cubic meters to max the carrying capacity of the truck (generally 20 tonnes).
90% of the truck is empty, but no more can be carried.

So it's a balance.


Using space bags gives you the advantage of packing more stuff into the same box, but the box is now heavier...... because you increased the density of the box.

If the price offered to you is in cubic meters only, then DEFINITELY run the space bags.

Remember to use ALL the packing tape in the world to seal the box and strenghten the corners etc. just in case a bag gets a puncture and starts to expand within the box.


My company offered to move X cubic meters of my stuff to Switzerland, so I gave them my dive equipment (heavy as hell )
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Old 18.05.2011, 11:05
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Re: Space bag

I often use the space bags when traveling as they help keep my stuff separated and dry if my baggage happens to be sitting outside waiting to be loaded on the plane while it's raining. It's happened to me enough before and books etc have been ruined, thus facilitating the purchase of said bags. For shipping purposes, you'll be able to put more in the box by using space bags but the box will weigh much more and cost more due to the additional weight. I've also found that some bags are better than others. My large bags with the vacuum plug always seem to depressurize over the course of a few days, whereas the small roll-up ones that push the air out of one-way seams stay sealed and compact.

If you already have the bags and want to make use of them, I'd say go for it. If you'd have to purchase the bags first, I'd recommend determining if the cost of shipping an additional box or a larger box outweighs the cost of paying for bags plus shipping. So the answer is: it depends.
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Old 18.05.2011, 11:14
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Re: Space bag

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I'm not aware of any moving company that will only charge by cubic meters.
Prices are generally a combination of both weight (kg) and area (m3).

If you have a truck full of feather pillows, it will take up all the room and you will get charged for a full load.... but the cost of opperating the truck will be considerably less.

If you move a truck full of lead diving weights (specific density of 11.35), you would need less than 2 cubic meters to max the carrying capacity of the truck (generally 20 tonnes).
90% of the truck is empty, but no more can be carried.

So it's a balance.


Using space bags gives you the advantage of packing more stuff into the same box, but the box is now heavier...... because you increased the density of the box.

If the price offered to you is in cubic meters only, then DEFINITELY run the space bags.

Remember to use ALL the packing tape in the world to seal the box and strenghten the corners etc. just in case a bag gets a puncture and starts to expand within the box.


My company offered to move X cubic meters of my stuff to Switzerland, so I gave them my dive equipment (heavy as hell )
Packing into a smaller space makes a massive difference if not doing it would result in a second lorry being required with a second driver etc.
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Old 18.05.2011, 22:44
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Re: Space bag

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I'm not aware of any moving company that will only charge by cubic meters.
Prices are generally a combination of both weight (kg) and area (m3).

If you have a truck full of feather pillows, it will take up all the room and you will get charged for a full load.... but the cost of opperating the truck will be considerably less.

If you move a truck full of lead diving weights (specific density of 11.35), you would need less than 2 cubic meters to max the carrying capacity of the truck (generally 20 tonnes).
90% of the truck is empty, but no more can be carried.

So it's a balance.


Using space bags gives you the advantage of packing more stuff into the same box, but the box is now heavier...... because you increased the density of the box.

If the price offered to you is in cubic meters only, then DEFINITELY run the space bags.

Remember to use ALL the packing tape in the world to seal the box and strenghten the corners etc. just in case a bag gets a puncture and starts to expand within the box.


My company offered to move X cubic meters of my stuff to Switzerland, so I gave them my dive equipment (heavy as hell )
Try moving Kryptonite...it's goddam heavy.
Luckily I am Superman, so a quick Inter-Continental relocation takes no time, and it's pretty cheap.
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