Quote from Meriont >>

can anyone other than me acess this if they steal it

 

 
Absolutely.

A necromancer's best friend. 

"Where do you store all those bodies so they dont stink up the place? Oh, just my handy dandy portable pocket. It's seven easy payments of 199 gold per month. It can be found at your local retailer, check out if you qualify for financing."

If I put an enemy into the portable hole during combat, does the creature make its save immediately upon being forced into it, or during its own turn?

So I am curious lets say you get 2 portable holes, Place each on their own sheet of metal (or wooded boarding, etc)

If you were to place these planks one on top of the other, holes facing each other, one would not actually enter the other, though they could be dangerously close to doing so.

You then secure the sheets together with something like say sovereign glue  (or immovable rod for a less permanent "solution")

What would happen? 

As I read it you would essentially make an inescapable prison? 

Could the hole be torn from the inside?

What if say you pollymorphed a dragon into something small before doing this? Would it be crushed in the limited space, or would it simply teleport to the nearest available space upon assuming it's regular form?

I am aware much of it would likely be up to DM discretion, I would just like to know some thoughts on this possibly broken combination.

While speaking of portable holes and bags of holding my daughter says, "put them together and what do you got? Astral-plane-bobbity-boo!"

Quote from AliAlien >>

If I put an enemy into the portable hole during combat, does the creature make its save immediately upon being forced into it, or during its own turn?

The creature only needs to make the escape save after the hole is folded up (which will take another action). Otherwise, the creature can simply climb (or fly) out of it.
"Any creature inside an open portable hole can exit the hole by climbing out of it."

If you Shove an enemy into the hole, it gets the normal Athletics/Acrobatics check to avoid your Shove, and another Acrobatics Save to avoid falling in, as per the standard Shove rules. (Creatures larger than 6' across, i.e, most Large or bigger creatures, can ignore the hole with little effort.)

Failing all of that, the creature would make its Strength Save to escape on its own turn(s).
"If the hole is folded up, a creature within the hole’s extradimensional space can use an action to make a DC 10 Strength check."

Quote from GMPhillips1995 >>

So I am curious lets say you get 2 portable holes, Place each on their own sheet of metal (or wooded boarding, etc)

If you were to place these planks one on top of the other, holes facing each other, one would not actually enter the other, though they could be dangerously close to doing so.

You then secure the sheets together with something like say sovereign glue  (or immovable rod for a less permanent "solution")

What would happen? 

As I read it you would essentially make an inescapable prison? 

Could the hole be torn from the inside?

What if say you pollymorphed a dragon into something small before doing this? Would it be crushed in the limited space, or would it simply teleport to the nearest available space upon assuming it's regular form?

I am aware much of it would likely be up to DM discretion, I would just like to know some thoughts on this possibly broken combination.

1. The wording on the escape attempt specifically avoids traps like this.
"On a successful check, the creature forces its way out and appears within 5 feet of the portable hole or the creature carrying it."
The creature would simply exit the dimensional space. (Notice it does not say "exits... through the opening". The creature simply "appears".)

2. The Strength check afforded by the Polymorph spell to burst its surroundings would be against the hole's Escape DC 10. If it failed (which is very unlikely for creatures that size), it would be crushed and take damage.

Quote from TriseAlpha >>

Quote from GMPhillips1995 >>

So I am curious lets say you get 2 portable holes, Place each on their own sheet of metal (or wooded boarding, etc)

If you were to place these planks one on top of the other, holes facing each other, one would not actually enter the other, though they could be dangerously close to doing so.

You then secure the sheets together with something like say sovereign glue  (or immovable rod for a less permanent "solution")

What would happen? 

As I read it you would essentially make an inescapable prison? 

Could the hole be torn from the inside?

What if say you pollymorphed a dragon into something small before doing this? Would it be crushed in the limited space, or would it simply teleport to the nearest available space upon assuming it's regular form?

I am aware much of it would likely be up to DM discretion, I would just like to know some thoughts on this possibly broken combination.

1. The wording on the escape attempt specifically avoids traps like this.
"On a successful check, the creature forces its way out and appears within 5 feet of the portable hole or the creature carrying it."
The creature would simply exit the dimensional space. (Notice it does not say "exits... through the opening". The creature simply "appears".)

No, I think you're wrong there. The Save-Check only applies if the PH is folded.

If the PH is placed on a large enough moveable object, I would say you could indeed make an prison that way. No need for a second hole. It would also be enough to lean the "plank" against a big enough wall. Though if you don't want to suffocate anyone, you should leave a small gap. - Though, depending on the size of the gap. Person might just be able to free themselves somehow.

I'm more curious about what would happen if one would turn the PH upside down. Would everything fall out?

How freaking amazing would it have been  if they had stuck the skull into a bag of holding?  

Quote from plectrumman >>

Apologies for the correction Agamendor, but 6' in diameter is more like 1.8 m - typo?

Similarly that 6' diameter circle when unfolded would have an area of approx 28 square feet (2.5 square meters) giving a volume of 280 cubic feet (7.5 cubic meters.) That's 7,500 litres or approx 2000 US gallons.

Hope that helps.

 That's a lot of beer. Or wine. Or acid.

Consider this: fill the hole while it is flat on the ground with acid. Fold it up carefully. Later, toss it against a wall and get the hell out of the way. Pro tip: be acid resistant and/or immune, throw it on a flat ceiling?

Is that a 2000 gallon acid bath? or a terrible idea I should have kept to myself that horribly abuses the rules?

Quote from TheMassDM >>

Can this be used as a bag of holding in that you can use a bonus action to retrieve an item from it, should you reach into the folds of the cloth?

The bag of holding specifies that retrieving an item from the bag requires an Action.   
(Not a Bonus-Action; that may be a house-rule your DM is using?) 

The Portable Hole requires an Action to unfold it, after which you've got a 6ft by 10ft cylindrical hole of jumbled stuff to pick through. Use your one free Object-Interaction wisely. 

GMPhillips1995 >>

 

Could the hole be torn from the inside?

No!   
This is an important distinction from the Handy Haversack & the Bag of Holding, which are both susceptible to being overloaded, pierced, or torn.   
(Don't toss unsheathed blades in your Bag of Holding!!!) 

Note that if the faces of two unfolded Portable Holes touch, they'll destruct & pull all creatures within 10ft into the Astral; so, maybe don't put them quite so close together!?   
Perhaps if you frame them, & then glue the frames together? 

But why risk destroying your precious items this way?   
I'd rather try combining it with a Well of Many Worlds... which doesn't lead to an extradimensional space!   
So, assuming that Well ever opened a portal to somewhere nice, you could leave it laying open at the bottom of the Portable Hole, & still carry it with you, folded up inside... 

Quote from Theran_Baggins >>

WARNING: Math

~ Portable hole: ??? lb, (approximately) 245 ft^3

Weight: Less than one pound regardless of contents (& no internal weight limit).   
Volume: 282.743 cubic feet

Quote from Agamendor >>

Here is some quick info for our non-american users.

Its 8.006 Cubic meter, it fits 8006 L of liquid
It is also 1.8 m wide, 3 meters deep.

Quote from plectrumman >>

Apologies for the correction Agamendor, but 6' in diameter is more like 1.8 m - typo?

Similarly that 6' diameter circle when unfolded would have an area of approx 28.2743 square feet (2.627 square meters) giving a volume of 282.743 cubic feet (8.006 cubic meters.) That's 8006 litres or approx 2115 US gallons.

Hope that helps.

Same!   
(Bolded italic sections humbly corrected by me.)

Sorry, water is not very compressible. Only less than 5% denser at the bottom of the Mariana Trench.

Excuse me my good people, what would be to happen if I were to open the hole mid-air, or throw it at someone for example my annoying goblin brother. As I The Dapper Goblin wish to fill the hole with Alchemy Jugs and command them to spew out mayonnaise. I wish to make a mayonnaise bomb, mix a bit of oil in and my friend, flaming mayonnaise launcher, perfect for any of you artificer folk. Would this work?

                                                                            - The Dapper Goblin

Unfortunately water is essentially incompressible, so any change due to temperature or pressure on liquid water is very minor. Now if you could get air at that pressure, then we are talking

As a DM, I would tend to rule that a highly pressurized substance is equivalent to a strength check above 10 (it would take a strength check above 10 [or a mechanical advantage, such as a lever or winch] to close a door or seal against that pressure differential).

As such, I would rule that either it leaks immediately upon being removed from the high pressure area, or suddenly at an inopportune time (and pressure leakage can cause weird noises).

Technically, RAW, this wouldn't happen; but neither would anything happen because of the air suddenly being released.

Can't help thinking that whoever came up with this Magical Item had seen one too many Loony Tunes Cartoons ....

if you were to put a book in the portable hole then climb into the portable hole and cast glyph of warding on the book could you close the portable hole open it 100 ft away and take the book out would that disenchant the book???

IRL, 280 cubic feet od space would be about 12 hours of air, not 10 minutes

>>> Imagine if you could place it in a bag of holding, or another portable hole.

IIRC merging 2 BOH or PH or any combination of BOH and PH or other extradimentional space results in a BIG BOOM destrroying anything in a certain radius  and "is not recommended"

Can you cast a Glyph of Warding (Spell Glyph) inside a Portable Hole (or a Bag of Holding), close the hole, travel with it, and then pull it out when you need to trigger the Glyph?