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What is the average height per floor for buildings? I am looking at a 35 story building but the numbers aren't matching up to the website. It’s between 10 and 12 feet per floor correct??

I've seen as low as 8 feet per floor. I recommend buying a laser. If you don't have one, you can conservatively use 9 feet per floor, but only do this if you have a conservative freefall limit. Don't use 8 versus 9 if it makes the difference between static-lining or freefalling.

35 stories sounds freefallable to me, altitude-wise and all other considerations left aside. I'd be surprised if it wasn't at least 300 feet.

If you do a search on lasers, you'll find a lot of useful information. Mostly people use some Bushnell model. It's handy if it's small (fits in one hand and your pocket, as opposed to the larger binocular style versions) and has a lit-up display so you can read it at night. Mmm, maybe I'll expand on this and turn it into a BASE WIKI item. Seems a recurring question...

The "standard" varies greatly depending on where in the world you are.

Yea it’s definitely going to be freefall able. An article in the paper said it will be around 450 feet. With 35 stories listed and the pictures on a website I’d say its has 36 floors (35 of them are living spaces). Then there is a structure on the top but it doesn’t look too big so I’m guessing from the roof it will be around 370-400. The different floors may also be different heights too because the top floors are going to be penthouse suites and middle ones are much smaller apartments.

Yea I was looking into getting a laser. I went and got one of those cheap golf range finders but it was a POS so I returned it. Yea Jaap, that would be a good thing to add. If you already have a good deal of info it would save me some time. I’ve been busy as a bizotch! The building is also going to have a park on one side and a garage on the other so landing areas are looking very positive at the moment as long as they don’t change anything between now and when they build it.

Yea I definitely need to get a laser or something. There is a 17 story building I’m looking at also. Very open landing area but it would obviously have to be a static line or PCA. Its pretty low!

What is the lowest height for a safe Static line and/or PCA. An experience jumper I jumped with said people do static lines off an object that is 170 feet. I did PCA’s from the same object at 265.

Got a PM earler and was provided a great resource. Got some new details. How bout them apples!

Technical Data
Height (struct.) 155 m 508 ft
Floors (OG) 37
Construction start *
Construction end 2007
Units (rooms) *

Building in General
Type of construction high-rise building

It depends on what kind of canopy-flight times you are comfortable with. Asking what is 'safe' in a sport like this is never quite possible. There are too many variables and much depends on the jumper himself.

I regularly static-line, PCA and tard 180 feet and I find the canopy times more than adequate. It allows me to work in a solid 90 degree flat turn before landing. The lowest I've been on was a 150 foot balcony, but the owners wouldn't let me jump it. Shame...

Note that if you have a line-over at that altitude, you are pretty much garantueed to spin it in with the line-over. Depending on many factors (type of the line-over, softness of area underneath object, object strike potential, weight of the jumper, body-armor and other protection, canopy size) the results can be anywhere from walking away to death.

Don't count on being able to clear the line-over before landing, and if you do, you're still going to have a very rough landing. Be prepared for the worst. Wear a condom.

Edited to clarify I mean tarding instead of general unpacked jumps.

Which sorts of unpacked jumps have you done at this altitude?

I'm thinking we ought to differentiate a little better in this kind of discussion, because there are obviously some sorts of unpacked jumps that can require more or less altitude.

Yes, I apologize. I have edited my post above to say tard instead of unpacked.

In fact, I recently had a discussion about roll-overs at low altitudes. This person was quoting other experienced jumpers saying that both roll-overs and tards can be taken as low as 150 feet. I disagreed saying that I'd like more altitude for a roll-over.

I haven't entirely ruled out the roll-over or tard-over at the 180 foot span, but I'm certainly not ready for it. It's not impossible I think, but it's definitely an advanced jump.

 

http://www.emporis.com/en

Yea I forgot to do that.

Both Emporis and Skyscraper Page were already linked on the resource section of BASE WIKI.

You should become an editor by the way. Email me for the password if you want to!