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Curved treads...


Ynot

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An idea I'm throwing around in my head for a show this autumn involves potentially a matched pair of curved stairs to lead down either side of a raised Litedeck platform.

The height of the top deck isn't key, as I can cut legs to suit the steps if needed.

Whether I go for a 90 degree set or a 135 degree or something in that area depends on what may be available.

 

Sort of like this...

Option A being the 90 degree with 4 x 9" steps, option B with 6 steps to give a slightly different feel'.

I might even go for a 180 degree option and take it a little higher...

http://i76.photobucket.com/albums/j40/Ynot_01/Image%2058_zpsmf7crmrg.jpg

 

Obviously this would be great if I can find a hire option to suit but having had a quick Google nothing jumps out so far... yet... I'm still looking.

So - does anyone know of any suppliers who might have something of this ilk? Obviously I'll need a rail around the upstage curved edge, though that can be fairly easily fabricated on site if not.

 

I suspect I may well end up building these if the design goes forward, but if they're available to hire in so much the better/easier.

 

E2A - I have mailed LiteStructures to see if they have anything off the shelf, so we'll see what that comes back with...

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If you did 5 steps you could do it with (per side) a 4x4 square, a 4x4 triangle, and 3 custom made wedge shaped steps made from timber and ply. Apply pin hinges and screws as required.

I'd recommend Impact Productions for creative decking. They might even be able to make the custom wedges for you.

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Apologies this isn't a supplier recommendation, but if I were building them, there's a hire co near us that use a modular tread system, where the scaffold leg passes right through the deck, and the back leg of one set becomes the front leg of the next tread. The legs can pass all the way up and become handrail supports as well.

If I were building them I think I'd make them in singles, as then they could go either way and be the same tread

 

This the drawing of theirs - so each leg supports two pairs of treads and the central spiral would just be one pole all the way up

 

http://i59.tinypic.com/n6sw3d.jpg

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63" equates to 5 1/4 feet which is the height you would be looking at if you did option B. At that height you would have serious wobble on a single piece of 8x4 and even if you cross braced it I doubt you would eliminate all the shake. Normally I only ever reccommend a maximum height of just 24" on a single piece.

 

Are you able to increase the footprint of the main decking?

 

David.

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Don't worry about that - the 8 x 4 would be part of a larger structure - basically a run of 4 ft decking along upstage which itself gets bolted to the brick back wall of the stage space.
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Do you actually NEED a 9" riser?

Need would be rather strong, but to be honest whenever I do build stuff with treads on stage I tend to stick to that as a norm simply because that's what people will be used to in everyday life.

And if building from, say, Litedeck, 9 inches is the depth of the deck plus a little bit, so makes it convenient to fit stuff together.

 

I'm not precious about the step height though nor the platform height as at the moment it's just ideas floating around if I can get the staging sorted :)

 

 

 

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"normal" spiral staircases are usually actually a kit which slots together surprisingly easily - personally I'd be googling for one of those as modifying that to fit over one vertical leg of the steeldeck wouldn't be a tricky job at all and give you a reusable, reconfigurable staircase that is durable and relatively normal size?

 

t

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Not sure if it is any use but take a look at Stage Design 16 in the Alistage website.

Hmm...

Oddly I'd already looked at Alistage, amongst others, but may not have scrolled down far enough to find those pieces...

Thanks.

I've dropped them a mail to enquire

 

 

 

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