What area for two quarters and a spine

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4/5/2019 8:45 AM

Hi,

I'm looking into building a 6ft mini ramp in my garden. I'd like to put a spine in the middle. Initially I was thinking a 6ft quarter at either end of the garden with the flat deck out of some kind of decorative decking. The usable length of the garden is 50 odd ft long.
Space is tight width wise so I can only go about 10ft wide, my question is how long would it be in total and I how tall should I make the spine? should I use an 8ft transition for both the quarters and the spine?
I was half thinking of having a 5ft wide spine and not permanently fixing it down so the flat decking can be used by the kids to play on in winter.
I'm 38 and not so great at park stuff so having a ramp in my garden to play on without others watching the crap old guy would be good. Who knows, the kids may end up using it.

Any ideas or suggestions welcome.

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4/5/2019 9:27 AM
Edited Date/Time: 4/5/2019 9:28 AM

I feel the General good starting minimum length of a mini ramps flat is 2x the ramp's height. So 6ft high, 12ft of flat between each QP and the spine. with reasonable BMX sized decks, i think you'll be using basically all that 50Ft.

10Ft wide for a 6ft spine ramp is gonna be crazy. i'd probably start considering 3-4 ft.

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4/9/2019 2:28 AM

Thanks for your reply jmz.
Its always going to be a compromise and the problem is the width, it's not the wideat garden (25ftish). I'm happy to use the full length as I can make the flat section out of something 'decorative' and use it as a kind of patio as long as the spine can be moved.
How high would you make the spine? As high as the quarters or a ft or so less?

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4/9/2019 4:30 AM

Thanks for your reply jmz.
Its always going to be a compromise and the problem is the width, it's not the wideat garden (25ftish). I'm happy to use the full length as I can make the flat section out of something 'decorative' and use it as a kind of patio as long as the spine can be moved.
How high would you make the spine? As high as the quarters or a ft or so less?

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4/9/2019 4:48 AM

My first question is do you have experience riding spines? If not, maybe consider either smaller (4.5 feet or so tall) OR make a spox (too long to be a spine, to short to be a box jump) or even just not making it that long.

As to width-10 feet isn't bad-just means less carving room. I've had tons of fun on a 4 foot mini with 2 foot wide decks that was 12 feet wide.

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"Hey anybody ever make that mistake like right when you wake up in the morning and you believe in yourself?" -Kyle Kinane

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4/9/2019 5:42 AM

Hi Dave, yes I've got no problems riding spines. That's good to know about the width cheers. I was looking at two quarters that could be bolted into a spine or a box bolted to one end of a box with a straight ramp the back side. Like a modular ramp setup Haha. Looking at park set ups the spine normally is smaller than the quarters unless it's part of two mini ramps back to back. I guess It'd work better being the same height.

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4/9/2019 9:04 AM

I’m building a 12 foot wide 4 foot tall mini ramp for my friends kids right now with an 8 foot flat bottom , so far it’s 20.8 feet long without deck space accounted for , that’s without a spine

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4/9/2019 11:56 AM

I'd go as wide as possible. The added width will build confidence when trying new things. I'd personally also make the spine the same height as the quarters, and I'd probably do 5ft. quarters with that space. Post pictures of the build process! Sounds like a fun project.

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4/9/2019 11:57 AM

Also, are you using skatelite, or some sort of protective paint? Rain will ruin plain plywood as I am sure you already know.

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4/9/2019 1:24 PM

Cheers socalshreds.
My local park has a 5.5ft one and I can just about air it so I guess around 5ft would be ok. Spine the same height then, ok that makes sense.
It's a new house we've bought and as it was quite small we are currently having a new roof with dorma out back, side and rear ext. It's basically just 4 outside walls at the moment. I'm doing the plumbing, electrics etc. so when that's all done I'm goning to start the ramps. Incentive to get the house done!

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2/19/2020 11:52 AM

The main bits of the house are nearly done, just kitchen, bathroom and decorating to do so i'm looking at starting the ramp set up soon.
Kalvis at four one four skateparks has been helpful and i'm gonna get the ramp formers cut by them and the ply sheets from them too. It will save a lot of time and won't cost that much more.
He's drawn up plans for 6ft quarters and 5.5 ft spine but i'm still undecided on 5 or 6 ft, would it be worth having it all 5ft to accomadate a bigger flat.
The QP with the 7ft (2205mm) deep deck is nearest the house and the house has a 3ft overhand so i can't have a shorter deck there otherwise i'd hit the roof overhang.
The QP nearest the house would be 10ft wide and the one down the end 14ft wide, the spine would possibly be 12ft or so.

Photo

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2/20/2020 8:32 AM

rob23 wrote:

The main bits of the house are nearly done, just kitchen, bathroom and decorating to do so i'm looking at starting the ramp set up soon.
Kalvis at four one four skateparks has been helpful and i'm gonna get the ramp formers cut by them and the ply sheets from them too. It will save a lot of time and won't cost that much more.
He's drawn up plans for 6ft quarters and 5.5 ft spine but i'm still undecided on 5 or 6 ft, would it be worth having it all 5ft to accomadate a bigger flat.
The QP with the 7ft (2205mm) deep deck is nearest the house and the house has a 3ft overhand so i can't have a shorter deck there otherwise i'd hit the roof overhang.
The QP nearest the house would be 10ft wide and the one down the end 14ft wide, the spine would possibly be 12ft or so.

Photo

Looks like it will be fun! Do you have a preliminary cost estimate at this point? Just curious what the ball park cost would be for a setup like this.

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Licensed Desk Jockey

3/7/2020 2:35 AM

Sorry for the late reply, not including the shed and the decorative decking it will be about £3k.

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3/7/2020 9:48 AM

rob23 wrote:

Sorry for the late reply, not including the shed and the decorative decking it will be about £3k.

Not gonna lie that sounds kinda cheap for what you’re setting up. You already got concrete laid out or something? Sounds awesome dude!

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3/7/2020 9:53 AM

Thats stirling so about 4k USD.
No concrete base, i'm going to lay decorative type decking which will add to the cost but it can be used for other things and will look better.

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7/14/2020 9:49 AM

I ended up buying a 5ft midi ramp from four one four and have managed to get it width wise down the end of the garden, i had to poke a tree for the deck and encroach into my neighbours garden but luckily he's my dad so wasn't too fussed. I may make a hip off the side with a quarter pipe at a later date I've virtually finished it, i have one more top sheet to put on and the barrier pieces to stop you falling off the decks.
I haven't even ridden it yet and the neighbour to the rear has thrown a wobbly saying it will be an invasion of her privacy and has reported it to the council so we'll see where this goes.
I've attached some photos so far, I'll put some finished photos up soon.

Photo
Photo
Photo

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7/14/2020 12:14 PM

Ask the back neighbor if you put a wall up on top of the deck if that would suffice for her?

Ultimately if your area requires permits for structures, you might be in for some challenging times.

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"Hey anybody ever make that mistake like right when you wake up in the morning and you believe in yourself?" -Kyle Kinane

"BIKES!" -Tom Segura

7/14/2020 2:06 PM

It’s no more invasive than the trampoline lol

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