Basic cement/ ballast Q

[Onoff]

Simpson Strongtie do do special screws for joist hangers. They aren't threaded all the way so I guess retain their strength in the portion under the head where the shank is beefy (like a nail). Probably expensive. Definitely expensive compared to nails. 

[zoothorn]

On 06/09/2019 at 09:31, Russell griffiths said:

Can you do a sketch from above and one from the side showing height difference, from lower to higher pads, you might not need any hangers, in fact they might stop you gaining height you need. 

 

This is the idea my chap sketched. This is the base four beams (my shed perimeter walls ontop of these). No.4 is lying flat: ontop of this he suggested joists running from beam no.3 > across beam no.4...... & onward a bit too (as much as I can, for a walky bit this extra bit).

 

The joists [not yet shown] will go in & attatch most critically via joist hangers @ beam 3 (where my series of 'o' zits & '>' arrows are), & to the flat beam no.4.

 

2x 85cm H full sleeper thickness, for ontop of lower 2x plinths & up. 85cm is the difference in height between lower two plinfs & upper two.

 

Thing is I can't see what beam I can my that's ~3.4m long. The hardwood ones are 2.4m long.

 

 

[PeterW]

I’d go the other way with the infil joists and hang them off the side rails. You can work from the “hill” side so less to wave around and then board and joist as you go. 

 

Use 6x2 tanalised timber with timber hangers and you won’t go far wrong. 

[zoothorn]

24 minutes ago, PeterW said:

I’d go the other way with the infil joists and hang them off the side rails. You can work from the “hill” side so less to wave around and then board and joist as you go. 

 

Use 6x2 tanalised timber with timber hangers and you won’t go far wrong. 

 

Hi PeterW- so you'd go joists from beams no.1 to no.2 instead you mean?

[Declan52]

46 minutes ago, zoothorn said:

 

Hi PeterW- so you'd go joists from beams no.1 to no.2 instead you mean?

Yes the span will be less.

[zoothorn]

9 minutes ago, Declan52 said:

Yes the span will be less.

 

But that means the cantilever'd extra area (walky bit RHS), over & onwards past beam no.4, won't happen tho.

[Russell griffiths]

No 4 cannot lay flat like that, no strength in it flat, needs to be stood up and beams cantilevered over the top of it. 

[andyscotland]

4 minutes ago, zoothorn said:

 

But that means the cantilever'd extra area (walky bit RHS), over & onwards past beam no.4, won't happen tho.

 

Yes it will, beam 1 &2 don't change length, you just hang the joists from the sticky-out bit of them. Would also mean beam 4 could be vertical so do a better job of holding 1&2 together and stopping them twisting.

[Declan52]

4 minutes ago, zoothorn said:

 

But that means the cantilever'd extra area (walky bit RHS), over & onwards past beam no.4, won't happen tho.

Why not???

Put them in like this on the pic. If your worried about the strength of beam 1&2 then double it up. Or put a diagonal brace like the purple line on the pic. The line down the middle are your noggins.

[PeterW]

Thanks @Declan52 that is exactly what I was trying to describe...! 

 

@zoothorn a cantilevered 6x2 will comfortably take the load of a deck you’re talking about here for a metre or so - add a couple of angled supports down from the edge to the posts too and it will be even stronger. 

[zoothorn]

@Declan52 ah ok I'm on board.. thanks for that sketch. I guess then I can do a proper ~1m walky bit then (& put up ballastrade whatnots in time) if not constrained by the cantilever'd addition.

 

Ok so how about the joists @ 400mm centres, C'tex in between etc below cabin area.. is this the right idea?

 

I'll get C'tex in the roof probably even if only 25mm, & as the back 's unseen I can maybe go 50mm (on the outside.. if I can think how to attatch, & cover/ clad etc: not on the inside as space is priority). Sides & door/ front.. tricky tho.

[Declan52]

Are you making this shed/cabin from scratch or buying a pre made version ???

[zoothorn]

1 hour ago, Declan52 said:

Are you making this shed/cabin from scratch or buying a pre made version ???

 

I'm buying a used typical log cabin affair Declan.. disassembling it there/ rebuilding it here: so you see I can modify a bit here n there.

[Onoff]

Food for thought. Loads of ideas on Pinterest (free to join).

 

[zoothorn]

That's a useful pic. gives me a rough idea. Pininterest? what on earth does that mean?

[Onoff]

Just playing around...

 

6 minutes ago, zoothorn said:

That's a useful pic. gives me a rough idea. Pininterest? what on earth does that mean?

 

Just go to pinterest.com create a free account or get the app from the Playstore etc. An absolute mass of ideas and projects on any subject. I searched "cantilevered deck" for example:

 

 

You get the odd ad thrown in. Tried "diy guitar amplifier":

 

 

 

[Onoff]

Just playing:

 

[zoothorn]

apps & playstores & instagram/ smartphone stuff.. trouble is I think I have a massive aversion to it.  pininterest & made up words like it jarr so much it creats such a huge irritation before I start to understand what the dickens it means/ is!! (I loathe smartphones for many reasons, & most especially the word 'app' even this I've no idea what it is, or want to!!).

 

I must be weird.

 

but I much appreciate the ideas.

[Onoff]

3 minutes ago, zoothorn said:

apps & playstores & instagram/ smartphone stuff.. trouble is I think I have a massive aversion to it.  pininterest & made up words like it jarr so much it creats such a huge irritation before I start to understand what the dickens it means/ is!! (I loathe smartphones for many reasons, & most especially the word 'app' even this I've no idea what it is, or want to!!).

 

I must be weird.

 

but I much appreciate the ideas.

 

You ARE weird!?

 

Just sign up on your laptop. 

 

https://www.pinterest.co.uk/

[zoothorn]

b b but i dont know what it is. is it a cult?

[Onoff]

5 hours ago, zoothorn said:

b b but i dont know what it is. is it a cult?

 

A cult? No more than Facebook, Instagram and all the rest are.

 

All about Pinterest:

 

https://www.pinalytics.co.uk/

 

You don't even have to sign up to look at the pictures and get a feel unless you want to delve deeper into the story behind the image along with more photos. Just type: 

 

https://www.pinterest.co.uk/

 

Into your browser search bar, when the site comes up then search for what you like or are interested in; decking, raised decking, wooden walkway, wooden deck, cantilevered deck, homemade speakers, sheep etc, etc.

Edited September 10, 2019 by Onoff

[Declan52]

It's probably the best free app out there that gives you access to a vast library of ideas from cooking to building stuff.

[zoothorn]

53 minutes ago, Declan52 said:

It's probably the best free app out there that gives you access to a vast library of ideas from cooking to building stuff.

 

Ah ok.. so is it a library of sorts, with a photo basis to it: is that the sort of site design principle of it?

[zoothorn]

14 hours ago, PeterW said:

I’d go the other way with the infil joists and hang them off the side rails. You can work from the “hill” side so less to wave around and then board and joist as you go. 

 

Use 6x2 tanalised timber with timber hangers and you won’t go far wrong. 

 

PeterW- starting to look at timber (specifically if I can get a beam long enough as per my beam no.1) at my jewson site, but 'tanalised' or '150 x 50mm' [I assume 6x2] = no results.

 

Is 'tanalised' treated timber for use in exterior jobs?

[PeterW]

Try 147x47

 

Its “old” 6x2

 

And yes, tantalized is treated