Lift span
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Everything posted by Lift span
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Posts for raised decking: timber or plastic?
Lift span replied to Lift span's topic in Landscaping, Decking & Patios
You may well be right! I'm a chartered engineer myself so I'm generally happy with the numbers and I've had mixed success with structural engineers in the past. With a timber build I'm happy all the information is out there eg. The TDCA Code of Practice - Raised timber decks is pretty comprehensive. Yes, no timber is the ground thanks! It's just the alternatives I'm looking at. No doubt I'll just end up with 150mm timber posts (probably oak) on steel brackets in concrete with a standard timber frame above with lots of cross bracing. I will ask my local SE though to see what they say. Different view points are always appreciated though!- 30 replies
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Posts for raised decking: timber or plastic?
Lift span replied to Lift span's topic in Landscaping, Decking & Patios
How did you attach your balustrade? Seems that there are lots of ways to do it and some are a bit dodgy for raised decks. I'm after this style of rail below but not sure if it's acceptable just to screw down into the frame at the bottom of those posts. The second half of this video shows some common issues:- 30 replies
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Posts for raised decking: timber or plastic?
Lift span replied to Lift span's topic in Landscaping, Decking & Patios
I'm going round in circles with this! I've contacted two manufacturers of plastic posts. One says you can't use their posts in raised decks over 1m and the other says you can with diagonal bracing. I just don't see any evidence of anybody using it which puts me right off. The other issue that had come up is the balustrade. A manufacturer advised it may be better to fix into steel at that height. So, I've started looking at steel frames as you say Crispy. This is all turning into a massive time waster! I can see why the pros just concrete timber in the ground and let the home owner worry about it in a few years!- 30 replies
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Posts for raised decking: timber or plastic?
Lift span replied to Lift span's topic in Landscaping, Decking & Patios
- 30 replies
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Posts for raised decking: timber or plastic?
Lift span replied to Lift span's topic in Landscaping, Decking & Patios
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Posts for raised decking: timber or plastic?
Lift span replied to Lift span's topic in Landscaping, Decking & Patios
The underneath is going to be open like below with a weed barrier and gravel directly under the deck. Yes, the maintenance of the wood is a concern. I’ve just seen you can get 100mm square plastic posts so maybe they are the answer after all! That way I’d be able to dig footings to be level with the lower level of ground and simply concrete those posts in therefore eliminating any issues with the slope.- 30 replies
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Posts for raised decking: timber or plastic?
Lift span replied to Lift span's topic in Landscaping, Decking & Patios
Here are some photos just to give some perspective. Vertical supporting posts would be around left hand side of that scaffolding.- 30 replies
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Posts for raised decking: timber or plastic?
Lift span replied to Lift span's topic in Landscaping, Decking & Patios
That’s a good idea. Something I’d not considered. Maybe some kind of hybrid where it’s self supporting but with a ledger that’s “weakly” connected just get the level threshold.- 30 replies
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Posts for raised decking: timber or plastic?
Lift span replied to Lift span's topic in Landscaping, Decking & Patios
The more I look at this the more I like it! What’s the maximum height of those columns in your deck? Thanks.- 30 replies
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Posts for raised decking: timber or plastic?
Lift span replied to Lift span's topic in Landscaping, Decking & Patios
Building Control have signed off the plan already. They were only interested in the Balustrade height. Doesn’t need planning permission. Lots of other work did but when the planning officer visited he confirmed that the 30cm rule was from the ground adjacent to the start of the deck. Even with a structural engineer I’ve found in the past the conversation starts with “How do you want to do it” So I’m just looking at options so thanks for all your ideas!- 30 replies
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Posts for raised decking: timber or plastic?
Lift span replied to Lift span's topic in Landscaping, Decking & Patios
I did wonder about a steel option. At 1.5 m high I’d be looking at a beam rather than a plate though. Again, just looking for best practice.- 30 replies
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Posts for raised decking: timber or plastic?
Lift span replied to Lift span's topic in Landscaping, Decking & Patios
I’ve no doubt it’s a good job! I’d be interested in any photos! I would like to find some info that would have these as part of an official spec. The Timber Decking and Cladding Association https://www.tdca.org.uk say 140mm posts. If I could find a spec for 100mm I’d do that as they are obviously much easier to come by.- 30 replies
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Posts for raised decking: timber or plastic?
Lift span replied to Lift span's topic in Landscaping, Decking & Patios
I was looking for some cardboard tubes here in the UK and they seem remarkably expensive for what they are. I have some plastic barrels though which I thought by cutting the top and bottom off I could achieve similar.- 30 replies
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Posts for raised decking: timber or plastic?
Lift span replied to Lift span's topic in Landscaping, Decking & Patios
Wow! That’s a great find thanks. Will definitely explore that option. I didn’t realise you could DIY them.- 30 replies
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Posts for raised decking: timber or plastic?
Lift span replied to Lift span's topic in Landscaping, Decking & Patios
That’s a good idea. I had a very quick look at oak and also laminate posts. Also even just bolting 150x47mm timbers together. I’m just looking for best practice really. How much are ground screws? I presume these have to be done professionally so it would go against my strict (mostly) DIY policy!- 30 replies
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Hello, I’m designing a 6m by 2.4m deck which will be fixed via a ledger board to my house along the 6m length. The other 6m side will be supported by a beam which will be fixed to posts. What posts are best? I definitely don’t want to put timber in the ground. I’m thinking 1. Plastic posts - but these only come 100mm square and I don’t see much evidence of anyone using them. 2. Timber posts 100mm but can’t see any where these are recommend for a deck raised above 600mm 3. Timber posts 140mm as recommended in “TDCA Code of Practice Raised Timber Deck Structures on New Homes”, which is a great guide! The timber posts above to be fixed to a steel bracket with a concrete footing formed from some kid of tube (as in Quickcrete style in the USA). For the 100mm posts I don’t see any specs for spacing where as for the 140mm posts the TDCA guide has good info. Any thoughts?
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Building a dropped ceiling over kitchen peninsula
Lift span replied to Owool12's topic in General Construction Issues
Does anyone have any photos of the build process with an MF frame? I’m just looking to do this now. Thanks -
Lead detail on lean to roof at ends
Lift span replied to Lift span's topic in Roofing, Tiling & Slating
I see what you mean now, thanks! -
Lead detail on lean to roof at ends
Lift span replied to Lift span's topic in Roofing, Tiling & Slating
Did you get around to doing this? Thanks. -
Closing the Cavity - Fixing Large Aluminium Sliding Doors
Lift span replied to Lift span's topic in Brick & Block
I left a 10mm gap at the end of the beams to stuff a bit of foam down but I doubt it will do much good! I wish I was insulating externally but I'm not. To be honest, on my next project I'm knocking whatever it is down and starting again otherwise everything is a compromise! -
Closing the Cavity - Fixing Large Aluminium Sliding Doors
Lift span replied to Lift span's topic in Brick & Block
The wall cavities are 100mm with full fill rock wool. I'm doing internal PIR on the walls as well. For the threshold I bridged the cavity with the beam and block (with a dense block). The gap you see below I'm going to fill with insulation/concrete. Then put either 50mm deep x 250mm wide of Compacfoam/ Bosig Phonotherm/Thermalite (I haven't decided how yet) on top. The triple track will sit on that but set back from the front to end up close to the back edge. At least that's todays plan! -
Closing the Cavity - Fixing Large Aluminium Sliding Doors
Lift span replied to Lift span's topic in Brick & Block
Yes, it's expensive. I'm wondering if I should just cut some aircrete blocks down and use them as the 50mm lift I need instead. A lot cheaper! -
What's wrong with my Extension?
Lift span replied to Lift span's topic in House Extensions & Conservatories
Just to resurrect this, another solution for thermal bridging at the threshold and jambs maybe Bosig Phonotherm 200. Seems similar in performance to compacfoam. Compressive strength is 7 N/mm2 so similar to high strength aerated blocks. I've not used it though!- 25 replies
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Closing the Cavity - Fixing Large Aluminium Sliding Doors
Lift span replied to Lift span's topic in Brick & Block
They can fix into the compacfoam. They've been around and surveyed it already. It's solid stuff! -
Closing the Cavity - Fixing Large Aluminium Sliding Doors
Lift span replied to Lift span's topic in Brick & Block
Just to update this, I went with the Compacfoam in the end. In the jambs and overhead (see picture below). I've wrapped DPC around the jambs so you can't see it! I'm now deciding what to use under the threshold to sit the doors on. I was thinking of compacfoam again but I found out about Bosig Phonotherm 200. Has anyone used it? It seems similar to compacfoam but it's available in bigger wider sheets: