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An auger helps,
assuming your topsoil is not full of hardcore. -
How are you fixing your noggins? They might need to be staggered.
What’s the thinking with your end design? It looks like extra weight and complexity to me for minimal benefit (and cutting/fixing it will be a pain) - if it’s stiffness, a 200mm overhang isn’t going anywhere in 2x5 timber, especially once the deck boards are on to tie it all together.
Depending on how you’re fixing the noggins, I would move the inner four posts out slightly so they’re attached to the main joists, which will make it easier to build. -
If you like I can send you the plans for our deck which were done by a professional. we used 6 x 2 for the framing and instead of using noggins we ran the cross beams underneath the main beams, as apparently this gives more strength, but does depend on the clearance you have.
As with all decking the point of weakness will be the posts into the ground, there are a few options you can use to help this
- Use postsaver sleeves (bitumen sleeves you burn on)
- Upgrade the wood to oak
- switch from wood to concrete, you can get concrete posts designed for decking which have a l shape cut in the top for the wood to rest in
We went with upgrading the wood, and got oak sleepers which we got ripped in half down to 4x4 and then also pot postsavers on them as well for belt and braces.
- Use postsaver sleeves (bitumen sleeves you burn on)
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mespilus
Dramatic_Hammer
Sam_w
@Hovis
Anyone have any opinion on this deck foundation layout? Top of deck is 200 - 250mm above ground level. Intention is to use C16 2x5's and 100 x 100mm PT fence posts in concrete. I'd like to do as little fence post digging as possible...
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