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Thankyou for help. How would you mark exactly inner floor level on the outside gable? There's no door on that wall, so I thought I'd have to mark a line around house from a door using a spirit level? Can't imagine that would be 100% accurate though?! I'd be knocking through the...

Hi, I have a couple of questions about how to fit a wall plate to hang a suspended floor in new extension. I would be attaching it to the current exterior gable like the below pic. Would there need to be a damp proof membrane between the wall plate and the wall? Do the hangers get...

Thanks Tony, Don't think I'll bother, like you say I don't see them on similar extensions I've looked at. What type of blocks would you recommend? I'm trying to keep wall to 300mm max width? I need to learn about u values but it seems daunting!

I'm not really sure how! The pic is properly orientated on camera but on its side on here! It should be 90 degrees clockwise Any help appreciated!

Would a movement joint be required at all on a 3m x 8m extension made on concrete blocks? Cavity wall, both internal and external with blocks and external rendered.

I'd like to know if these pipes can be extended also. Have one on gable end where I want to build conservatory. What fall would be required?

Hi I'm building an extension on side of house. On the gable where the extension goes the boiler flue and overflow pipes come through wall. The roof of the extension will be tucked in under the flue but the overflow pipe would be inside where the extension roof will be. Could I extend...

Yes I'll need to give that some thought! It's not retaining and doesn't have any underground foundation. That's actually an issue, the ground is almost solid rock in part(actually have a photo from a garden wall foundation I dug which shows this), so digging the foundation for this will be...

I'll need to check the regs for the U value. I'm starting from scratch in terms of building knowledge! Tony I would like to keep the wall so it's a separate dining room eventually. A few inches here or there I suppose won't be the end of world. From an earlier comment - are cel on blocks...

The foundations are going to be a nightmare to dig! The boundary wall is one thing, but the ground is almost solid rock. The house is built on the side of an old hill/mountain/volcano! On the other side of boundary wall. It took me 2 months to chiseled out a small strip foundation for the...

If I did go suspended floor, I would be looking to attach a ledger to the side of the house and install joist hangers to it. On the other side (3m span) I'd put joist hangers on the internal block wall. Would it be an issue if the ledger board on house covered the 2 vents on the gable? I'm...

From my rough measurements, I think the internal floor level is 200mm above outside ground level at the top end, and 600mm where the far end of extension would be - therefore drop of 400mm. I thought timber because laying a slab would mean I had 600mm of concrete and associated sub base up...

I'll try and rephrase my question! At the top end of the house, and top end of proposed extension, where ground is at the top of the slope- From what I can see the ground level is only 180mm below the internal floor level. The current floor is constructed with 130mm joists This means...

Yeah I assumed it would need to be a suspended floor as the ground slopes down from one end of extension to the other? Basically I couldn't find any pics, guides on internet of a slab being used on a slope!

I am starting to plan a 3m x 5m side extension which I hope to build myself. A question I have is about the floor. As it's on a slope, and to match existing floor structure, I intend to use a suspended timber floor. At the top end the ground level is so high that ill struggle to get the...