BotusBuild

Yeah, seen those, but it seems there is no ability to then add 320mm or 350mm riser on top of it. Something like this: https://www.tradepipes.co.uk/320mm-diameter-chamber-riser-135mm-high?source=googlebase&msclkid=d5cfa3ce6b6b1d0776b3c94ae6007d73&utm_source=bing&utm_medium=cpc&utm_campaign=Shopping Campaign&utm_term=4577816667752085&utm_content=Underground Drainage

I have two installed inspection chambers of 600mm diameter both of which are to be reduced in height following a landscaping design change. As part of that change we're also looking to reduce the drain cover size to 320 or 350mm still allowing access for any required clearing. I can find plenty of access restriction or shaft reducing caps, but none of these look like they are designed to allow a change from one riser diameter to another e.g 600mm to 320/350mm (hope the next diagram explains it a bit more) | | ___| |___ | | | | Anyone know of a suitable "riser diameter changer" product?

Love the exhaust and radiator setup on the orange triumph 😀

What is this talk of only using at weekends? Blasphemy! Probably just have a Willis heater and timer setup on a 12C setback temp, with a 15C working temp. Did I mention the proposed 4 post lift 🙂

UFH loops in the slab already with 100mm PIR underneath 😀

For clarity, currently the floor is the foundation slab, poured with C25 concrete. It was covered with plastic sheeting in the warm weather, and will need grinding and levelling (or the other way round) before I do anything. Tiles? I'm bound to drop a hammer or spanner when working in the car/s 😀 probably give this a miss. Which i think narrow MY choice to a 2 part (2k?) epoxy. So, any preferences on 2 part (non slip) epoxies?

@Great_scot_selfbuild, curious about what the 110mm pipe coming through the wall is for?

Which make? We used one as a temporary measure and parts of it are still tacky after 3 years

Its getting close to the time for the garage to get its floor covering 😀 Epoxy resin. Product recommendations please. Can it be DIY'd?

But then I wouldn't have had the headroom I wanted inside

FYI - nearly ready for concrete pour

JJI's are cheaper based on short research 16 x 86.06 = 1376.96 or

It will 😀 and thanks

Yes

A quick bit of research show the Glulam to be about £50-70 cheaper, but would as @Mr Punter says would be deeper. For clarity, this is an approximation of the proposed layout described above (ignore the uneven spacing of the 3m joists)