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I have a solid wood exterior back door - as can be see there's lower panels that are removable. I'd like to install a catflap, however, the hole circumference is a little larger than the removable panel. Any advice on doing this? Not sure if I can just jigsaw away or if any precautions/sealing...

Well, structural engineer said the current floor is strong enough, though it's a bit of a mess from glue etc so we're going to board over it with another 9mm exterior ply anyway. Plan is to epoxy paint afterwards, but I'm just wondering if there's anything we could use to fill joins between...

I know, we'll have an inspection table but generally want the light to be as good as it can be, without getting specialist.

To some extent, both!

It's 600mm units we have and the unit will be used as a printing workshop, so light quality is vital - would appreciate any thoughts on Fluo vs LED in that respect.

Thanks Sunray, good to get some 'real world' feedback, the fluros are staying!

Thanks Adam - it was used as retail previously, so doesn't have 3ph at the moment. The loads also 30A + 3x ~24A actually (and it isn't a constant draw on that, just warm up). I do realise there'd be the running cost argument on changing lights to LED but at an £800 differential, I'd imagine...

Thanks DS, I could do that - would be handy to get a rough idea of what the options might be before that stage though.

I've bought a commercial premises for my workshop that's needing some re-wiring, I'm just looking for thoughts on the best approach. The unit is in 2 parts (front/back) - power comes off the street at the front where there's a CU for the front, then there's a another mini 63A CU that runs to...

Span was roughly the same (slightly lighter but slightly smaller span, joist centres the same, 600mm). I think in all likelihood they'll be fine but structural engineer can confirm tomorrow.

Thanks for the responses, I do have a structural guy coming next week (relating to a wall), so was planning on asking him. I should note, I previously had two of the 400kg variants of the machines on the same floor on my house with no reinforcement/no issues.

I believe we'd need some serious floor reinforcement for concrete and the likelihood of cracking afterwards is high!

Thanks Dazlight - I'll look into that. Was also considering some kind of industrial interlocking tile, but that's looking pretty damn expensive for 110sqm.

Was it something like stopgap 1200? As far as I can tell a bottle might cover 5sqm, I'm looking to cover over 100.

Thanks for the advice, didn't realise the epoxy paint could be used over ply - would the epoxy go any way to protecting the wood from the casters digging in and leaving tracks?

I've recently acquired a new workshop which I'll be using in a 'light industrial' capacity - I'll have a few machines around 500kg each, the problem being that the current subfloor is ply (which I will prop to reinforce). Ideally something like a concrete SLC would be used but I gather from...

Thanks again, I wasn't even sure what the materials were called, but drain channel was the type of things I was thinking. Question is (for anyone who cares to chip in) could I now place a drain channel up against the wall, then landfill the remaining gap? I.e. could another mini retaining wall...

What sort of serious damproof work would be involved? Tigercub - yes, that sounds more like what I'm thinking, was just wondering what the structure would look like/contain/be made from?

I'm getting a set of french doors installed at the rear wall/back of the house - the house sits just below the level of the back grass and currently that lowered space is slabbed from the rear wall to where the grass starts. We need to fill that void so the doors open onto the same level as the...

Thanks Gerry, yes I think that should work ok. Only quandary now is how to work in the dado at the top - if going for something with a square edge at the bottom (e.g. Belgravia architrave looks similar), I don't see how the joining edge could be blended running perpendicular to the current...