Any Civil/Structural engineers on here?

Evening chaps,

Long time no speak (moving house, building sheds, getting companies off the ground, renting a flat, etc etc.)

Anyhoo. I've been working on a website with my dad who is a civil/structural engineer with over 35 years experience and he has constructed some fabulous spreadsheets that do amazing engineering things.

I don't know if anyone is interested but the url is

http://www.caseds.co.uk

All sheets can be viewed and downoaded. They mean very little to me but all the engineering types I know think they are great and they can save you a load of time! Especially if you need to know ho thick concrete needs to be or what spec beam to put in a building!!

Cheers for looking, mods I apologise if this is not allowed.