Spend a few quid on a padlock. I can rake or bypass cheap padlocks in a 30 seconds. I bought cheap picks on the net, and learned watching YouTube. I just learned for fun, and it's not hard. I don't use cheap locks any more. My shed used to be protected by a master lock. Search YouTube for master lock videos. Then buy something decent... If you have a couple of grand in tools, don't buy a £5.00 padlock
Picking a descent lock seems to involve dissambly and working out the inside...I've often thought the best pick defense on front doors is fitting 2 night latches...not many 4 handed pickers around.
Best was to assess a lock is to ask a locksmith...with some locks they basically prefer to just drill because in the real world some locks are very very difficult.
Lock pickers need locks to practise on....expensive locks are difficult to find cheap and rare in use...focus on cheaper locks?
Cheap locks have poor tolerances. That's part of why they are cheap. That's what makes them easy to open. Lock Smiths are a great idea. But any clown can use a bolt cutter, so reducing access for that is most important.
Thanks for all the input folks.
My workshop security has drastically improved with different padlocks & strengthened hasps, mortice lock, CCTV, alarm, reinforced doors & more tool security inside.
Years ago I was called to a farm oils distribution company , someone had cleared out £2800 or more of engine oil ,funnels & a lovely 24 volt on demand fuel pump unit . ( £ 10K plus in todays pennies )
They'd use a 1 & 1/4 " bit & brace to silently drill a row of joined up holes across five boards 18 inches up opposite the hinges in the T&G door . Then simply pulled hard on the middle board which popped out . They then took the next two either side of it out & got in , cut some more holes to make a large hole for the gang to get in & move th oils close to the door ready for when the van man came back round again . They drilled the lock out in the same manner but this time from the inside , unseen from outside & passed everything out the door into a transit van .
It took 25 min max for them to do the job at 0600 in the morning .
Everything was on video , four guys including the Transit driver .
Once the chippies had rebuilt the door I started my work .
I ended up putting a stretched wire web across the door , using a decent grab adhesive on all contact points then glued on a sheet of hardboard over which I laid a 2 mm sheet of steel which l screwed on every 75 mm round the perimeter with 45 mm screws & wired it to the main alarm system I was about to install .
As good as they're gunna get. Not liftable & purposefully burred screw heads.
The alarm is my main comfort. I've got to the point where in myself I atleast feel I've done everything sensible & proportionate to protect my equipment & now I just have to get on with work/life.