Stackable Benefits?

[Ferrick]

I was wondering if the benefits of amulets, shields, boots, etc. are stackable or does the higher (more powerful) eliminate the lesser? For instance...

Example #1 - I have shield that provides half-thaw ( I assume this means the duration of a freeze spell cast upon your PC is halved in duration; correct?). I also have an amulet that provides half-thaw. Together would they stack giving a much better benefit or does only one of these items work?

Example #2 - I have two small charms that provide 1-2 points of feeeze damage each. Will they work together (stack) or will only one work providing 1-2 cancelling the other one out?

Thanks.

[Siberys]

Everything in diablo 2 stacks, everything does.

A shield that gives a +5% fire resistance and an amulet that gives a +10% fire resistance results in a 15% fire resistance. Same with any and every other magical property.

[Dottie]

Although it might be worth adding that they stack in different and sometimes quite complex ways.

[Deadalready]

Another thing to note is having two reduced freeze duration items works rather unusually.

If a freeze length is 8 seconds:
1 item with reduced freeze will reduce it to 4 seconds
2 items with reduced freeze will halve what's left making 2 seconds
3 again divides what's left into 1 second.

Unfortunately two halves don't make a whole in diablo.