How long should a workout last?

I did a quick search of the forum and didnt seem to come across an answer but how long should a typical workout last?

currently mine are 1hr 20-30mins? is this productive? i have 2-3mins rest between exercises and 45-60secs rest between statics.

any help much appreciated

Nothing wrong with that. Mine aren't much longer.

It all depends on what you're trying to accomplish.

Thanks for your answer, im jusst trying to achieve strong foundations of strength with the basic movements, iv taken killroy70's templete and created my own