A male Irish Wolfhound stands at least 32 inches tall at the shoulder and weighs at least 120 pounds. The Irish Wolfhound female is at least 30 inches tall and 105 pounds. Many are larger. Males usually average 34 to 35 inches and 140 to 180 pounds; females 32 to 34 inches and 115 to 140 pounds.
The biggest problem with these guys is that they think they're lapdogs! They can also be quite stubborn, but are still the sweetest, most even tempered things you can imagine.
I only saw the dog mad once. He was sneak attacked by a Labrador who cut the IW's nose. Within seconds the lab was in full submission with the IW over him displaying a full set of nasty looking teeth and the ugliest growl you've ever heard. The reversal in roles was like I had walked up behind Mike Tyson and sucker punched him. The only reason that the lab survived five seconds after initiating the attack was that the IW chose not to kill him. I and the lab and the IW all knew it was easily within the IW's capabilities. The IW was agitated for a minute or so and then returned to the big, old lollipop that he always was.