Insect identification

Each morning for the last week I have discovered thousands of these tiny beetles on the floor of my garage. Most are dead however some are still alive. I have a wood pile in the garage and I am worried that I will infest the house with these beetles if they are in my firewood. Please identify this beetle such that I can determine how to deal with it. I have gone over many websites and found somewhat similar looking beetles and I wondered if it was a varied carpet beetle, however the markings are different and I am finding this in the garage and not the house. I have not found a bark beetle that is this size with markings such as this one.The beetles are quite tiny- approximately 4 mm in length.

I live near Kincardine Ontario.

Thanks for your help!