The house we bought has a pit in the garage used for servicing the under side of a car. The garage floor and pit is all concrete. The pit is about 5' wide and has 2" wide lips on each end (and 1.5" high) where 2x6 wood lies between the opening horizontally (basically sits inside the lips on each side). My question is how strong is the wood floor at the weakest point (middle). I know it depends on type of wood and other factors so I'm looking for a rough estimate. Long story short I have been walking on it for years even in the middle and can't even tell a slight bend when i do. But I plan on storing my motorcycle in the garage this year and due to various reasons I will need to drive the motorcycle over parts of the wood floor. The bike is 800 lbs plus me on it so 1000 lbs. I know the strength is greater on the outside edges but curious if I were to drive the bike over the middle would the floor be in danger of collapse. If the strength would be questionable does anyone have some suggestions to make it stronger. Thanks