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What is bending strength of 2x6 horizontal wood floor

19K views 22 replies 11 participants last post by  ratherbefishing  
#1 ·
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
 
Discussion starter · #6 ·
How far are the 2x6's apart?
How long is the pit?
What is the "floor" on top of the 2x6's
They are across the width which is actually 51". The pit runs about 20 feet so there are alot of these all touching one another to cover the pit. There is nothing under the wood. That is the floor. Under it is the pit which is about 4' deep
 
Discussion starter · #13 ·
Thanks guys. Thought I show a pic just to make sure you understand. You can see the board's running across at 51" and they butt up against each other along the entire 20' length (they are not attached just touching side to side). You can see the 2" lip on each side where the 2x6 sits. So basically the lip is the frame holding the board on each side. So based on responses sounds like this setup is good to support up to 600 pound rear wheel and 300 front? Btw i do not use the pit and have thought to fill but for resale not sure of I'd be throwing good money into bad. It is a feature and who knows maybe one day I may use it. Plus to fill I'd be looking at lots of time and money.
 

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