: I found some snakes living in the floor
: of my house I would like to know what
: they are they are brown with beige
: stripes a yellowish bottom very big
: 6footlong we live beside a lake our
: ground is damp
You didn't mention what part of what state you live in, which would be a big help.
From the size and description, if you live in the southeastern part of NC, SC, or GA, or most of FL, it would have to be a Yellow Rat Snake, totally harmless. The only other thing that matches this description is the Garter Snake, also harmless, but they don't get that big, max about four feet.
At any rate, your snakes do not match the description of any eastern venomous snakes, so by a process of elimination, they are harmless.
The Appalachian Naturalist