Help! I'm having my house re-done & I was walking outside & tripped over a wire type fence on the ground & cut my leg in 3 places. The wire fence thing looked brand new. Do I need a tetanus shot?

If not up to date. If you have not had a tetanus shot within the last 10 years he will need to have a booster shot. It would also be a good idea if those cuts are deep to have them looked at that for any foreign body that may have become lodged in them and for general wound care.
Tetanus . Depends on how long it's been since you have had a booster shot. Tetanus is recommended every 10 years , if you had a shot last year i'd say no but if it's been 7 or 8 i'd get a booster. This all assumes you had the initial series as a child.