Hold downs for steel sheds are available. In the accessories section there are 2 different types of hold down clamps suitable for concrete floors. Choose the correct type of clamp based on whether you have a flat floor or a recessed floor.
If you order a timber floor you will not need hold down clamps. The shed can be nailed to the floor and the weight should be sufficient to hold it down. In high wind areas we recommend pegging your wooden floor down as well.