How to variety a undamaging or tomb? what do i need

what do i need
Concrete mix?
Answers:    I would craft the frame out of angle iron and cover with 1/4' sheet metal. Everything weld. Then make ithe hasp nouns recessed so that a pad locks hasp is passed through internally and cant be cut. Use a hilti drill and anchor it down to concrete.
Which company make the best powered tools,?
Easier and cheaper newly to buy what you need. shop around for best price.