Steel building

A relative of my husband is planning to build a not so big storage.He is contemplating of having it concrete or just use some steels.My husband told him that nowadays more and more steel buildings are being built.People who have limited budget like my husband's relative would really think the option where they can save money and time.So maybe steel building kit would be a good idea for him.

Even us we want to build a storage where we can put our trailer,riding land mower,some machines,tools and some other things.Our garage is kind'a small so no more alloted space other than for our two cars.