Review Of How Long Does Raised Garden Bed Last References. Web it really depends on the material of the raised bed; Web the options are:

Redwood raised garden beds can last up to 15 to 20 years, although they may be more expensive than cedar. Web galvanized metal raised beds last up to 20 years with minimal maintenance, while corrugated metal raised beds typically last up to 60 years. Web all you have to do is dilute the powder with water and paint it directly onto the wood on the inside of your bed with a brush or roller.