Buying a pole barn from a manufacturer and having it installed costs roughly: $6,000 to $10,000 for a 16 x 24 economy unit. $8,000 to $12,000 for a 24 x 24 garage-style barn. $15,000 to $25,000 for a 40 x 60 storage facility. $25,000 to $30,000 for a 36 x 48 barn.