Comparison of Siding Materials for Storage Units - Natural wood is considered by many the most attractive siding for storage units. But wood exposed over time to water usually rots. Some woods, however, contain natural resins that make them relatively rot-resistant. Cedar is such a wood and very popular as a siding choice for storage units. But even cedar siding is not maintenance-free. Coat cedar with a UV-inhibiting sealer/preservative every other year to protect it from ultraviolet solar radiation. Apply a clear stain, as well, to help preserve its natural beauty.
Outdoor benches are sometimes made to be dual-purpose, offering a compartment to store tools and a cozy spot for taking breathers while mowing the lawn. Potting sheds and small greenhouses are a boon to the true landscaping enthusiast. Some outdoor storage buildings come with large skylights and virtually function as greenhouses in their own right.