Common protective finishes listed are powder-coated (often noted as powder-coated steel), rust-proof epoxy coating, PE (polyethylene) coating, galvanized or plastic-coated surfaces, and general “rust-resistant” or “rustproof” descriptions.
Listings mention extras such as gates or lockable doors, planter boxes (sometimes with self-watering reservoirs and drainage holes), lockable caster wheels for mobility, and trellis sections or nets for climbing plants.
Stability and mobility options vary: some models include ground stakes or drilling rods to anchor the arch into soil, while planter-equipped units may sit on lockable wheels so they can be moved and then secured in place.
Many listings are labeled all-weather, rust-resistant, rustproof, or rust-free. Several descriptions state they withstand sun, rain, and frost and require little to no maintenance.
Planter-equipped archways list exterior planter sizes of 16" x 16" x 20" and interior sizes of 14" x 14" x 14.5". They describe a removable water reservoir with a siphon-style self-watering design and drainage holes fitted with caps.