Quick numbers before you shop: how much soil, how heavy it gets when wet, how much water it drinks and what a pro would charge.
Rough planning aid only. Allowable loads vary widely by building and code; residential balconies are often designed somewhere around 200–490 kg/m² (≈2–4.8 kPa) of live load. Always confirm with your building manager or a structural engineer.
Indicative ranges for professional installation in North American cities; materials, access and local labour rates change prices significantly.
