Excellent question. Coordinating with your landscape architect is crucial for a seamless public space design. Here are detailed specifications to facilitate that discussion.
First, establish the primary dimensions. A standard single-unit bench is typically 1500-1800mm in length, 450-600mm in depth, and 450-500mm in seat height. Backrests, if included, should be angled between 95-105 degrees for comfort. Clear specifications here ensure the bench fits the intended footprint and user needs.
Material selection is paramount for durability and aesthetics. Common options include:
* Hardwoods (e.g., Ipe, Oak): Require FSC certification and detailed finish specifications (e.g., natural oil, powder-coated aluminum).
* Recycled Plastic/Polymer: Specify UV stability, colorfastness, and load-bearing ratings.
* Metal (Steel/Aluminum): Must specify powder-coat thickness (e.g., 80 microns), finish type, and anti-graffiti coatings.
Structural integrity is non-negotiable. Specify that all benches must comply with relevant standards (e.g., BS EN 16139 for stability). Key points include:
* A minimum load rating of 2000N for public use.
* Secure, tamper-resistant fastenings (e.g., internal bolt fixings).
* Detailed foundation requirements (e.g., in-situ concrete footings) for permanent installation.
Finally, provide details on accessibility, maintenance, and finish. Ensure designs accommodate wheelchair transfers (per ADA or local guidelines). Specify a clear maintenance schedule and warranty period (typically 10+ years for materials and structure). Share material samples and CAD drawings with your landscape architect for final visual and technical alignment.