That's an excellent and absolutely critical question. The short answer is a resounding yes, you not only can but absolutely should get a sample before committing to an order of that scale. Any reputable manufacturer or supplier will expect and welcome this request—it's a standard and professional part of the process for a custom commercial project.
Think of it this way: ordering fifty benches is a significant investment and a permanent addition to your urban landscape. A digital image or a small swatch in a catalog cannot accurately convey the true color, grain interaction, texture, and sheen of the finished product under real-world lighting. Requesting a physical sample allows you to verify several key factors: Does the color match your architectural plans or surrounding elements in different daylight conditions? Is the texture smooth or rustic, and does it align with your vision for public use? How does the finish feel, and does it provide the expected level of protection?
Furthermore, this step is about partnership and quality assurance. It confirms the supplier's capabilities and ensures you are both aligned. We recommend requesting a sample on the actual bench material (e.g., the specific wood species like oak or teak) and having it finished with your chosen stain and topcoat. Place it on-site, observe it for a few days, and even test it for cleanability. This due diligence prevents costly disappointments and ensures your fifty benches will be a source of pride for years to come. Always insist on this step; it's a hallmark of a well-managed project.