Paper Plate Sizes for Wholesale: Diameter, Rim and Usable Area纸盘批发尺寸指南：外径、盘沿与可用面积
To compare paper plates, measure the outer width, the flat serving area and the rim. Then check the actual portion on both samples under the same conditions.比较纸盘时，把最大外宽、平整装盛区和盘沿分开测量，再用相同条件试装实际份量。
Two paper plates with the same nominal diameter can have different room for food. Compare maximum outside width, the dimensions of the flat serving area, and the shape and depth of the rim. Then put the same portion on both samples and see where it sits when the plate is carried.
Set one measurement method for both samples. Place each plate on a flat surface. Measure a round plate across its widest outside edges. For a scalloped or irregular plate, take two perpendicular spans and record which edges the ruler touches. Measure the flat base before the wall curves up. Photograph the ruler in place so the supplier and buyer can repeat the method.
Illustrative comparison: two round paper plates each measure 230 mm across the outside. Sample A has a 145 mm flat base. Sample B has a 165 mm flat base. If your cake slice and garnish need 155 mm across in the intended arrangement, B gives you a better first sample to try. Check the actual portion before deciding. These dimensions describe a hypothetical pair, not a stock specification.
Use one row per sample in the comparison sheet: reference and date / outer width across two axes / usable base across the same axes / rim depth and profile / intended food and portion / handling observation / buyer decision. Record the plate’s paper construction and applicable use conditions separately. Send TABLE & THEME the intended portion, desired presentation and target outer dimension so the quotation can reference the same measurements.
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同样标称外径的纸盘，平整的装盛空间可能不同。采购对比时记录最大外宽、平底区尺寸、盘沿轮廓和盘深。把同一份餐点分别放在两款样品上，按预期端取方式观察餐点的位置和余量。
先统一测量方法。将样品平放。圆盘量相对两端的最大外宽，扇贝边或异形盘沿两个相互垂直的方向测量，并注明尺子接触的是凸边还是凹边。测量平整盘底时以盘壁开始上弯的位置为界。拍下尺子与盘面同框的照片，便于买卖双方按同一口径复测。
示例：两款圆形纸盘的外宽都是 230 毫米，A 款的平底区宽 145 毫米，B 款宽 165 毫米。如果按预期摆法，蛋糕切片加装饰需要约 155 毫米，可以先试装 B 款，再根据实际效果确认。上述尺寸仅用于演示比较方法。
样品记录表每款一行：样品编号和日期／两个方向的最大外宽／对应方向的平底区宽度／盘深与盘沿形状／目标食物和份量／端取观察／采购结论。另行记录纸盘结构及适用条件。向 TABLE & THEME 提交份量、摆盘要求和目标外宽，可用同一测量口径比较报价。
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