Riddle Tables

We produce a variety of tables to cater for whelk grading, winkle grading and other shellfish related products. There are three standard size tables to choose from. To provide you with a bespoke product, we can additionally adjust dimensions to your requirements.


  • Fish box grader
  • Gunnel mounted grader
  • Free standing grader


  • 500mm by 100mm
  • 500mm by 1250mm
  • 800mm by 1250mm

The three options above are available in stainless steel, aluminum, and mild steel.

Riddle tables can additionally be fitted with a range of extras. Please choose from below:

  • Sprinkle bar
  • Discharge shute
  • Discharge funnel
  • Working tables
  • Multiple discharge areas

Drop in grids for your grading tables can be manufactured to your requirements. Please see the images for examples.