Polystyrene sheeting or Polystyrene Sheets (better known as foam sheeeting
or foam sheets), is cut to size from blocks 2400x1200mm.
There are three grades of polystyreneavailable, although other grades may
be obtainable. The grades generally are based on the density of the material.
The most common grade is the SL grade or normal grade, followed by M grade,
which has a higher density. Both grades are stocked, whilst the higher grade,
H grade is......    show more