Abstract: Screen plates comprise a support frame with support profiles and screen linings made from a rubber elastic material arranged in field-like and detachable manner thereon and are fixed between adjacent support profiles by means of ledges located on their opposite end faces and projecting downwards over their underside. A particularly simple construction from the fitting and replacement standpoint with respect to the individual screen linings and in particular for the purpose of preventing wear, is obtained if the support profiles are constructed as I-profiles and the ledges of the screen linings are provided on their remote outsides with, in each case, one slot engaging over the beams of adjacent I-profiles from the free edge, the width of each screen lining measured on the slot bottom being at least zonely somewhat larger than the clear width between the beams of adjacent I-profiles.