Paving screed (b) for a road finisher (f), with an optionally having extension parts base screed part (g) and on both sides on the upright side plates (5, 6) as a lateral end parts of the paving screed (b), wherein the side plates a maximum width (aa maximum) and in working direction of travel (r) in front of the paving screed (b) a screw channel (7) laterally delimit on the ground within which a paving material of the paving screed (b) is initially introduced, and with at least one removable, in the assembled state at the respective side shield (5, 6) narrowing, which is supported in the direction (v) per side for a within the maximum width (aa maximum) from the outside narrowed installation width (a), characterized in that the narrowing in the direction (v) a substantially in the working direction of travel (r), and oriented an upright guide plate (w), whose height at least approximately the maximum original height in the outer region of the screw channel (7), and that the guide plate (w) on a lateral end of the narrowed installation width (a) limited screw channel (7) with respect to the side shield (5, 6) forms.
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