An alcove is 2750 mm wide at the back and 2770 mm wide at the front. Three cabinets have finished widths 600, 800, 1050 mm. Leave 3 mm between neighbouring cabinets, and divide the remaining space equally into two end fillers at each measurement line. An end filler blank must cover the larger required width plus 10 mm trimming allowance. No structural fixing is assessed.
Calculate the width of each end filler at the back in mm. Keep intermediate values unrounded; round the final answer to 4 decimal places if needed.
