Referring to FIG. 1, reference numeral 100 refers to a multiblade lawn mower upon which the preferred embodiment of the present invention of a mower deck 5 is mounted. The lawn mower 100 is shown to be a riding lawn mower, but it could also be a walk-behind or pull-type lawn mower. Lawn mower 100 generally includes a frame 112 having a pair of driven wheels 114 at the rear end thereof and at least one or more caster wheels 116, 118 at the forward end thereof. The lawn mower 100 also includes a conventional power means, such as an internal combustion engine 120, for driving the wheels 114 and for driving the cutting blades. An operator's station 122 is provided on the frame 112 to accommodate an operator. Conventional controls 124 are provided for controlling the operation of the lawn mower 100.