10 may be equipped with a ladder accessory 18 the ladder accessory 18 includes a mount 20 that may be securely bolted underneath the deck 14 a ladder is slidably engaged in the slots 24 defined in the side rails 22 to enable the ladder to be stowed under the deck 14 or be fully extended and lowered for use the slots 24 define a detent 26 into which a first crossbar 28 of the ladder rests while it is stowed the first crossbar 28 is slidably engaged with the slots 24 to enable the ladder to be stowed or extended the first crossbar 28 may be securely engaged in the slots 24 using cotter pins or other suitable means a second crossbar 30 securely fastened across the lower end of the side rails 22 supports the ladder and prevents further rotation about the first crossbar 28 when the ladder is in the fully extended position fig1 a shows the platform 10 in the fully stowed position fig1 b shows the deck 14 to be fully deployed in the extended position and fig1 c shows a two step ladder accessory 18 mounted under the deck 14 in the fully extended and lowered position fig1 a 1c shows a two step ladder accessory with steps 32 and 33 fig2 is another perspective view of a preferred embodiment of the multi stage extendable personnel platform 10 with a two step ladder accessory in the fully stowed position it may be seen in these figures that the deck and ladder steps are preferably constructed with a non slippery configuration.