Sounds reasonable, pit ladder must extend 48" above the sill and or handgrips must be provided to the same height. The rungs must be 16" wide and the rungs must be 12" on center. It shall also be designed to prevent slippage, (knurling, dimpling, or a non-skid surface. 4.5" from center of rung to nearest permanent object behind ladder. Abridged version of code.
