supports and brackets is steel the foot of the optional ladder 18 can be secured to the ground or floor with safety spikes 19 generally the rail post 11 can be designed for a 2 u00d7 4 inch rail common 2 u00d7 4 wood or other rail the preferred distance for the vertical supports from the building is around 8 inches the preferred span or distance between the vertical supports is around 12 feet although many other spans are possible the preferred outward reach of the walkboard support brackets is around 26 inches the walkboard support bracket should form a triangle and be welded everywhere with certified welds fig2 shows a side view of an embodiment of one vertical support 1 a sliding sleeve 5 can move snugly but smoothly up and down an optional top piece 2 allows the vertical to be coupled to the top of a wall or into an roof eve a horizontal bar 9 is supported by an angle support 4 to form a bracket a horizontal walkboard 13 can be supported by the bar 9 an optional ladder lock piece or hold bracket 16 can be inserted into and through optional holes in the walkboard 13 at the end of the horizontal bar 9 a vertical stub 10 can be used to attach a handrail bar 11 a handrail 14 can be held on the handrail bar 11 by use of a two receiving plates 12 and a pin 20 which is inserted through holes in the receiving plates.