BERLIN-A herd of dairy cows nearly lifted the roof off their barn in central Germany when methane released by the animals caused an explosion. Police in Hesse state said in a statement that a static electric charge apparently triggered the detonation, and a spurt of flame, on Monday at a farm in Rasdorf. The roof was slightly damaged and one cow suffered light burns.
Handrails shall be provided on at least one side of each continuous run of treads or flight with four or mâ¦ore risers. - Maximum riser height allowed by code is 7 3/4 and you would need to have 3 or less risers to omit a handrail. The answer would be 23 1/4 max.
Per 101:7.2.2.4.2, the 72 inch wide stair is required to have a center handrail, as well as a handrail on both sides of the stair enclosure. The new stair is also required, per Table 101:7.2.2.2.1(a), to provide a 44 inch minimum width clear of all instructions, except projections not more than 3-1/2 inches at or below handrail height on each side.