Indoor Metal Staircase Opening Design
Budget: $30 – $250 USD
Looking to create a staircase opening by cutting 4 ft if the 6 joists and attaching the mono stringer staircase to the 2x12 joist
Possibly attach a sistered 2x12 to the I beam ( no support column ) which will run 120 inches to the sistered joist of the staircase ( there should be a column support at that connection )
See photos for more detail
Must have a structural Engeneer license and insurance for NYC
Possibly attach a sistered 2x12 to the I beam ( no support column ) which will run 120 inches to the sistered joist of the staircase ( there should be a column support at that connection )
See photos for more detail
Must have a structural Engeneer license and insurance for NYC