sti491
Well-known member
Ok, this is not a garage... but it is a construction/repair question that I thought someone here could provide some input on. It could easily apply to a garage!
These pics are the underside of staircase landings on an older 6 pack condo I own at Carolina Beach, NC. There are six of these landings that connect stairs that zig-zag up two sides of the back of the building.
A couple years ago we noticed that the galvanized floor joist hangers were corroding. The bottom parts of them were falling down by gravity. After consulting a contractor, we added 1x1 "stringers" under the joists (my terminology may be wrong), and re-toenailed the joists to the doubled up 2x6's that make up the perimeter frame of the landing. You can see that new board we already added in each of the pics below. That seems to provide reasonable strength to support the floor load for the failing floor joist hangers. First question: does this seem like an adequate repair? So far we have been happy with it.
New problem and second question: There are larger joist hangers that hold the doubled up 2x6's perimeter frame of the landing at the corners. There are a total of eight of these hangers visible on two sides of the four corners of the stair landing (two per corner). Now we have noticed, the bottom part of those larger hangers are corroding through. They are not all completely corroded at the bottom part that supports the weight, but enough are that way that we are concerned. You can see different stages of the corner double bracket hanger corrosion in the pictures. Where the bottom lip is completely corroded away, we believe the only thing supporting the corners of the frame to the column is the trim fascia on the columns. Maybe some toe-nailing but that is hard to see. The columns are made of multiple sandwiched 2x6's I believe, with cedar siding on all four sides.
We are considering doing a repair similar to adding the long 1x1 pieces under the floor joists, by adding a short 2x4 or 2X6 with SS screws or galv bolts or perhaps just large galvanized nails, underneath the doubled up framing driven through the new board deep into the column. I tried to illustrate that in one of the attachments. There would need to be two of those added supports for each corner (my illustration just shows one). We could also toe nail the best we can, but there is little room to do much of that.
What do you think about this solution? Any suggestions how to do it differently than I attempted to describe? It would be easiest to attach the new short support piece right over the cedar trim that is somewhat supporting the frame corners now. We could cut away the trim and fit the new piece right up to the column core, but it's a little more work. The only other solution we can think of is completely rebuilding the stair cases. But, that is an expense we want to avoid like the plague!
I would really appreciate input from the experts here. Thanks in advance for sharing your thoughts.
These pics are the underside of staircase landings on an older 6 pack condo I own at Carolina Beach, NC. There are six of these landings that connect stairs that zig-zag up two sides of the back of the building.
A couple years ago we noticed that the galvanized floor joist hangers were corroding. The bottom parts of them were falling down by gravity. After consulting a contractor, we added 1x1 "stringers" under the joists (my terminology may be wrong), and re-toenailed the joists to the doubled up 2x6's that make up the perimeter frame of the landing. You can see that new board we already added in each of the pics below. That seems to provide reasonable strength to support the floor load for the failing floor joist hangers. First question: does this seem like an adequate repair? So far we have been happy with it.
New problem and second question: There are larger joist hangers that hold the doubled up 2x6's perimeter frame of the landing at the corners. There are a total of eight of these hangers visible on two sides of the four corners of the stair landing (two per corner). Now we have noticed, the bottom part of those larger hangers are corroding through. They are not all completely corroded at the bottom part that supports the weight, but enough are that way that we are concerned. You can see different stages of the corner double bracket hanger corrosion in the pictures. Where the bottom lip is completely corroded away, we believe the only thing supporting the corners of the frame to the column is the trim fascia on the columns. Maybe some toe-nailing but that is hard to see. The columns are made of multiple sandwiched 2x6's I believe, with cedar siding on all four sides.
We are considering doing a repair similar to adding the long 1x1 pieces under the floor joists, by adding a short 2x4 or 2X6 with SS screws or galv bolts or perhaps just large galvanized nails, underneath the doubled up framing driven through the new board deep into the column. I tried to illustrate that in one of the attachments. There would need to be two of those added supports for each corner (my illustration just shows one). We could also toe nail the best we can, but there is little room to do much of that.
What do you think about this solution? Any suggestions how to do it differently than I attempted to describe? It would be easiest to attach the new short support piece right over the cedar trim that is somewhat supporting the frame corners now. We could cut away the trim and fit the new piece right up to the column core, but it's a little more work. The only other solution we can think of is completely rebuilding the stair cases. But, that is an expense we want to avoid like the plague!
I would really appreciate input from the experts here. Thanks in advance for sharing your thoughts.
