Another row of blocking might help a little, but will not be enough to justify the effort. A second carrying beam under the middle with 3 more support posts would be perfect.
My family room has 2x10's spanning 13 feet and my 10 pound dachshunds cause it to bounce when they trot across. It won;t fall down with 2x8's, but it will bounce.
You could try to just stabilize the central area with just 2 support posts and a shorter carrying beam.
Bud
My family room has 2x10's spanning 13 feet and my 10 pound dachshunds cause it to bounce when they trot across. It won;t fall down with 2x8's, but it will bounce.
You could try to just stabilize the central area with just 2 support posts and a shorter carrying beam.
Bud
