We typically use a girder & slowly jack the floor level... often with the historical restoration we need to weight down from above as well. It takes time dependent on the joist type & crown or is that bow when it's the wrong way?
I know the coastal fir out here takes about a week to come back weighted, it's the oak that'll slow it down, you don't want to create too much loosening of the fasteners. You'll be leaving the girder in place so you could go with a 4x6 but it's depend on the post displacement (o/c's). |
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