After cutting all lumber mark off your two band boards for joist layout at 12 on center.
Proper shed floor joist support.
The distance between the two points should be 5 feet.
Providing more support and rigidity than cross bracing solid blocking is a reasonable alternative but can be an obstacle for running plumbing pipes and electrical wire between floor joists.
Cut all floor joists to proper length along with your 2 rim joists and two band boards and skids.
Solid blocking should be used where floor joists overlap over beams.
Also cut your 4 x 4 skids to length.
Although a 2 6 can span 11 10 a span 8 feet or longer should have a center support beam.
To square the area measure 3 feet along one string and 4 feet along the adjacent string.
View of underside of shed deck.
The screw jacks support the floor joists and keep them out of contact with the ground.
If your storage shed is going to be larger then you will want to put in a middle support beam that goes the opposite direction of the way your joists are hanging.
So what is the proper shed floor joist spacing.
It should be placed at eight foot intervals between any floor joists 2x10 or longer.
The amount of weight a 2 8 can support is going to depend on the span of the joist and how far apart it is from the next joist.
The runners are set back from the shed frame the distance of the overhang.
Set batter boards and mason line to mark the perimeter of the posts that support the runners.
The spacing of both joists and bearers will be governed by the type of structural floor decking that is used.