Horizontal loading might come from diaphragm action such as the floor system dragging lateral wind or seismic load into the ledger.
Floor ledger design.
Standard detail for allowing a deck ledger connection to a floor truss.
Most decks are supported in part by a ledger that is attached to the band joist or rim board of the floor system.
The inner stud wall that the floor system attaches to sits on the concrete slab which in turn is poured over amvic silverboard insulation.
With a compressive strength of 35 psi the foam is more than adequate to handle the additional 5 psi from the weight of the floor system.
The workers run screws through each cradle driving them through the ledger board and into the face of the connector.
Standard detail for attaching a ledger to the side of a floor truss gable.
Here we provide details for attaching a 2 nominal lumber deck ledger to the side of residential floor ladder constructed with metal plate connected wood mpcw floor trusses.
One steel cradle goes around the ledger board at each connector location.
Strong drive sdws screws fasten the lvl ledger to the wall.
When both vertical and horizontal loads are applied the resulting load will be at an angle to the bolt that is somewhere between 0 degrees for purely horizontal loading and 90 degrees for purely vertical loading.
After the concrete has cured workers mark the design height of the floor on the walls and lift the ledger into position.