LVL Handbook EUROPE

2. LVL STRUCTURES IN FLOORS, WALLS, ROOFS AND IN SPECIAL APPLICATIONS

2.4.5 Ledger beam supports for floors or

canopies

In a timber frame wall of a balloon constructionwhere the walls

are higher than one storey, the floor structures are connected

to the walls with a ledger beam which is either fixed to the wall

stud with nail or screw connections or sits in notches in the

wall studs. Similarly, canopies for, e.g., entrances can be fixed

to the exterior wall frames with ledger beams. They should be

at least 45 mm thick to provide adequate bearing length for the

joists, or 39 mm thick if the joists are connected with hangers.

The beam height depends on the stud spacing and the number

of nails or screws needed for the connections. The bending

moment from the ledger beam supported structure must be

taken into account in the stud design.

Figure 2.67.

Ledger beam supporting a canopy. Can be fixed to the timber frame wall studs with nail or screw connections or notched in to the

studs.

LVL Handbook Europe