Built up beam fastener

[astidham]

The built up beam html calls for a 4.5 to 5 inch nail. Where do you find a 5" nail, Lowes no success 

[FrankInWI]

6" barn nails too much?

[John Raabe]

The purpose of the longer nail is to tack all the layers together. They are not structurally functional as it is the wood doing the work.

[MountainDon]

When I built my cabin foundation beams I used 3 1/4 inch air nailer nails. I built it up one layer at a time, nailing the third and fourth layers to the center two. Mine were 4 layers of 2x, no spacing materials.

[astidham]

Thank You MountainDon i will do the same

[kev_alaska]

Same here as MountainDon did. My pole barn beams were three 2X10s with 1/2" plywood sandwitched for fill. 52' long.

kevin