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What size roofing nails do i need

Roofing Nail Sizes

What size roofing nails to use

 

Composition Shingles
Comp Shingles Sheathing Thickness
3/8″ 1/2″ 5/8″ 3/4″
3-Tab comp shingles (Bare sheathing) 1″ 1″ 1″ 1″
Dimensional comp shingles (Bare sheathing) 1″ 1-1/4″ 1-1/4″ 1-1/4″
3-Tab comp shingles over 3 Tab comp shingles 1-1/4″ 1-1/4″ 1-1/4″ 1-1/2″
Dimensional comp shingles over 3 Tab 1-1/4″ 1-1/2″ 1-1/2″ 1-1/2″

*More than 1 layer of roofing not recommended over 3/8″ Sheathing

Wood Shakes(minimum 3/4 ” sheathing)
Wood Shakes Nail Type Minimum Length
18″ Straight Split 5d Box 1-3/4″
18″ and 24″ Handsplit and Resawn 6d Box 2″
24″ Tapersplit 5d Box 1-3/4″
18″ and 24″ Tapersawn 6d Box 2″

 

Wood Shingles (minimum 3/4 ” sheathing)
Wood Shingles Nail Type Minimum Length
18″ Straight Split 3d Box 1-1/4″
18″ and 24″ Handsplit and Resawn 4d Box 1-1/2″

Disclaimer
The above nail sizes are recommendations only. Consult your local building department for specific nailing applications.