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.

Roofing nails per square

Nails Per Unit
Comp shingles, 4 nails per shingle
Wood shakes, 2 nails per shake
Wood Shingles, 2 nails per shingle
OSB-Plywood, 72 nails per sheet

 

Roof Material Nail Length Pounds Per Square Coils Per Square
Comp shingles smooth 1″ 1.33 2.63
Comp Shingles Dimensional 1-1/4″ 1.63 2.63
Wood Shakes medium 5d 1-3/4″ 1.75 NA
Wood Shakes heavy’s 6d 2″ 2.50 NA
Wood Shingles 3d 1-1/4″ 2.28 NA
Plywood-OSB 8d 2-1/2″ 1.35 NA
Note:
Shingles and and shake quantities can vary depending on the width of the individual shingles and shakes.

Roofing Nail Specifactions

Nail Specifactions
nail specifactions

Most Roofing nails have a large head diameter of 7/16 and are hot dipped galvanized or electrogalvanized to reduce rusting. Drywall nails have cupped head and are Phosphate coated to reduce rusting.

Nail Size Nail Length Shank Diameter Head Diameter
2d 1″ 0.070 11/64
3d 1-1/4″ 0.085 13/64
4d ¬†1-1/2″ 0.1 1/4
5d 1-3/4″ 0.1 17/64
6d 2″ 0.115 17/64
7d 2-1/4″ 0.115 17/64
8d 2-1/2″ 0.131 9/32
9d 2-3/4″ 0.131 9/32
10d 3″ 0.148 5/16
12d 3-1/4″ 0.148 5/16
16d 3-1/2″ 0.162 11/32
20d 4″ 0.195 13/32
30d 4-1/2″ 0.210 7/16
40d 5″ 0.230 15/32
50d 5-3/8″ 0.250 1/2
60d 6″ 0.260 17/32