When fastening 6 nails per shingle, the 3,600 box will cover 7.5 squares (750 square feet)

STAINLESS STEEL: Used where both the properties of steel and corrosion resistance are required; although stainless steel does not readily corrode, it isn’t fully stain proof—certain conditions can and do affect it such as low oxygen, high salinity, or poor circulation environments; 300 series stainless makes up 70% of all stainless used, and is the most corrosion resistant, ductile, and weldable type of stainless steel; these alloys are subject to crevice corrosion and pitting corrosion.

304 / 305 grade alloys are the most versatile and widely used of stainless steels contains 18% chromium and 8% nickel; recommended for exterior applications where a higher level of corrosion resistance is desired.

316 (also called marine grade) has superior corrosion resistance versus other chromium-nickel steels when exposed to chemical corrodents such as sea water; slightly more nickel and the addition of 2% molybdenum is what makes 316 considerably more resistant to corrosion than the 304 family; recommended for marine environments.

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