Questions and Answers for GRK Fasteners #9 x 2-1/2 in. Star Drive Bugle Head Deck Elite Wood Deck Screw (400-Pack)

A:  Thank you for contacting us. A general rule of thumb is 350 screws per 100 square feet if using deck boards 6 inches wide with joists spaced 16 inches apart. With deck boards 4 inches wide, expect to use 480 screws for the same joist spacing. There are also many deck fastener calculators found online.

A:  Hi Jeffrey! We need a few more details for what application. Please feel free to call us at (877) 489-2726 or email us at CS@itwbrands.com. There we will gather the necessary specs to recommend the product you will need and get you an answer.

A:  Hi, I'm Andrew from GRK. Deck Elite screws provide many benefits including eliminating the need for predrilling while fastening pressure treated 5/4" boards. Please be aware of the screw length to allow proper embedment into the deck joists.

A:  Hi, this is Andrew from GRK. Yes, the GRK Deck Elite screw can be used in subfloor applications.

A:  We do not recommend Deck Elite for structural applications. The GRK R4 is code approved for structural applications through our ICC-ES code report ESR-3201. For higher capacity needs, ESR-2442 covers our RSS line. https://icc-es.org/report-listing/esr-3201/ https://icc-es.org/report-listing/esr-2442/

A:  Hi, I am Andrew from GRK. The Deck Elite screws are specifically designed to be used with pressure treated deck boards. For your application, the GRK RT Composite Trim Head Screws would be better suited for composite deck board material.