10d nails are used for securing heavy materials together. The “d” refers to the nail diameter in 1/10th of an inch, so a 10d nail is approximately 3/8 inch in diameter. Some common what are 10d nails used for are:
Framing floors and walls:
10d nails are commonly used to fasten 2x framing lumber together for floors, walls, and other structural elements. Their larger size provides a strong hold.
Attaching decking:
10d ring shank nails are often used to secure deck boards and flooring planks to joists due to their holding power.
Installing trim:
10d nails can be used to attach baseboards, crown molding, and other trim elements to walls where a larger nail is needed for thicker trim profiles.
Securing siding:
10d nailers are sometimes used with fiber cement or wooden siding to ensure a solid attachment to the framing.
As an alternative to lag bolts:
When lag bolts are not an option, 10d nails can be driven into staggered configurations for heavy-duty fastening needs.
Fitting counter and cabinet bases:
The larger shank and head of 10d nails work well for securing cabinets and countertops that exert pressure.
In general, 10d nails are suitable for use with relatively thick (3/4 to 1 inch thick) wood members because their length and diameter accommodate the denser wood. Nails larger than 10d are available and used for heavier applications.