Brad/bræd/ Definition 1 of 1Pro Tip 1/3Carpentry Use Brad is commonly used in woodworking or carpentry. I bought a pack of brads for my woodworking project. Pro Tip 2/3Not for Weight Brads aren't designed for heavy objects; they can't support much weight. Don't use brads to hang heavy mirrors; they might fall. Pro Tip 3/3Minimal Damage Use brads when you want to minimize damage to the surface. Use a brad to avoid splitting the wood on your delicate trim.