Nail Sizes

The pennyweight scale that manufacturers use to size nails was developed centuries ago as an approximation of the number of pennies it would take to buy 100 nails of that size. The range of nail types available today (and what they cost) is much wider, but the scale is still in use. Each pennyweight refers… Read More »

Types of Nails

The wide variety of nail styles and sizes makes it possible to choose exactly the right fastener for each job. Nails are identified by their typical purpose, such as casing, flooring, or roofing nails; or by a physical feature, such as galvanized, coated, or spiral. Some nails come in both a galvanized and non-galvanized version.… Read More »

Trim Moldings

Trim moldings give character and definition to many carpentry projects. In addition, you can sometimes use them to cover up carpentry mistakes, such as hiding small gaps in wall corners when the drywall hasn’t been cut perfectly. It’s important to measure and cut moldings precisely so that when installed, they fit together snugly without gaps.… Read More »

Plywood and Sheet Goods

1. Finish plywood 2. Sheathing plywood 3. Strandboard 4. Plastic laminate (bonded to particleboard) 5. Waferboard 6. Particleboard     There are many different types of sheet goods, but plywood is the most widely used. Plywood is an extremely versatile sheet material that is made up of thinly sliced layers or plies of wood. Plywood is available… Read More »


Lumber for structural applications such as walls, floors, and ceilings is usually milled from strong softwoods and is categorized by grade, moisture content, and dimension. Grade: Characteristics such as knots, splits, and grain slope affect the strength of the lumber and determine the grade. Moisture content: Lumber is also categorized by moisture content. S-DRY (surfaced… Read More »