Concepts

Wood Movement: Why Boards Swell and Shrink With the Seasons

Why a 12-inch oak board moves 1/4 inch between summer and winter, what species move most, and how to design for seasonal wood movement.

• Hardwood
• Quartersawn
• Plainsawn

Beginner · Updated May 4, 2026

What is Outdoor Wood Glue?

Outdoor glue must survive rain, UV, and freeze-thaw. Type I PVA, polyurethane, or epoxy — which to use and why regular carpenter's glue fails outside.

• Teak
• Ipe
• Outdoor

Beginner · Updated May 12, 2026

Brad Nailer vs Finish Nailer

Which One You Actually Need and When to Use Each

Brad nailers shoot 18-gauge nails for light trim. Finish nailers shoot 15- or 16-gauge nails for baseboards and cabinetry. Here's how to choose.

• Brad Nailer
• Finish Nailer
• Power Tool

Beginner · Updated May 12, 2026

Picking the right wood screws for your project

Gauge, Diameter, Pilot Holes, and How to Choose

#6 = 0.138", #8 = 0.164", #10 = 0.190". Wood screw gauge, pilot, and clearance specs, plus the 2/3 thread-penetration rule for picking length.

• Hardwood
• Softwood

Beginner · Updated May 12, 2026

What is 5/16 on a Measuring Tape?

5/16 on a tape measure is the 5th mark from any inch — shortest height, between 1/4 and 3/8. Read all tape fractions without counting every tick.

• Tape Measure
• Hand Tool Only

Beginner · Updated Apr 26, 2026

Table Saw Blade Height: How High Should It Be?

Set your blade so gullets just clear the top of the wood, 1/8" to 1/4" above the surface. Why that measurement prevents burning, and when to break it.

• Table Saw
• Power Tool

Beginner · Updated May 4, 2026

Using a Router: How It Works and 5 Key Variables

The complete mental model — anatomy, setup, edge profiles, joinery, and troubleshooting in one place.

A router profiles edges, follows templates, and cuts mortises — three things no other shop tool does. Master five variables to control every cut.

• Router
• Power Tool
• End Grain

Beginner · Updated May 12, 2026

What Is a Zero-Clearance Insert?

How It Eliminates Tearout on the Table Saw

A zero-clearance insert replaces your stock throat plate to stop tearout and dropped offcuts. Make one in 15 minutes or buy a Leecraft insert for $30.

• Table Saw
• Zero Clearance Insert
• Power Tool

Beginner · Updated May 12, 2026

What Is a Radial Arm Saw?

What It Is, Why It Disappeared, and Whether You Should Own One

The radial arm saw ruled American shops for decades. A 3.7-million-unit recall and the compound miter saw ended it. Here's what it still does.

• Power Tool
• Cabinetry

Beginner · Updated May 12, 2026

What Is a Miter Joint?

Why They Look Great, Why They Fail, and How to Fix Both

Miter joints hide end grain for clean corners but are structurally weak. Learn the geometry, cutting methods, reinforcement options, and troubleshooting.

• Table Saw
• Miter Saw
• Router Table

Beginner · Updated May 12, 2026

What Is a Dovetail Joint?

Why They Work, When to Use Them, and How They Compare

Dovetail joints lock two boards with wedge-shaped tails and pins. Learn how they work, the five types, proportions, and when to choose another joint.

• Through Dovetail
• Hand Cut
• Furniture

Beginner · Updated May 12, 2026

What are Mortise, Dovetail, and Mitre Joints?

The Three Joinery Families and How They Combine

Mortise, dovetail, and mitre joints each solve a different problem. Learn what each one resists and how the secret mitered dovetail combines all three.

• Through Dovetail
• Hand Cut
• Furniture

Beginner · Updated May 12, 2026

What is a Mortise?

The rectangular socket half of the most durable joint in woodworking. What it is, how to size it, the three types, and where it shows up in furniture.

• Furniture
• Workbench
• Hybrid

Beginner · Updated Apr 25, 2026

What is a Kerf Cut?

A kerf cut is the slot a saw blade removes. In kerf bending, a row of these cuts lets rigid wood curve around a radius without a steam box.

• Table Saw
• Power Tool

Beginner · Updated Apr 25, 2026

What Does Boiled Linseed Oil Do?

What It Is, What It Does, and When Not to Use It

Boiled linseed oil isn't boiled, offers minimal protection, and its soaked rags can spontaneously combust. What it is, what it does, and when to use it.

Beginner · Updated May 12, 2026

What Is Butcher Block Oil?

Why Mineral Oil Works, What Vegetable Oils Do Wrong, and How Often to Reapply

Butcher block oil is food-grade mineral oil. Learn why it works, which oils destroy cutting boards, and how to build a maintenance routine.

• End Grain
• Hardwood

Beginner · Updated May 12, 2026

Using Mineral Oil on your woodworking project

Food-Safe, Simple, and Effective

Mineral oil is the easiest food-safe finish for cutting boards. Learn which grade to buy, the FDA rules behind it, and how to apply and maintain it.

Beginner · Updated May 12, 2026

What is Pine Tar?

The Traditional Wood Preservative

Pine tar is a dark, penetrating wood preservative from heated pine. Learn where it works, how to apply it, and how it compares to modern finishes.

• Outdoor

Beginner · Updated May 12, 2026