How to Check a Square for Accuracy
Check any square with the line-and-flip test. Learn how to test speed squares and combination squares, adjust them when possible, and store them well.
Measuring & Layout Tools
Tape measures, laser measures, levels, squares, stud finders, calipers and marking tools.
How to Read a Tape Measure (Fractions Made Easy)
Reading a tape measure is simple once you know that the big marks are inches and the small marks are fractions of an inch. This guide covers the marks, the sliding hook, and common measuring mistakes.
Stud Finder Not Working? Why It Gives False Readings
Troubleshoot your stud finder's false readings with these practical tips. Learn how to calibrate, avoid common pitfalls, and stay safe when drilling.
How to Use a Laser Level for Shelves, Tile and Pictures
A clear guide on using a laser level for shelves, tile, and pictures, including setup, alignment, and accuracy checks.
Tape Measures: Length, Standout, Blade Width and Hook Accuracy
Learn how tape measure length, blade width, standout, and hook accuracy affect your work. Tips for choosing and using a tape measure.
Levels: Spirit, Torpedo and Laser Levels Explained
A guide to spirit, torpedo, digital and laser levels. Learn how to choose, check accuracy, and use them for indoor and outdoor projects.
Digital, Dial and Vernier Calipers: Resolution and Accuracy
A guide to digital, dial, and vernier calipers covering resolution versus accuracy, what they measure, and how to use them for common DIY tasks.
Marking Tools: Pencils, Knives, Gauges and Chalk Lines
Marking tools are the quiet step between measuring and cutting. This guide explains the common types, what each does best, and how to match a tool to your accuracy needs.
Speed, Combination, Framing and Try Squares
A guide to speed, combination, framing, and try squares: how they differ, how to check accuracy, and which one to buy first for DIY projects.
Laser Distance Measures: Range, Accuracy Specs and Features
A guide to laser distance measures covering range, accuracy, features like area and volume functions, and when to stick with a tape measure.
Measuring & Layout Tools: Tool Guide
This category brings together tools for measuring distance, angle, and level. The tape measure guide explains key specs such as length and standout.
For checking plumb and straightness, browse the levels subcategory. Additional resources cover squares, calipers, and marking tools.