Math of the Trade Poster (Printable) | Woodworking Math, Carpentry Formulas & Layout Guide | 2:3 3:4 4:5

If guessing worked, carpenters wouldn’t need math.

The Math of the Trade poster is a straight-to-the-point reference for the numbers you actually use—no fluff, no theory, just what helps you build things square, level, and correct the first time.

Hang it in your shop or keep it on your screen. Either way, fewer mistakes.

What’s on it:

• 3-4-5 rule & Pythagorean theorem
• Roof pitch, stair math, rafter length
• Conversions (imperial + metric)
• Fractions that matter (not the ones you forgot in school)
• Miter angles, circle layout
• Board feet, spacing formulas
• Wood movement & kerf loss

Why it’s useful:

• Stop re-Googling basic math
• Build faster with fewer mistakes
• Actually understand what you’re measuring

File Details:

• Instant digital download
• Includes 2:3, 3:4, and 4:5 ratios
• Print sizes from small to large (up to 18x24+)
• High-resolution files

No shipping. No waiting. Just download and get back to work.