Uploaded August 2025 | Updated September 2026, 1 day ago
Miter joints look clean—but they’re notorious for failing. In this video, I show you why they fail and exactly how to make them stronger, tighter, and longer-lasting. Whether you're a beginner trying to get your first picture frame right, or a seasoned woodworker who’s sick of cracked corners, this MIMS dives deep into what really matters.
We’ll cover:
• The truth about miter joint strength
• How wood movement plays a role
• Glue sizing for end grain
• Two spline methods: corner splines and segmented splines
• Which grain direction to use—and why it matters
• Why clamping is just as important as cutting
• Band clamps, tape tricks, and custom jigs for perfect glue-ups
This isn’t just how to do it—it’s why it works.
Let’s make the miter joint make sense.
My clamping jig → youtu.be/c5v_hc2Q1Ho
My miter bar build → youtu.be/Arum0rFN0mM
My favorite miter gauge → amzn.to/41vF0H1
Close second miter gauge → amzn.to/3UOWQkC
As an amazon associate I earn from qualifying purchases.
Check out my other channel! → @makethingswithrob
Become a patron! → patreon.com/makethings ←
Huge thank you to my patrons that keep this thing going!
*MAKER TEAM*
Michelle B
Keith Current
William L McNally
Rich Lightfoot
Tutor the Barbarian
Aubrey G.
Nukebert
Sam W.
Aaron Knows DIY
G. Salazar
David B.
Marc B.
Richard B.
Ben. K
Make Things
00:00 Intro
00:19 What is a miter joint?
02:22 Why do miters fail?
03:24 How to get precision
07:35 How to add strength
10:41 Bonus clamping 2 methods
13:02 Thank you!
#MakeThings
Miter joints look clean—but they’re notorious for failing. In this video, I show you why they fail and exactly how to make them stronger, tighter, and longer-lasting. Whether you're a beginner trying to get your first picture frame right, or a seasoned woodworker who’s sick of cracked corners, this MIMS dives deep into what really matters.
We’ll cover:
• The truth about miter joint strength
• How wood movement plays a role
• Glue sizing for end grain
• Two spline methods: corner splines and segmented splines
• Which grain direction to use—and why it matters
• Why clamping is just as important as cutting
• Band clamps, tape tricks, and custom jigs for perfect glue-ups
This isn’t just how to do it—it’s why it works.
Let’s make the miter joint make sense.
My clamping jig → youtu.be/c5v_hc2Q1Ho
My miter bar build → youtu.be/Arum0rFN0mM
My favorite miter gauge → amzn.to/41vF0H1
Close second miter gauge → amzn.to/3UOWQkC
As an amazon associate I earn from qualifying purchases.
Check out my other channel! → @makethingswithrob
Become a patron! → patreon.com/makethings ←
Huge thank you to my patrons that keep this thing going!
*MAKER TEAM*
Michelle B
Keith Current
William L McNally
Rich Lightfoot
Tutor the Barbarian
Aubrey G.
Nukebert
Sam W.
Aaron Knows DIY
G. Salazar
David B.
Marc B.
Richard B.
Ben. K
Make Things
00:00 Intro
00:19 What is a miter joint?
02:22 Why do miters fail?
03:24 How to get precision
07:35 How to add strength
10:41 Bonus clamping 2 methods
13:02 Thank you!
#MakeThings
