How To: Triangle Corner Brace Gusset
The simple triangle, made from plywood, lumber or even plastic, is an incredibly versatile and handy item to have available for many offbeat uses from dividers to brackets to wheel bases for cabinets and rolling equipment. I made this guide to run off a bunch of cabinet wheel brackets and have since used it whenever I needed a quick brace or guide.
Kattermann's Handyman Blog 