Built guitar cab with just maple plywood, tons of glue and epoxy. Sides are just one piece of wood that is bent. 10” 25 watt Jensen. Can be open or closed back. :
Ultimate Guide to Building a Guitar Cabinet (Steps, Diagrams, FAQ) - Guitar Gear Finder
Bill Fitzmaurice XF Guitar Cabinet Speaker Kit
DIY 1x12 guitar cabinet with Fender speaker and older Gibson combo 4 ohm | Reverb
1x12 Guitar Cabinet DIY Kit – Implicit Audio
DIY Speaker Cabinet
DIY Workshop: How to build a speaker cabinet (Part One) | Guitar.com | All Things Guitar