Modular Trailer
Use 4x4 angle for an 8x10 frame, low lying:
https://docs.google.com/presentation/d/1KJ51JN8A2wGoPslJdD1YV8mUFRKDtBHAZ_gRFWNdWuk/edit
Use 4x4 angle for an 8x10 frame, low lying:
https://docs.google.com/presentation/d/1KJ51JN8A2wGoPslJdD1YV8mUFRKDtBHAZ_gRFWNdWuk/edit