Grind Box - 8″ high x 16″ wide x 4′ long – SB Skate Ramps
DIY Grind Box. How I built this 8 foot mobile grind box. - YouTube
Building a Grind Box for Skateboarding or BMX
Pre-Assembled Grind Boxes | OC Ramps
Rankin/Bass-historian: Skateboard Grind box with rail for sale! Loacal Pickup only (South suburb of Chicago, IL) Weighs over 100 pounds and ready to go!
South Bay Skate Co - Skateboard Grind box - 4' & 6' Box Lengths – South Bay Board Co.
8ft Skateboard Grind Box by OC Ramps – SkateBoardRails