The 5-inch wheel is the versatile middle of the light-to-medium range — tall enough to roll over cords, thresholds, and minor floor transitions, small enough to keep equipment compact and the deck low. Across phenolic, polyurethane, and rubber treads, the 5-inch diameter covers a huge span of carts, fixtures, and light equipment.
A 5-inch wheel clears the everyday obstacles a 3 or 4 inch wheel catches on — power cords, door thresholds, floor-tile transitions, small debris — without the weight, cost, or deck height of a 6 or 8 inch wheel. It's the default size for display fixtures, service carts, light equipment dollies, and institutional carts: enough roll-over ability for real-world floors, compact enough for tight spaces.
The 5-inch diameter comes in tread widths from 1 inch (light, narrow) to 2 inches (medium-duty), in phenolic, polyurethane, and rubber. Narrow 5x1 for light display and service carts; 5x1-1/4 and 5x2 for heavier equipment. Phenolic for hard dry floors and low rolling resistance, polyurethane for floor protection and quiet roll, rubber for the softest, most cushioned ride.
