When your rack case casters give up the ghost after months of load-ins, venue floors, and general tour abuse, you need this replacement caster board kit to get rolling again. This isn't about upgrading — it's about getting back to work when your current wheels are shot or the board underneath is cracked from one too many encounters with a loading dock.

The kit gives you a complete fresh start: a solid plywood board with four heavy-duty 4-inch casters already mounted and ready to bolt onto your case. Two of the casters lock down for stability during setup and performance, while the other two roll free for smooth transport. At 20" x 22.5", it fits standard rack case footprints, and the 6.5-inch height gives you clearance for power and signal cables running underneath.

This works for Seismic Audio cases and most standard rack case designs, though you'll need to drill new mounting holes to match your specific case. The hardware to attach it isn't included — you'll need the right screws or bolts for your case construction. It's a straightforward job with basic tools, but plan for some shop time to get it mounted properly.

Bottom line: If you're dealing with failed casters or a damaged caster board, this complete replacement kit gets your rack mobile again without the headache of sourcing individual parts or trying to repair what's beyond saving.

Technical Specifications

• Model: SA-Cboardww
• Caster Type: Four 4-inch casters (2 locking, 2 non-locking)
• Board Dimensions: 20" x 22.5" x 6.5"
• Weight: 15.6 lbs
• Compatibility: Fits Seismic Audio rack cases and standard designs
• Warranty: One year
• Recommended For: Mobile rack transport, touring setups, studio mobility

Frequently Asked Questions

Will this fit my rack case if it's not a Seismic Audio?

It's designed for standard rack case footprints, but measure your case bottom first. The 20" x 22.5" board works with most designs, but you'll likely need to drill new mounting holes to match your specific case's attachment points. The caster spacing is standard, so it's the mounting pattern you need to verify.

What hardware do I need to install this?

The kit doesn't include mounting hardware — you'll need screws or bolts appropriate for your case. Wood screws for wooden cases, machine screws with nuts for metal cases. Measure the thickness of your case bottom and the existing hole pattern (if any) to get the right hardware from your local hardware store.

Can these casters handle a fully loaded 12U or 16U rack?

Yes, the four heavy-duty casters are built for professional use with fully loaded cases. The locking casters keep your rack stable during shows and cable connections, while the non-locking ones ensure smooth rolling across different floor surfaces from concrete loading areas to carpeted venues.

Is it worth replacing the whole board instead of just fixing broken casters?

If multiple casters are failing or your current board is cracked or warped, a complete replacement often makes more sense than piecemeal repairs. You get perfectly aligned, matching casters that roll smoothly together, plus a fresh mounting surface that won't have stress cracks or stripped holes.