It's a challenge trying to make all your stuff fit in an enclosed trailer efficiently. I'm pretty decent at building things so I fab'd up this four place rack. It's made out of 1/2 CDX plywood and uses 2x2 as spacers. The trimmers are 12 OC and the gaps for the blades are 2" wide. The blades do not rest on anything because that would be hard on the gear boxes. Everything is screwed together with course threaded sheetrock screws.