Wachsen Rolling Bench Extender Kit - 4ft Width

Box A is the Extender Kit — the repeating section added to an existing bench run to increase total length. It connects to and extends the rolling mechanism already established by a Cornerstone Kit. Box B is the Cornerstone Kit — the foundational section that contains the complete rolling base frame and control wheel mechanism, and is required as the starting point for any bench run built from individual kits.

If you are adding length to an existing pre-configured Wachsen bench, you need Box A. If you are building a new standalone bench run from kits rather than a pre-configured system, start with Box B and add Box A sections to reach your target length.

Each kit covers 6.5ft of bench length. Divide your total target length by 6.5 to get your total kit count — you will need one Box B Cornerstone Kit plus as many Box A Extender Kits as required to reach the remaining length. For example, a 26ft bench run would require one Box B and three Box A sections.

Note that Wachsen recommends a maximum practical bench length of 50–60ft for optimal rolling performance. For longer runs, consult your facility layout before ordering.

Yes — the extender kits use the same modular architecture and hardware specifications as the Wachsen Professional Rolling Bench - 4' Width. Box A Extender Kits can be added directly to an existing bench run to increase its length without disassembling the current installation. Ensure ground anchoring is re-evaluated after extending, as Wachsen strongly recommends anchoring for all permanent bench installations.

The extender kit frame is compatible with Wachsen trellis support add-ons, which integrate directly with the bench structure to provide vertical canopy support. For securing trellis netting to the frame, we recommend using Wachsen Bud Sorter blue trellis clips. Trellis options are available separately — contact us for current availability and compatibility with your bench configuration.

Yes — the Wachsen food-grade ABS modular tray sections for the 4ft bench (Front Section and End Section w/ Drain) are fully compatible with extender kit sections. When extending an existing tray-equipped bench, add additional Front Sections to cover the new length and relocate the End Section w/ Drain to the new terminus. See the Wachsen Rolling Bench Tray — 4ft x 38in listing for tray section options.