Kaufman Trailers Sliding Bolster Log trailers are what the logging industry has been expecting for many years but no other manufacture has been able to deliver. Hauling 3 bunks of randomly sized hardwood has never been so easy with the ability to slide the four center bolsters. The most highly touted feature of our 6 bolster trailer is its stability when fully loaded. The main frame is constructed with two 24” deep, high tensile, fully fabricated main beams and full depth cross-members at approximately 50” on center. By combining the strongest main beams in the industry with the strongest and most tightly spaced crossmembers, we have set a new standard for stability when hauling heavy timber. This trailer comes with a heavy duty, overslung 4-spring Hutchens H-9700 suspension. Watson single point or Ridewell air ride optional suspensions are available for a nominal up charge. Sliding bolsters are also designed so that they can easily be welded into place if needed. We also include all LED lighting, a sealed modular wiring harness, and our heavy duty square tubing style headache rack for added peace of mind in difficult situations.