Spacefile’s SDSm Manual system is a highly flexible, cost effective solution for light load applications. Efficient movement with a simple handle and moving left to right. Large 3” solid steel wheels enable easy maneuverability and heavy gauge steel welded carriages deliver maximum strength, rigidity and durability. Every component in our SDSm system undergoes rigorous testing before it leaves the factory. Spacefile’s SDS systems contain the highest quality components, setting a new industry benchmark for strength and durability.