| Click on a Graph Heading for More Information | Block Storage | Tier Rack and Stacking Frames | Standard Pallet Rack | Double Deep or Two Deep | Bridge Across | Drive-In | Drive-Through | Gravity Flow | Push Back | Cantilever |
|---|---|---|---|---|---|---|---|---|---|---|
| Utilization factor, % | 60 | 60 | 85 | 80 | 85 | 66 | 66 | 90 | 66 | 85 |
| Building footprint | small | small | large | medium | none | small | small | small | medium | large |
| Effectiveness of space usage | very | very good | fair | good | good | very good | very good | excellent | good | fair |
| Accessibility to unit loads | poor | poor | excellent | fair | excellent | poor | poor | fair | fair | excellent |
| Probability of damage | high | low | low | low | low | medium | medium | low | medium | low |
| Sprinkler requirement 2 | ceiling | ceiling | ceiling, in-rack | ceiling, in-rack | ceiling | ceiling, in-rack | ceiling, in-rack | ceiling, in-rack | ceiling, in-rack | ceiling, in-rack |
| Unit load stability | poor | fair | good | good | good | good | good | good | good | good |
| Rotation of unit loads | LIFO | LIFO | FIFO | LIFO | FIFO | LIFO | FIFO 3 LIFO 4 | FIFO | LIFO | FIFO |
| Number of aisles | few | few | many | medium | none | few | few | few | few | high |
| Security | poor | poor | good | good | good | good | good | good | good | good |
| Unit loads deep/opening | 8-10 | 8-10 | 1 | 2 | 1 | 8-10 | 8-10 | 3-20 | 3 | 1 |
| Storage density | high | high | low | medium | varies | high | high | high | good | low |
| Sku openings/aisle | 1 | 1 | 2 | 2 | 2 | 1/vertical lane | 1/vertical lane | 1/lane opening | 1/lane opening | 1 -3 |
| Throughput volume | high | medium | high | medium | medium | medium | medium | high | medium | medium |
| Stacking height, ft | 20 - 25 | 20 - 25 | 20 - 40 | 20 - 40 | 20 - 25 | 20 - 30 | 20 - 30 | 20 - 30 | 20 - 30 | 20 - 40 |
| Pick positions | 1 high | 1 - 2 high | 1 -2 high | 1 - 2 high | not feasible | 1 high | 1 high | 1 high | 1 - 2 high | 1 -2 high |
| Types of pallet | all | captive | all | all | all | varies | varies | captive | captive | none |
| Retrieval equipment | W, N | W, N | W, N, VNA | N | W, N | W, N | W, N | W, N | W, N | VNA |
| Number of unit loads/sku | high | high | variable | 2 or more | 2/opening | high | high | high | 2 or more | varies |
Supplier of New and Used Rack
New
Comparing Storage Systems
Many factors influence the ability to meet storage objectives. The type of system used, the unit load dimensions, the type of pallet board, the warehouses dimensions, ceiling height, fire protection and seismic conditions.
Refer to our Specification Sheet to determine your storage system requirements. The storage objectives are defined according to the unit load, throughput, accessibility requirements, product rotation requirement, storage density per aisle, the most storage unit (sku) openings per aisle, and the best financial value.
There are numerous systems available to satisfy storage objectives. Once the objectives and the system’s design have been clearly defined, selection of the appropriate system can begin. The table provides a list of each storage system’s advantages and characteristics.
Refer to our Specification Sheet to determine your storage system requirements. The storage objectives are defined according to the unit load, throughput, accessibility requirements, product rotation requirement, storage density per aisle, the most storage unit (sku) openings per aisle, and the best financial value.
There are numerous systems available to satisfy storage objectives. Once the objectives and the system’s design have been clearly defined, selection of the appropriate system can begin. The table provides a list of each storage system’s advantages and characteristics.
