Standard Pallet Racking
---Also called Selective, stow, single-access or conventional pallet racking. This is what most people will think of as your basic, static pallet racking.
---Yes - This is the "teardrop" style racking that you are probably thinking of (but "teardrop" racking can be used for, or converted into, high-density solutions too.)
---Standard racking is easier to buy used, because it is so common, and many facilities use compatible sizes and styles.
---This has upright frames, with beams going across to make a shelf. These can be used individually in single sections, or combined with other uprights and beams to form long, continuous rows/runs, of racking.
---This is easy to add or remove shelves, or changing the beams can quickly increase the weight capacity of a shelf.
---It's called selective racking because you can select any pallet on the rack at any time.
---Selective rack is less expensive, per pallet space, than any other form of racking. It is also the least dense.
High Density Pallet Racking -
---Height isn't the only option when you want to maximize your square footage...you can go more dense!
---High density racking will help you cram pallets into your warehouse, manufacturing facility or distribution center.
---Usually, it's biggest space-saver is the removal of aisles, but you will usually lose the access to pick any pallet at any time.
---Pallets will get 'buried', and can be retrieved on a "First In First Out"(FIFO) or "Last In First Out"(LIFO) basis.
---High density solutions are a must when your square, or cubic, footage is at a premium, like cold-storage.
---High density rack can be a cheaper alternative to expanding a building, or creating an add-on. When used wisely, you may be able to save the cost of another facility.
---The most common types are drive in, push back and pallet flow.
---Finding Used High density racking that fits your needs can be very difficult in many situations.
Rolled vs Structural
**The difference between the two is how they are made, which will give them different functional abilities.
**Rolled pallet racking, or "cold rolled", is puched and then rolled into it's shape.
**Structural racking, or "hot rolled" is made from hot steel into I-beams and C-channels.
Rolled pallet racking
---Rolled racking is the easiest to buy used, because different brands are often compatible.
---Often a boltless racking, the beams lock into the uprights
---Often in a "teardrop" style, because the beams often connect into upside-down teardrop shapes in the uprights.
---These "teardrops" are punched into the steel before it is shaped. Other shapes can be used to attach the beam to the upright, though, and not all teardrop are the same, or are compatible.
---It is cheaper and lighter than structural racking, but not as strong. The beams are easy to adjust, and usually a little clip is all the hardware you need. Often this clip is already attached to the beam.
---Rolled racking is simpler and easier, and is very well suited to small warehouses and back rooms of retail stores. It's great if you have a lot of different size pallets, or are changing your layout often.
---The shape of rolled form warehouse rack gives it most of it's strength. If you hit it with a forklift, or find a more creative way to maim steel, you will need to replace any damaged beams or uprights. Make sure you use upright protectors because, realistically, you will probably hit it with a forklift or heavy loaded pallet jack (dumbass)
Structural pallet racking
---Superior in many ways, structural racks do cost more, and can be harder to install and adjust beam height, but many warehouses simply can't do without it's strength.
---It is often designed into the "structure" of buildings, using the uprights to support the roof of the building.
---This won't be boltless like in many forms of rolled rack, the beams need to be bolted in.
---Unlike rolled racking, this can be damaged (to an extent) and still retain it's strength. It's also much harder to damage...no, this isn't a dare, I know your forklift driver will try anyways.
---This stronger steel will hold much better in coolers and freezers.
---It's height possibilities is another advantage that stems from it's strength. Though it can go very high, roll form simply can't be built as tall at structural. Height, like load capacity, can be the sole determining factor for many warehouses when choosing between "hot" or "cold" steel warehouse storage.
---The components, usually beams and uprights, are a little thinner, which can give you a little more space in your bay.
When choosing which type of warehouse racking or system you need, there are a lot of factors to consider; size of pallets, weight capacity needed, storage density, floor space, height, inventory accessibility and rotation, costs
Standard - Selective
Double Deep Rack
Used Pallet Racking
All used pallet racking dealers, info and sales
-Don't forget to check craigslist (website)
-See if there is a Racking liquidation
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This is a very clean, fast directory of local pallet racking dealers.