Tag Archive for: drive-in

Misapplied Drive-In and Drive-Thru Racks

Drive-in and drive-thru racks are popular dense storage solutions for companies looking to increase storage capacity within their facilities. Typically, these solutions are best applied in environments with a high volume of pallets stored on hand with a low number of SKUs.

The two racking styles are very similar in that they store pallets on rails, which are attached to uprights that create deep aisles of storage that allow forklifts to drive in or through the system to select or drop off a pallet. However, they differ in that drive-in racking requires the forklift to back out of the aisle (making ideal for last-in, first-out (LIFO) inventory management). In contrast, drive-through racking allows the driver to enter through either end of the system (making some people think it ideal for first-in, first-out inventory management). Operationally though, using drive-through racking for FIFO inventory often creates lots of additional product touches and adds cost. Drive-through racking also requires an aisle for travel on both sides of the system, making drive-in racking a higher-density option.

In suitable environments, these styles of racking can undoubtedly be beneficial. They can help support storage density efforts with a relatively low initial cost. In fact, in an environment where steel prices are not as volatile as they are now, drive-in and drive-thru racks are typically around a third of the price-per-position as other dense storage solutions like pushback rack, pallet flow, or the use of pallet shuttles. After all, there are no moving parts and no mechanical components in drive-in and drive-through racking; it is static.

But in the wrong environment, drive-in and drive-thru racks can lead to unforeseen expenses, slower fulfillment times, and poor utilization of cubic storage space. Ironically, these negative consequences were likely all the problems the evaluator was attempting to solve in the first place.

How does that happen? To start, evaluators are looking at the wrong bottom line.

Because drive-in and drive-thru racking is the lowest-cost dense storage racking system, a decision-maker will look at and their area and determine that they can fit the same number of bays of drive-in as, say, pallet flow. However, because the cost of the former is roughly 30-40% of the latter, they will default to choosing the cheaper option.

That low initial cost looks good to the decision-makers looking at a project as an open-and-shut project but not part of an overall operational strategy. While that initial bottom-line number is appealing, they may not be considering that cost-based decision may end up with a wrong application or poorly utilized storage system. Operational costs can soar when drive-in and drive-thru racks are misapplied. Dense storage design is better managed with a long-term approach with a more strategically applied solution.

The trick with drive-in and drive-thru racks: you want to keep utilization high, so you need to keep the same product in each lane – front to back and the top. Ideally, you want more than one lane worth of product for utilization purposes – filling the entire depth and height of the storage system – for each SKU being stored. But what happens when orders change and SKU proliferation hits? Now, you may be storing fewer of a particular product, a greater variety, and those dedicated lanes start getting SKUs mixed. Now you may have to turn, rotate, move-and-return other pallets to get a pallet you need to select, adding several more touches-per-pick and increasing your operational costs in the process.

Now, consider that drive-in and drive-thru racking is a popular storage solution for the food-and-beverage industry, where temperature-controlled storage is frequent. You have to figure in lot codes, date codes, and other requirements to maintain the product’s integrity. It can be a real challenge to manage these inefficiencies while keeping utilization high, operational costs low, and discipline to those codes.

How Do I Know if I Have a Utilization Problem with My Drive-In or Drive-Thru Racking?

The challenge with knowing whether your drive-in or drive-thru racking is operating at its fullest potential – or if another strategy should be considered – lies in the fact that you need to be looking for that magic utilization number to know if it is truly working for your operations (or not). If you are not actively seeking to maximize your space, you may not notice that you are underperforming.

However, if you have a significant share of drive-in or drive-through racks and are finding yourself in need of expediting your orders, or you are looking at adding dense storage solutions, give us a call first.

Misapplications of drive-in and drive-thru racking can cause many unforeseen expenses and slow down pick processes intended initially for efficiency. Our team of experts knows how crucial operational flow is to a company’s long-term bottom line. We know the challenges associated with rising operational costs-per-pick and have the experience to design and provide solutions uniquely designed to meet your needs, now and with an eye toward future growth.

Dense Storage Solution

Warehouse managers are frequently challenged to find efficiencies in their processes, their workflows, and, most often, their storage capabilities. With dense storage solutions, warehouses managers get a solution for their problems in storage capacity by storing more product in less space.

However, finding the right storage solution may not always be as simple as asking, “Which mix of storage mediums gives me the best capacity?”.

There are several other factors to consider, including inventory style, pick process, product dimensions, and much more.

Whether warehouse managers are looking to assess and redesign their layout, or they are designing a new facility layout altogether, dense storage solutions are certainly a viable option for increasing capacity. While the three most popular options – drive-in, pushback, and pallet flow – are relatively simple to understand, which is the best for your operation? The answer may be easier to solve than you may think.

Pushback Racking

Pushback rack is a storage system that incorporates a sliding device to feed several pallets into the same pick location by “pushing back” the previous pallet. The pallets then gravity feed back to the pick location in the rack as they are removed. This type of dense storage lends itself well to a Last-In, First Out (LIFO) inventory style because, quite literally, the last pallet placed in the pushback rack is the first pallet available for picking. Typically, pushback racks are capable of storing up to six pallets at each pick location.

Drive-In and Drive-Thru Racking

Drive-in racking and drive-through racking are both similar in that they are designed for forklift operators to enter the racking system for picking purposes. However, the difference is that drive-thru racking allows the operator to pass through the rack. Drive-in/drive-thru racking is a popular storage medium because it is typically less expensive than other dense storage options. However, these styles of racking also typically accommodate less storage capacity due to ‘honeycombing’ or storage utilization challenges.

Pallet Flow

Another high-density storage system that works with storing multiple pallets in a rack is pallet flow. Pallets are loaded into the back of the rack and picked at the front. Sometimes referred to as gravity flow or dynamic flow, this system uses a slight decline plane to store pallets, allowing them to “gravity flow” toward the picking position as pallets are removed.

Which Dense Storage Solution is Best for You?

Ultimately, there are many factors to consider when determining the best mix of storage solutions for your operations. Our experts are here to guide you and walk you through the process to determine what is the optimal use of storage mediums for your facility. We have years of experience with hundreds of projects involving dense storage solutions and the expertise to match you with the equipment you need to meet today’s demands, while also factoring in growth potential.

Contact us today to get started at 800.474.2001 and let us talk about your current needs and how we can help you plan for integrating dense storage solutions.

dense storage solutions

As a natural byproduct of business cycles, warehouses need to be flexible as storage needs ebb and flow. During periods of economic growth, these warehouses need to find ways to increase capacity without increasing the facility size. Similarly, as a result of new equipment or new inventory profiles, managers are often tasked with finding ways to decrease their layout’s footprint while maintaining (or even increasing) their storage capacity.

In our experience, many small-to-medium-sized companies are unfamiliar with the benefits of introducing dense storage solutions. Often, these companies are more familiar with a traditional, selective pallet rack option. Depending on your inventory, there may be an opportunity to install dense storage racking at this stage of a business cycle. But first, before you evaluate those options, managers should make sure they design the optimal plan.

Perform a Facility Design Assessment

Whatever steps you decide to take, know that your best bet for an optimal result may begin with a complete facility design assessment. Our experts can look at your layout and provide suggestions for the optimal design for your operation. Our experts can help you take the guesswork out of the process.

Integrate Smart Slotting Data

Primarily, Smart Slotting introduces a data-centric approach to optimizing your picking process. The tool measures operational and storage costs against the volume of your picking demand to give you the optimal inventory slotting strategy. However, this approach also improves your ability to increase capacity by moving SKUs to the best possible storage media types.

Are You Ready for Dense Storage Solutions?

If you have large quantities of pallets on hand for each item you are storing, dense storage may be right for you. Let’s look at the options:

  • Pushback: These are systems in which pallets are stored on a cart system on a slight pitch so pallets can gravity flow back down to the front location as pallets are removed from the system. Pushback racking is ideal for Last-In, First-Out (LIFO) inventory systems or First-In, First-Out (FIFO) inventory for larger lot/date code SKUs. These systems often utilize nested carts, which make the placement and retrieval of products easy.
  • Pallet FlowPallet flow rack is an ideal option for warehouses that operate on a First-In, First Out (FIFO) inventory system & have large quantities of pallets on hand per SKU. This flexible racking system can be designed to your desired depth to maximize your capacity & utilization of the storage system. Pallet flow systems are customizable and uniquely designed for your products.
  • Drive-In / Drive-Thru: Drive-In and Drive-Thru racking are similar in that they increase storage density & require fewer aisles in your warehouse. The main difference between the two is Drive-In racking is accessible via forklift by one end. Drive-Thru racking is accessible from both ends. Drive-In & Drive-Thru racking work best for operations with really large quantities of pallets on hand per item. The best applications have the same SKU stored from the ground to the top & from the front to the back in each lane of the storage system. To keep utilization high, it is also ideal to have multiple lanes of Drive-In or Drive-Thru racking filled with the same item.
  • Semi-Automated Deep Lane Systems: These systems allow an operator to utilize a semi-automated cart to move packages into dense storage racking. This system can integrate perfectly with both LIFO and FIFO inventory systems. Semi-automated deep lane systems are often 25-40 pallets deep & work great for operations that have lots of pallets on hand per SKU & relatively high throughput requirements. These modern systems are fast and extremely easy to use, also utilizing green technology to operate.

Whenever you are ready to talk about your dense storage solutions, we are here for you. To get started, contact us and we can look at your inventory profile and share how our design-based solutions can increase storage space and ultimately increase your warehouse’s capacity.

Picking Solutions Storage Solutions

At Storage Solutions, we pride ourselves on offering customers a solution for every square foot of their operation. We group our solutions into four main categories. These include simple, dense, picking and specialty solutions.

Simple Solutions

If you’re looking for a basic storage solution to get your facility organized, then our simple solutions might be just what you need. Our simple offerings include pallet rack, shelving, mezzanines and more. Within those categories, we offer a variety of styles, colors and capacities designed to work with whatever your needs may be.

Dense Solutions

Our dense solutions are perfect for anyone trying to decrease their facility footprint. Dense solutions include pushback, pallet flow, drive in/drive thru, and semi-automated deep lane storage. These solutions allow you to maximize your facility storage by using the space you have to the fullest.

Picking Solutions

If your main goal within your operation is to increase efficiency and decrease labor costs, then a picking solution may be the best option for you. These solutions include pick modules, carton flow, and light-duty cantilever. Any of these options will provide the boost you need in your day-to-day operations.

Specialty Solutions

Finally, we have our specialty solution offering. If you have a need that seems somewhat out of the ordinary, then one of our specialty solutions can probably help! These include tube rack, dual load, drive-in and cantilever. These solutions are perfect for high seismic areas, for storing oddly shaped items and more!

Regardless of what your needs are, we have a team of experts in place to analyze your operation and help. We love working with our customers to make sure all of their needs are being met. Learn more about our storage solutions here or contact us today to help you select the best possible solution for your facility.