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Warehouse Performance Evaluation Methods

When planning your warehouse, determining your needs correctly affects your performance evaluation. 


Warehouse Performance Evaluation Methods

While planning your warehouse, you need to be able to measure the performance of your system, in this case, your warehouse, as in any other system, in order to determine your needs correctly or to see whether the warehouse you use is really enough for you. Performance measurement in warehouses should ideally be followed by a DMS (warehouse management system), but you need to introduce the values correctly for the DMS to decide what measures to take and what to prioritize.

There are different methods of performance evaluation in warehouses at several different tandances.


Performance measurements in storage are made in different ways. The most commonly used, traditional metrics relate to cost and efficiency. For the storage and distribution functions, the top performance metrics are calculated as follows.

Ratio of operating cost to sales: storage, distribution costs / sales

Operation efficiency: product in motion / (persons × hours)



In the financial performance measurement, the costs of each warehouse activity in the total firm budget should be subtracted. These costs are intended to assist in evaluating outsourced warehousing business proposals, budgeting, and measuring improvement. Tables similar to the following should be used in this method.

Warehouse Performance Chart_Akın Saka_DRS


In the financial performance measurement, the costs of each warehouse activity in the total firm budget should be subtracted. These costs are intended to assist in evaluating outsourced warehousing business proposals, budgeting, and measuring improvement. Tables similar to the following should be used in this method.



Efficiency is one of the most basic performance criteria in terms of warehouse, as it is in every field.
To define efficiency; We can say that it is the ratio of the final output produced by a source to the inputs required to reach this final output.
The efficiency and use of the workforce, space, goods handling services and warehouse management systems in the warehouse should be monitored. Total workforce productivity can be measured by the ratio of orders, number of items, or weight of shipments out of the warehouse to variables such as time spent in operation, time spent in warehouse management:

Labor efficiency: shipment quantity / (hours spent on warehouse management and operations × Man)
Storage density: inventory capacity / Total warehouse space

In addition to these, it should be followed in not benefiting from the location and volume in the warehouse.

Location utilization rate: number of occupied locations in the warehouse / all locations in the warehouse
Volumetric utilization rate: volume of occupied positions in the warehouse / total volume of the warehouse


In terms of quality criteria, there are four main warehouse quality performance criteria; It is calculated as follows, two for the transportation of incoming products and two for the transportation of outgoing products:

Placement accuracy: number of items placed correctly on the shelves / all items placed on the shelves
Inventory accuracy: consistent number of locations / all locations expected to have products in it
Aggregation accuracy: error-free collected order items / all collected order items
Shipping accuracy: error-free shipped order items / all orders shipped


We can express the cycle time as the time from the beginning to the end of the work for the completion of any process.

Two key performance metrics can be used regarding cycle time for the two core processes in warehouses, namely shelving and order picking;

Provincek Entry to Stock Cycle Time: The time from the receipt of a product's invoice to the warehouse until that product is ready for collection

Order Cycle Time: The time elapsed from the time an order is placed in the warehouse (following the picking, packaging processes) until that order is ready for shipment.

You can determine your warehouse needs and what you need to do in your warehouse by applying all these things in your existing warehouse. You can also use it as a method to evaluate and guide you together with cyclical criteria.

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When Investing in Curtain Wall Warehouses

Warehouse Performance Evaluation Methods

The cladding rack system will not only meet the need for shelves, but also eliminate the need for the roof and exterior for the warehouse. 


What is Curtain Wall Warehouse?

In case of a need for a warehouse-only building, the warehouse shelf system is designed as a single carrier without investing in any building, and it is a shelf system obtained by mounting facade purlin, facade panel, roof truss, roof purlin and roof panels on the rack system. is called.

The cladding rack system will not only meet the need for shelves, but also eliminate the need for the roof and exterior for the warehouse. Thus, it allows to install shelving systems without a building. 

Giydirme cephe depo raf sistemi inşaat yatırımı yapmayı gerektirmez, bu nedenle bina içine rafları yerleştirme yöntemi ile yapılan depolara göre %18 ile %27 arasında fiyat avantajı sağlamaktadır.

In the curtain wall system, the rack legs serve as a column, so this system prevents the loss of space arising from the columns and beams required for the building, at the same time, the curtain wall storage rack system provides the maximum benefit from the space to be used, and saves space, as the warehouse shelves can be made at the desired height. prevents. Today, a facade cladding warehouse rack system that reaches 40 meters in height can be made.

Wardrobe rack system warehouses are generally planned by contractor companies on a turnkey basis. In addition, since this system is in a disassembled structure, it is very advantageous compared to other building types in cases such as moving the warehouse to another place or expanding / contracting where it is.

The curtain wall storage rack system allows all kinds of product groups to be stacked in accordance with any storage method and stored under desired conditions. If we classify them according to the standards

DRESS + AS/RS (CLASS100-200)
It is used in projects where full automation is required, when the reach of manual stackers is not enough.
It is a system that is effective especially in warehouses where pallet speeds are high when 15m and above height is used, and is used very intensively with curtain wall warehouses because it is very restrictive and difficult to implement such a system in a finished closed building.

Applied when using manual narrow aisle stackers.
The height can be reached up to 16.50 m under the scissors, which is the highest height that can be reached by using a manual machine, but when the space utilization efficiency is considered as the investment cost per pallet, it is an economical system; Approximate costs: around 80-100 $/pallet
Area utilization rates are: 3-3.5 pallets/m2.

Space utilization efficiency is very low in this type of warehouses, which is the most economical dressing rack system.
It is generally preferred in cold and frozen warehouses.
The time to commission the warehouse is very short; about 30-60 days.
It is a rack system with a high investment cost per pallet; approximate costs: 90-110$/pallet.
The area utilization rate is : 1.5 pallets/m2

Although it is not a separate shelf class according to Fem standards, it is a stacking method that can be used together with manual stacker or stacker crane machines in all the above-mentioned classes, depending on pallet entry and exit speeds.
Manual or automatic operation options can be selected according to pallet entry and exit speed and investment budget.
It is a very effective choice in cold/frozen storage investments.

Curtain Wall Warehouse Blog | UCGE DRS
Dressing warehouse system

You have kept your investment on hold. You have examined the curtain wall warehouses, but you still have not decided.
In that case Below is the summary list of benefits I suggest you reconsider.
By making curtain wall warehouse shelf system;

  • Maximum storage in minimum space
  • A more economical investment
  • Faster build(warehouse) build time
  • Warehouse commissioning in less time
  • Since it is a modular system, the system can be extended in case of additional need.
  • More efficient use of existing forklift trucks with the growth of the system in the same area.

In this system, when the pallet 80x120x230 is accepted as a standard;

  1. In the system using forklift: 1.5 pallets/m2
  2. In the system using reach truck: 2,5 pallets/m2
  3. In the system using VNA: 3,5 pallets/m2
  4. In the system using Vna+shuttle: 4,5 pallets/m2
  5. In the system using as/rs: 4,5 + pallet/m2

It is possible to stock up.

Compared to steel buildings, which are much more economical than reinforced concrete buildings, the material usage rates are quite advantageous as seen below;

Approximate usage amounts of steel building basic elements,

  • Column+cross: 35-40 kg/m2
  • Facade purlin: 12-15 kg/m2
  • Scissors + purlin: 20-25 kg/m2
  • General average: 60-65 kg/m2

Usage amounts when the dressing shelf system is made,

  • Column system: all savings
  • Cephe aşık :%10-20 tasarruf
  • Makas+aşık :%10-20 tasarruf
  • Genel ortalama :%30-40 tasarruf sağlanmaktadır.

I think you now have the knowledge to make the right decision.

All you have to do after this stage is to decide on the right power to undertake your project, trust and watch your magnificent building rise.

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Automatic Stacking and Access Systems

Warehouse Performance Evaluation Methods


Automatic, stacking and access systems are robotic systems that stack a load (pallet, basket or parcel) to pre-defined addresses and can deliver the right product in the shortest time possible, when requested.


Warehousing Concept in Logistics Industry

The concept of warehouse, which is one of the sine qua non of logistics, has been used and understood in the sense of the place where the goods will be placed and waited for a long time since the past. However, the main purpose of logistics today is to transport the goods from raw materials to production and to consumption in the fastest and most economical way, without interrupting the movement of goods.

For this reason, instead of the term warehouse today;

Consolidation center for places where products coming from different exit points are stocked for a short time,

For the places where the products are re-handled and classified according to the addresses to which they will be transported, definitions such as Distribution Center have been started.

The volumes where both services are provided are called 'logistics centre'.

One of the main purposes in logistics centers is the maximization of the volume used. Increasing land costs oblige to build warehouses using height. And by stocking maximum products in these high volumes, it is aimed to reduce the storage costs to the minimum possible values per unit product. 

In addition to increasing the volume, the use of the equipment used inside for a longer time and with high efficiency is also a factor that reduces the cost. Similarly, reducing the number of manpower working inside means increasing the amount of material handled per unit time, which has an impact on the unit cost. 

All of these can only be achieved by increasing the shelf height.

The need for high shelves has brought reach trucks instead of forklifts, and tarret trucks instead of reach trucks. However, with these applications, a maximum height of 15-16 meters can be reached. And from time to time it may be insufficient at these heights. Another issue in high-ceiling warehouses, which will increase efficiency in logistics, is to reduce the forklift passage distance between shelves. In this way, more product can be put into the unit volume.

Another system that has become widespread in the last thirty years in order to achieve maximum efficiency is automatic storage systems that operate in narrower shelf spaces and do not contain people. These robot handling systems, which work in volumes built at a height of 25-40 meters, work very efficiently in warehouses that have valuable space and do not want to lose space for stocking, have to work at high speed and have a wide variety of products. These systems work automatically without human intervention under the control of MFC controlling the warehouse and WMS software that directs the entire system at the top.

In these systems, which we call the fully automatic storage system, the loads unloaded from the door are left at the door of the warehouse with conveyors and elevators, and the robot handler picks up the message from the place where the pallet was left, reads the barcode on it and carries it to the appropriate address. It is a system whose movement is faster than a normal person can use, does not require manpower, does not make mistakes, has high reliability and has a low probability of failure.

Since the shelf spaces are very narrow in fully automatic warehouses, such units are usually built as a clad warehouse. The construction continues by assembling the shelves on a solid base and placing the roof on these shelves. Finally, the side and front walls are mounted on this shelf construction. Ramps and doors are placed. Thus, a closed volume is created. It is a system that accelerates the construction and ensures maximum use of the volume. The return on investment is shorter than conventional systems.

Fully automatic warehouses can be applied in systems that enter pallets and exit pallets, as well as Parcel etc. It is suitable for storage and can even be adapted in systems that provide Pallet entry and Parcel exit when necessary.


Multipal automated storage system

The main advantages of automated warehouse applications are:


  1. Reduction of storage areas: Thanks to this system, which allows storage on higher shelves by requiring less aisle space, the amount of product stored in a unit area increases approximately 2.5 times compared to traditional storage methods.
  1. Reduction of costs: Since stacking and unloading operations are fully automated with this system, operators of stacking equipment used in conventional warehouses are not needed. With the decrease in the number of equipment and operators, the risks of occupational accidents naturally decrease.
  1. Reduction of loading and unloading operation times: Geleneksel sistemlerde kullanılan ekipmanların performanslarına kıyasla ürünlerin rafa yerleştirilmesi ya da raftan indirilmesi için ihtiyaç duyulan süreler bu sistemle yaklaşık %80 oranında azalmaktadır.
  1. Reducing the risk of error to zero: Sistem kurgusu yapıldıktan sonra, operasyon insan iradesinden doğabilecek risk ve hatalardan tamamen arındırılmaktadır ve bu sayede hem envanter doğruluğu hem de sipariş hazırlama doğruluk oranları %100 seviyelerine ulaşmaktadır.
  1. Address optimization: The system brings the products, which are very active with address changes, to the addresses close to the exit, in order for the products to be collected faster by adhering to the defined algorithms in spare times.
Automatic Pallet Warehouse Racking System

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