What is Safety Stock? A Guide on What It Is & How To Calculate It

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Breathtaking design for home living.

What is Safety Stock? A Guide On What It Is & How To Calculate It

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Breathtaking design for home living.

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We’re not just another order fulfilment company. We’re the industry leader that delivers the highest quality B2B and B2C services to supercharge your business. If you’re looking to scale your business with world-class services, we’re here for you

A guide to safety stock; an introduction…

Safety Stock; An introduction

From time to time you may find yourself running out of stock. However, this can obviously have a negative impact and may affect your overall customer satisfaction, business reputation, costs, and sales. So, its important to have a solid strategy in place go minimise the chances of this happening, especially if you have certain SKUs that are highly popular and sought after.

Homeware; Exploring the growing market…

A Guide on Safety Stock; An Introduction…

From time to time you may find yourself running out of stock. However, this can obviously have a negative impact and may affect your overall customer satisfaction, business reputation, costs, and sales. So, its important to have a solid strategy in place go minimise the chances of this happening, especially if you have certain SKUs that are highly popular and sought after.

Homeware; Exploring the growing market…

What is safety stock?

In a nutshell, safety stock refers to ‘back up’ units that you have in place should you see an unexpected rise in sales for a particular product. The purpose of having safety stock in place is to ensure that stockouts are avoided, as this can minimise and eliminate the chances of missing out on sale opportunities, or having a poor customer satisfaction level.

Homeware; Exploring the growing market…

Why is it important to have safety stock?

As mentioned, the main reason safety stock is important is because you don’t want to run out of stock. Lets say you post a video of your products on a social media platform such as TikTok, for example. Your video may go viral and the orders begin to roll in, but you weren’t expecting to receive as many orders as you have so you don’t have enough stock in place.

Your options become limited. You can place them on backorder, or cancel them completely, but neither are ideal and you will find this has a negative impact on your business. Sometimes customers don’t want to wait until it is back in stock, as a lot of the current consumerism habits are based on impulsivity.

Lets explore some more reasons as to why safety stock is important…

What is safety stock?

In a nutshell, safety stock refers to ‘back up’ units that you have in place should you see an unexpected rise in sales for a particular product. The purpose of having safety stock in place is to ensure that stockouts are avoided, as this can minimise and eliminate the chances of missing out on sale opportunities, or having a poor customer satisfaction level.

What is Kitting and Assembly?

Kitting and assembly is a fulfilment service that is offered by most 3PL companies. It is a process that involves compiling, or assembling different parts and components together to create one final product, bundle, or kit. It is worth noting that this then becomes one singular SKU rather than multiple.

Kitting and assembly gives you the chance to offer customised bundles, kits, and products, meaning that you can drive more sales through discounts, promotions, etc.

Why is it important to have safety stock?

Why is it important to have safety stock?

As mentioned, the main reason safety stock is important is because you don’t want to run out of stock. Lets say you post a video of your products on a social media platform such as TikTok, for example. Your video may go viral and the orders begin to roll in, but you weren’t expecting to receive as many orders as you have so you don’t have enough stock in place.

Your options become limited. You can place them on backorder, or cancel them completely, but neither are ideal and you will find this has a negative impact on your business. Sometimes customers don’t want to wait until it is back in stock, as a lot of the current consumerism habits are based on impulsivity.

Lets explore some more reasons as to why safety stock is important…

Navigate Peak periods easily

As mentioned, a sudden surge in product interest, or seasonal peaks (such as Black Friday Christmas), or promotional will obviously have an impact on the volume of orders you receive. Having safety stock in place will ensure that you don’t miss out on important revenue generated from your influx of sales.

Supply chain disruptions

Regardless of how reliable each component of your supply chain is, unforeseen issues still arise from time to time. An issue with your supplier or manufacturer might put a halt or delay on your order/shipment, meaning you need to fall back on your safety stock for the time being to ensure you aren’t missing out on sales.

Market Price Increases

The price of things are constantly on the rise, sometimes prices can rise unexpectedly and drastically though. Certain raw materials can sometimes be prone to volatility, which means the price for re-supply might change quite drastically each time you place your order with the supplier. Having safety stock helps you avoid having to re-supply during times when there is a sudden spike in prices, allowing you to place your order at a later date when the prices have hopefully dropped again.

Improved Inventory Management

Having safety stock in place helps improve your overall inventory management and forecasting accuracy. If you are having to dip into your safety stock often then it is a clear indication you should have more inventory on hand as there is a clear demand for your products. It will help you to calculate your re-order level more accurately too.

Navigate Peak periods easily

As mentioned, a sudden surge in product interest, or seasonal peaks (such as Black Friday Christmas), or promotional will obviously have an impact on the volume of orders you receive. Having safety stock in place will ensure that you don’t miss out on important revenue generated from your influx of sales.

Supply chain disruptions

Regardless of how reliable each component of your supply chain is, unforeseen issues still arise from time to time. An issue with your supplier or manufacturer might put a halt or delay on your order/shipment, meaning you need to fall back on your safety stock for the time being to ensure you aren’t missing out on sales.

Market Price Increases

The price of things are constantly on the rise, sometimes prices can rise unexpectedly and drastically though. Certain raw materials can sometimes be prone to volatility, which means the price for re-supply might change quite drastically each time you place your order with the supplier. Having safety stock helps you avoid having to re-supply during times when there is a sudden spike in prices, allowing you to place your order at a later date when the prices have hopefully dropped again.

Improved Inventory Management

Having safety stock in place helps improve your overall inventory management and forecasting accuracy. If you are having to dip into your safety stock often then it is a clear indication you should have more inventory on hand as there is a clear demand for your products. It will help you to calculate your re-order level more accurately too.

Homeware; Exploring the growing market…

How to calculate your safety stock…

Although there are different ways of calculating your safety stock, the most common method of calculation is as follows;

Safety stock = (maximum daily sales x maximum lead times in days) – (average daily sales x average lead times in days)

Obtaining the figures you need shouldn’t be too difficult if you have been collecting your sales data accurately, but of course if you haven’t then you may have some issues accurately calculating this.

For your maximum daily sales, look at how many sales you receive per day across a certain period of time, whether that’s a month, quarter, etc. Then simply extract the highest number.

For maximum lead times in days, look at your shipments for the same period as your maximum daily sales and take the shipment that took the longest to arrive at your facility or warehouse.

To calculate your average daily sales just simply add up the number of sales over the period and divide it by the number of days in the period. Follow the same process for calculating the average lead time.

Homeware; Exploring the growing market…

Safety Stock; Making informed decisions for re-order levels…

Re-order levels refer to the point at which you decide to re-order a certain SKU. Re-order levels vary and are completely dependent on the amount of sales you receive for each SKU, their demand, and how frequently you replenish the stock.

The amount of times you have to dip into safety stock will give you a good indication as to how often you need to re-order stock before you have to use the safety stock.

Homeware; Exploring the growing market…

Safety Stock; things to avoid…

Of course having the right level of safety stock is crucial, but there are still some things to avoid when it comes to your safety stock as you can sometimes end up doing more harm than good. So lets explore some things to avoid when it comes to safety stock…

How to calculate your safety stock levels…

Although there are different ways of calculating your safety stock, the most common method of calculation is as follows;

Safety stock = (maximum daily sales x maximum lead times in days) – (average daily sales x average lead times in days)

Obtaining the figures you need shouldn’t be too difficult if you have been collecting your sales data accurately, but of course if you haven’t then you may have some issues accurately calculating this.

For your maximum daily sales, look at how many sales you receive per day across a certain period of time, whether that’s a month, quarter, etc. Then simply extract the highest number.

For maximum lead times in days, look at your shipments for the same period as your maximum daily sales and take the shipment that took the longest to arrive at your facility or warehouse.

To calculate your average daily sales just simply add up the number of sales over the period and divide it by the number of days in the period. Follow the same process for calculating the average lead time.

What is Kitting and Assembly?

Kitting and assembly is a fulfilment service that is offered by most 3PL companies. It is a process that involves compiling, or assembling different parts and components together to create one final product, bundle, or kit. It is worth noting that this then becomes one singular SKU rather than multiple.

Kitting and assembly gives you the chance to offer customised bundles, kits, and products, meaning that you can drive more sales through discounts, promotions, etc.

Safety Stock; Making informed decisions for re-order levels…

Safety Stock; Making informed decisions for re-order levels…

Re-order levels refer to the point at which you decide to re-order a certain SKU. Re-order levels vary and are completely dependent on the amount of sales you receive for each SKU, their demand, and how frequently you replenish the stock.

The amount of times you have to dip into safety stock will give you a good indication as to how often you need to re-order stock before you have to use the safety stock.

Safety Stock; Things to avoid…

Of course having the right level of safety stock is crucial, but there are still some things to avoid when it comes to your safety stock as you can sometimes end up doing more harm than good. So lets explore some things to avoid when it comes to safety stock…

What is Kitting and Assembly?

Kitting and assembly is a fulfilment service that is offered by most 3PL companies. It is a process that involves compiling, or assembling different parts and components together to create one final product, bundle, or kit. It is worth noting that this then becomes one singular SKU rather than multiple.

Kitting and assembly gives you the chance to offer customised bundles, kits, and products, meaning that you can drive more sales through discounts, promotions, etc.

Too Much Safety Stock…

Can you ever have too much safety stock? The answer is yes you can.

You don’t want to constantly overstock as you may end up paying excess storage costs if your stock doesn’t move as quickly as anticipated.

If you have stock with expiry dates in and it doesn’t get sold and shipped fast enough, you will end up paying disposal fees which is not ideal either. So balance is key when it comes to safety stock levels.

Inaccuracies, being unprepared

Safety stock calculations are based off historical sales data. If you’re just starting out, you probably don’t have enough (or any) historical sales data which can lead to big inaccuracies when calculating your safety stock.

Not only this, safety stock calculations cannot take supply chain issues into account, or a sudden surge in demand. So during busy times you may want to inflate lead times to get a more accurate calculation of when and how much you should be ordering.

Failing to regularly review safety stock…

You may do a calculation once and assume that you will only ever need to do it that one time, but if you’re a growing business you will obviously naturally increase sales, meaning your safety stock levels will likely need to increase too. The calculation you make during your first year of trading is highly likely to be different to the calculation made during your second year of trading.

So, it is important to regularly review your data and cross reference this with any calculations you have made previously.

Inaccurate historical data…

As mentioned, inaccuracies in your data will cause an overall inaccurate calculation. The calculation can only be as good as the data. Using outdated tools to track and formulate data is going to your worst enemy.

Investing in high quality, accurate inventory management tools is your best chance at gaining full accuracy in your calculations as they can help to provide up to data information which will allow you to make fully informed decisions regarding your safety stock, and business overall.

Too Much Safety Stock…

Can you ever have too much safety stock? The answer is yes you can.

You don’t want to constantly overstock as you may end up paying excess storage costs if your stock doesn’t move as quickly as anticipated.

If you have stock with expiry dates in and it doesn’t get sold and shipped fast enough, you will end up paying disposal fees which is not ideal either. So balance is key when it comes to safety stock levels.

Inaccuracies, being unprepared

Safety stock calculations are based off historical sales data. If you’re just starting out, you probably don’t have enough (or any) historical sales data which can lead to big inaccuracies when calculating your safety stock.

Not only this, safety stock calculations cannot take supply chain issues into account, or a sudden surge in demand. So during busy times you may want to inflate lead times to get a more accurate calculation of when and how much you should be ordering.

Failing to regularly review safety stock…

You may do a calculation once and assume that you will only ever need to do it that one time, but if you’re a growing business you will obviously naturally increase sales, meaning your safety stock levels will likely need to increase too. The calculation you make during your first year of trading is highly likely to be different to the calculation made during your second year of trading.

So, it is important to regularly review your data and cross reference this with any calculations you have made previously.

Inaccurate historical data…

As mentioned, inaccuracies in your data will cause an overall inaccurate calculation. The calculation can only be as good as the data. Using outdated tools to track and formulate data is going to your worst enemy.

Investing in high quality, accurate inventory management tools is your best chance at gaining full accuracy in your calculations as they can help to provide up to data information which will allow you to make fully informed decisions regarding your safety stock, and business overall.

Let TSP handle your fulfilment…

Let TSP handle your fulfilment…

At TSP, we are an award winning 3PL company with over 20 years of industry experience, specialising in B2B and Amazon Fulfilment, as well as B2C Fulfilment.

We use industry leading technology to help you accurately track your inventory levels, allowing you to make informed decisions regarding your business. Explore our full range of services below…

Homeware; Exploring the growing market…

Let TSP handle your fulfilment…

At TSP, we are an award winning 3PL company with over 20 years of industry experience, specialising in B2B and Amazon Fulfilment, as well as B2C Fulfilment.

We use industry leading technology to help you accurately track your inventory levels, allowing you to make informed decisions regarding your business. Explore our full range of services below…

80+ Global Fulfilment Centres

 

We integrate with over 150 platforms

 

18M Sq Ft of Global Warehouse Space

 

Our Range of Fulfilment Services

Storage, Pick and pack

At TSP we handle everything, starting with the storage, picking, and packing of your products.

We serve a range of markets so we have experience storing, picking, and packing a variety of different products, so we’ve got you covered regardless of what you sell.

Outsourcing your pick and pack with us will help free up your time, while also improving the entire process due to our highly experienced team of staff.

B2B and B2C Fulfilment

Regardless of whether you just do B2C or B2B, or a mixture of both, our team have the knowledge and resources required to successfully get your orders picked, packed, and shipped to your customer or chosen retailer.

While we handle your B2B and B2C fulfilment, you can focus on putting more time and money back into other areas of your business, such as your sales, marketing, and product development.

Shipping and logistics

After we pick and pack your orders, we ship them too.

We ensure you get better deals on shipping and packaging by letting you leverage our buying power, meaning you can save money and put it back into growing your business.

We also partner with a range of couriers, ensuring the needs of your business are being met through a diverse choice in reliable couriers.

Amazon FBM, FBA, SFP…

We are your one stop solution for all Amazon seller services, including FBA, FBM and SFP. With over 20 years of industry experience you can be assured that we are fully equipped to support you..

So regardless of what Amazon service you’re using, or if its a mix of all 3, we’ve got you covered. Check out our Amazon page for more information regarding our Amazon fulfilment services.

Inventory Management

Our cloud-based inventory management system, Mintsoft is easy to navigate and provides you with real time updates so you can always make informed decisions about your stock.

Returns Management

Returns are inevitable when it comes to your eCommerce business, but managing them correctly is a critical aspect on 3PL services. Here at TSP, we will handle the entire process from start to finish, helping you to main a high level of customer satisfaction.

Carbon Neutral Fulfilment

Are you a sustainable business? Looking to become more sustainable? Working with us means you can do your bit for the planet too, since we are a certified carbon neutral 3PL company.

Kitting, Bundling, and Assembly

Do you sell custom bundles or kits? We’ve got you covered. Our team is trained in kitting and bundle building, so you can be assured your customers will receive their orders in an accurate, timely manner.

Global Fulfilment

Do you require international shipping, or are you looking to expand into global markets? We’ve got you covered with our extensive network of couriers and global warehouses.

Explore our global fulfilment solutions page to see how we can help you dominate the global market, right from the heart of Newcastle.

Customs Bonded Warehouse

Here at TSP we are one of the very few Newcastle based order fulfilment companies with a dry bonded warehouse license.

Our network of freight forwarders means you can easily utilise the power of cross-border selling, allowing you to boost sales and drive growth.

Our Range of Fulfilment Services

Storage, Pick and pack

At TSP we handle everything, starting with the storage, picking, and packing of your products.

We serve a range of markets so we have experience storing, picking, and packing a variety of different products, so we’ve got you covered regardless of what you sell.

Outsourcing your pick and pack with us will help free up your time, while also improving the entire process due to our highly experienced team of staff.

B2B and B2C Fulfilment

Regardless of whether you just do B2C or B2B, or a mixture of both, our team have the knowledge and resources required to successfully get your orders picked, packed, and shipped to your customer or chosen retailer.

While we handle your B2B and B2C fulfilment, you can focus on putting more time and money back into other areas of your business, such as your sales, marketing, and product development.

Shipping and logistics

After we pick and pack your orders, we ship them too.

We ensure you get better deals on shipping and packaging by letting you leverage our buying power, meaning you can save money and put it back into growing your business.

We also partner with a range of couriers, ensuring the needs of your business are being met through a diverse choice in reliable couriers.

Amazon FBM, FBA, SFP…

We are your one stop solution for all Amazon seller services, including FBA, FBM and SFP. With over 20 years of industry experience you can be assured that we are fully equipped to support you..

So regardless of what Amazon service you’re using, or if its a mix of all 3, we’ve got you covered. Check out our Amazon page for more information regarding our Amazon fulfilment services.

Inventory Management

Our cloud-based inventory management system, Mintsoft is easy to navigate and provides you with real time updates so you can always make informed decisions about your stock.

Returns Management

Returns are inevitable when it comes to your eCommerce business, but managing them correctly is a critical aspect on 3PL services. Here at TSP, we will handle the entire process from start to finish, helping you to main a high level of customer satisfaction.

Carbon Neutral Fulfilment

Are you a sustainable business? Looking to become more sustainable? Working with us means you can do your bit for the planet too, since we are a certified carbon neutral 3PL company.

Kitting, Bundling, and Assembly

Do you sell custom bundles or kits? We’ve got you covered. Our team is trained in kitting and bundle building, so you can be assured your customers will receive their orders in an accurate, timely manner.

Global Fulfilment

Do you require international shipping, or are you looking to expand into global markets? We’ve got you covered with our extensive network of couriers and global warehouses.

Explore our global fulfilment solutions page to see how we can help you dominate the global market, right from the heart of Newcastle.

Customs Bonded Warehouse

Here at TSP we are one of the very few Newcastle based order fulfilment companies with a dry bonded warehouse license.

Our network of freight forwarders means you can easily utilise the power of cross-border selling, allowing you to boost sales and drive growth.

Collate your product details and connect your stores / market places

Link you into our preferred courier network

Take delivery of your stock, go live!



Collate your product details and connect your stores & marketplaces.



Link you into our preferred courier network.

Take delivery of your stock, go live!

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