Building a fashion range runs from an initial concept to a delivered order, and the stages exist to organise the process so errors, reworked styles and launch delays get caught early. Things still go wrong. Knowing the sequence is what lets you manage it when they do.
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Before You Build a Fashion Range: Who Owns What
Your range may sit within a single category or stretch across several. In womenswear you might hold dresses. In childrenswear you would typically own an age group, girls two to seven for example, and plan across t-shirts, dresses, trousers and sweats within it. In a boutique you may be planning apparel, footwear and accessories together.
Whatever the scope, you work alongside the merchandising team on the financial and logistical plans, so the range stays inside the buying budget. Later you work with marketing on the seasonal campaign and with visual merchandising on how product will be placed in store.
One thing worth saying at the outset. If you are genuinely excited about the product at concept stage and still excited when the production samples arrive, that is usually a good sign your customer will be too. It is not a substitute for the numbers and it is a signal worth paying attention to.
Podcast Thrive in Fashion Buying & Merchandising
Episode 004, The 10 Key Steps You Need When Building a Fashion Range.
Range building is the part of the job most buyers learn by watching, which means most people pick up somebody else’s habits rather than a method. The Thrive in Fashion Buying and Merchandising course covers it properly, with the range plan templates I used in the buying office.
One: Know Your Customer
You are not buying for your own taste, however good you are at dressing yourself.
You are purchasing on behalf of a business, for a specific person who has to want the product enough to pay for it. That is a fundamentally different exercise, and it is where buyers new to the role most often start from the wrong place.
Knowing that customer determines what belongs in the collection. A customer aged 18 to 35 will not respond to the same shapes as an older one, and a range built without that clarity tends to end up as a set of individually good decisions that do not add up to anything.
Two and Three: Research, Then Build a Mood Board
Once you know who you are buying for, find out what is happening. What is selling in the market, what other brands are doing, what your direct competitors are putting in front of the same customer.
Then build the mood board, which is more than a collection of attractive images. It is how you organise your thinking, and it is one of my favourite parts of a season. Include clothing, colour, fabric, anything that genuinely communicates the direction.
Choose the images carefully. The test of a strong board is that someone else can look at it and understand the direction without you standing beside it explaining what you meant. If it needs the explanation, keep editing.
Four and Five: Styles and Fabrics
With the concept established, work with your designer to sketch the styles, keeping the overall aesthetic consistent while converting ideas into something commercial. Pay attention to fit, silhouette, detail and any embellishment, because those are the elements that will drive both cost and customer response.
Then fabric. Consider the stretch, the weight, the colour, and how it will behave on your customer’s figure. A fabric that flatters is worth more than one that photographs well, and the two are not always the same choice.
Six: The Range Plan Itself
The range plan is created alongside the design work rather than after it, and it is where the commercial plan actually comes together.
It holds every style you are planning: description, materials, supplier, pricing and quantity. It gets redrafted repeatedly, which is normal and not a sign that anything has gone wrong. Styles carrying over from the previous season belong in it too, and your sales analysis from last season should be shaping the whole document.
This is the spreadsheet that lets you see whether the range is balanced before anybody else does, which is why the buyers who treat it as a live working document rather than a form to complete get better outcomes.
Where Ranges Most Often Go Wrong
Two failures account for most of the ranges I have seen underperform, and neither is a product failure.
The first is a range that is individually good and collectively incoherent. Every style earns its place on its own and there is no shape to the whole, so the customer cannot see what the range is for. That happens when the mood board stage was rushed and the plan became a list of decisions rather than a story.
The second is a range signed off against a plan nobody revisited. The concept was agreed in month one, product development moved it, and the range plan was never brought back into line. By the time it reaches sign-off the numbers describe a range that no longer exists, and that gap is exactly what a trading director will find.
One practical habit worth building here. Keep a note against each style of why it is in the range, in a sentence. When you come to edit, and you will edit repeatedly, that note tells you instantly which styles were commercial decisions and which were ones you liked. The second group is where the cuts should come from.
Seven: Price Architecture
Establish your retail price points and make the styles fit them, rather than costing product first and discovering afterwards where it lands.
You are factoring in materials, labour and the profit margin the business requires, while making sure the resulting price offers the quality and value your customer expects at that level. If the price your margin needs is above what she will pay, that is information to act on early rather than a problem to discover at sign-off.
Eight: Tech Packs, Costing and Sampling
With the financial plan in progress, send out the tech packs and begin costing samples.
Costing and sampling with suppliers takes time, and negotiation happens alongside it rather than after. Production and delivery scheduling starts during sample development, which means you need your target launch dates in mind well before the samples are finalised.
Nine: Phasing and the Critical Path
You do not need the full season delivered at once, and phasing is practical for you, the supplier and the business.
Decide which items land in which phase, then work backwards to prioritise deliveries and agree timelines with your suppliers. That tells you exactly when each order has to be confirmed for it to be produced and shipped on time.
Check that your manufacturers have the capacity to produce to your specifications within those timelines. Then make sure everyone understands the critical path and has agreed the timings, the approval process and how communication will work. Once that agreement exists, a delay becomes something you can take corrective action on rather than something you discover.
Ten: Bringing the Rest of the Business With You
A range does not launch on its own, and larger businesses need real coordination across departments.
Marketing needs lead time for the seasonal campaign and the content behind it. Visual merchandising needs to know how the range is intended to sit in store and which pieces carry the story. Retail teams need enough notice to plan launches properly.
None of this is administrative overhead. A range delivered on time into a store that has not been told how to present it is a range that underperforms for reasons nothing to do with the product.
Elisabeth's Final Thoughts
The part of this I have always enjoyed most is not the design work on its own. It is planning the sales targets and the numbers alongside it, and then watching whether the two agreed. When product hits the shop floor and the sales come through, everything you planned gets authenticated at once: the research, the instinct, the commercial judgement. That confirmation is what keeps buyers going from one season to the next, and it only arrives if the ten steps above were done properly rather than quickly.
Building a Fashion Range FAQs
Know your customer, research the market, identify trends and build a mood board, develop styles with your designer, select fabrics, build the range plan, set your price architecture, cost and sample with suppliers, phase the deliveries against a critical path, then coordinate with marketing and visual merchandising for launch.
A detailed spreadsheet holding every style you are planning, with its description, materials, supplier, pricing and quantity information. It is created alongside the design work rather than after it, and it gets redrafted many times. Styles carrying over from the previous season belong in it too.
Gather images of clothing, colour, fabric and anything that communicates the direction, then edit ruthlessly. The test of a strong board is whether someone else can look at it and understand the direction without you explaining it. If it needs explanation, it is not finished.
You do not need the whole season delivered at once. Phasing decides which items arrive in which drop, spreading the intake across the trading period. Once you know the phases you work backwards to agree timelines with suppliers and know when each order has to be confirmed to be produced and shipped on time.
No. You are purchasing on behalf of the business for a specific customer, which is a different exercise from selecting clothes you would wear. Knowing that customer determines what belongs in the range, and a customer aged 18 to 35 will not respond to the same silhouettes as an older one.
