Buying a new kitchen is one of the biggest investments a homeowner can make. Whether you're eyeing up B&Q kitchen units for a full renovation or simply refreshing a tired layout, the most costly mistake you can make is ordering before you've properly planned. Measure wrong, misjudge the workflow, or forget to account for the boiler cupboard — and suddenly those beautiful handleless cabinets won't fit where you imagined them. That's where a free, easy-to-use kitchen planner becomes your best friend before you ever set foot in a showroom.
In this guide, we'll walk you through everything you need to know about planning a kitchen with B&Q units — from understanding their cabinet sizes and ranges to using a digital floor planner to visualise your layout with confidence. By the end, you'll be ready to walk into B&Q (or send a plan to your fitter) knowing exactly what you need.
Why Planning Comes Before Purchasing B&Q Kitchen Units
It's tempting to browse the B&Q kitchen showroom, fall in love with a gloss white finish, and start adding things to your basket. But professional kitchen fitters and designers will tell you the same thing: plan first, buy second. Here's why this matters so much when working with flat-pack or rigid units from any major retailer:
- Standard sizes don't fit every wall: B&Q kitchen units come in standard widths — typically 300mm, 400mm, 500mm, 600mm, 800mm, and 1000mm. Your kitchen walls almost certainly won't divide perfectly into these increments, so filler panels and corner solutions need to be planned carefully.
- Appliance positioning affects everything: Where your oven, hob, extractor, fridge, and dishwasher sit will dictate which units can go where. Moving plumbing or electrics mid-project is expensive.
- Work triangle and workflow: A well-designed kitchen places the sink, hob, and fridge in a triangle that minimises unnecessary movement. You can only truly assess this with a proper floor plan.
- Avoiding costly returns: B&Q has a returns policy, but returning flat-pack kitchen units — especially if opened — can be complex. Getting your order right the first time saves significant hassle.
- Communicating with your fitter: If you're hiring a kitchen installer, they'll need a plan. A digital floor plan you can export as a PNG is far clearer than a hand-drawn sketch.
Understanding B&Q Kitchen Unit Ranges and Sizes
B&Q offers several kitchen ranges under their own brand as well as from partners. Understanding the basics of how these units are structured will help you plan more accurately.
Base Units
Base units sit on the floor and support the worktop. Standard heights are typically 720mm (with adjustable legs bringing them to approximately 870mm once a worktop is added). Widths vary from 300mm to 1000mm. Common base unit types include:
- Standard base cupboards (single or double door)
- Drawer line units
- Sink base units (with cut-out for the sink bowl)
- Corner base units (with pull-out carousels)
- Appliance housing units (for dishwashers, washing machines, or under-counter fridges)
Wall Units
Wall units are mounted above the worktop, typically at a height of around 900mm from the floor to the bottom of the unit. Standard heights are 576mm or 720mm, though tall larder-style wall units also exist. Width options mirror the base unit range.
Tall and Tower Units
Tall units — sometimes called larder units or tower units — run from floor to near ceiling (typically 1970mm or 2150mm high). These are ideal for housing a built-in oven at a comfortable height, a full-height fridge-freezer, or maximising storage in a smaller kitchen.
Worktops and Accessories
B&Q sells laminate, solid wood, and real stone worktops to complement their units. Accessories including internal organisers, pull-out bins, and soft-close hinges are also available. These all need to be factored into your plan — a pull-out bin, for example, requires a dedicated base unit width.
How to Plan Your B&Q Kitchen Layout Step by Step
Professional kitchen designers use CAD software, but you don't need anything that complex or expensive. Our free kitchen planner lets you draw your room accurately, place furniture and appliances, and export a finished plan — all in your browser, with no sign-up required.
- Measure your kitchen accurately. Use a tape measure to record the width and length of every wall, the position of doors and windows (including how far they are from corners), and the location of fixed services like the gas supply, boiler, and electrical sockets. Note ceiling height too if you're planning tall units.
- Draw your room to scale. Open the free kitchen planner at freeroomplanner.com and draw your walls using the snap-to-grid tool (snaps to 10cm increments). Add doors and windows in the correct positions. The planner shows live measurements in metres, centimetres, or feet, so you can verify accuracy as you go.
- Fix your non-negotiables first. Mark the positions of your sink (near existing plumbing), your hob (near the gas point or with space for an electric connection), and any tall appliances. These are your anchors.
- Choose your layout shape. Common kitchen layouts include:
- Galley — units on two facing walls, great for narrow rooms
- L-shape — units on two adjacent walls, versatile for most rooms
- U-shape — units on three walls, maximises storage and worktop space
- Island or peninsula — adds a central unit or a unit attached to one run, ideal for open-plan kitchens
- Place your units. Using the planner's 30+ furniture and fixture items, drag base units, wall units, and appliances into position. Resize items to match the actual B&Q unit dimensions you're considering. This gives you a realistic view of how much space each configuration uses.
- Check clearances. Ensure there's at least 1200mm of clearance between facing units or an island and the opposite run — enough for two people to work comfortably and for appliance doors to open fully.
- Export and share. When you're happy with your layout, export the plan as a PNG. Share it with your kitchen fitter, send it to B&Q's design service for a quote, or use it as a reference when ordering online.
Common Kitchen Layout Mistakes to Avoid
Even experienced home renovators can fall into these traps. Planning digitally — and being able to move things around without commitment — is precisely why a floor planner is so valuable before you order B&Q kitchen units.
- Ignoring the work triangle: Placing the fridge on the opposite side of the kitchen from the sink and hob creates a frustrating cooking experience. Your plan should keep these three elements within easy reach of each other.
- Underestimating corner waste: Corner units eat up more linear space than you expect. A standard corner base unit can require 900mm along each wall. Plan for this before finalising your unit count.
- Forgetting ventilation: Your extractor fan or cooker hood needs to sit directly above the hob, and if it's ducted externally, the duct route needs to be feasible. Don't place a tall unit where the duct needs to run.
- Overlooking socket positions: Worktop sockets, appliance sockets, and fridge connections all need to be within reach. A plan lets you mark these and check they're in logical positions.
- Not accounting for door swings: Base unit doors, oven doors, and the kitchen door itself all need clearance. In the floor planner, you can check that nothing is blocked when doors are open.
Using a Free Kitchen Planner Alongside B&Q's Own Design Service
B&Q offers an in-store kitchen design service and an online kitchen planner tool. These are useful for generating a quote within their product range, but they're naturally limited to their own catalogue and may require you to create an account or book an appointment. Our free kitchen planner complements these services brilliantly:
- Use our planner first to experiment freely with layouts — no pressure, no sales conversation.
- Arrive at a B&Q design consultation with a clear, printed or exported floor plan. Designers will be able to work much faster with an accurate starting point.
- Share your exported PNG with a kitchen fitter before they visit, so they can flag any concerns before the first measure-up.
- If you're a kitchen fitter or contractor whose clients hand you plans, you can use the planner yourself to refine what clients have sent you.
If you're also planning adjacent spaces, our multi-room floor plan maker lets you map out your entire ground floor — useful if you're knocking through to create an open-plan kitchen-diner, for example.
Tips for Getting the Most from B&Q Kitchen Units
Once your layout is confirmed, here are some practical tips for working with B&Q's range specifically:
Mix Unit Heights for Visual Interest
Combining standard and tall wall units, or stepping units at different heights, adds depth and interest to your kitchen. It also allows you to maximise storage in ceiling-height spaces. Plan these height variations in your floor plan so your fitter knows exactly what's going where.
Use Filler Panels Wisely
Unless your walls divide perfectly into standard unit widths (they almost never do), you'll need filler panels to bridge gaps. These are available in various widths and are much cheaper than a custom unit. Plan filler positions into your layout — typically at the end of a run or beside a tall appliance.
Consider Soft-Close Everywhere
B&Q sells soft-close hinges and drawer runners as add-ons. If your chosen range doesn't include them as standard, budget for the upgrade — it's worth it for longevity and the daily quality feel.
Check Lead Times Before You Commit
Popular B&Q kitchen unit ranges, particularly in fashionable colours like navy or sage green, can have lead times of several weeks. Finalise your plan well in advance of your intended installation date, and order everything at once to avoid mismatches between batches.
Who Else Uses a Kitchen Floor Planner?
While homeowners are the primary audience for our kitchen planner, it's also widely used by tradespeople and professionals:
- Kitchen fitters and installers who receive rough sketches or verbal descriptions from clients and need to produce a workable plan before the job begins.
- Architects and interior designers who need a quick, shareable visual to discuss with clients at an early stage before moving to detailed CAD drawings.
- Contractors and builders working on new-build or renovation projects who need to plan kitchen positions within a larger structural context — our multi-room floor plan tool is ideal for this.
- Estate agents and property developers showing prospective buyers how a kitchen could be configured in a given space.
Frequently Asked Questions
What sizes do B&Q kitchen units come in?
B&Q kitchen units follow standard UK kitchen sizing. Base units are typically 720mm high (before legs and worktop) and come in widths of 300mm, 400mm, 500mm, 600mm, 800mm, and 1000mm. Wall units are available in 576mm or 720mm heights, with similar width options. Tall larder units typically stand at 1970mm or 2150mm. Always check the specific range you're interested in, as dimensions can vary slightly.
Do I need to book a kitchen designer before ordering B&Q kitchen units?
You don't have to — you can order B&Q kitchen units directly online or in-store without using a designer. However, using B&Q's design service or creating your own floor plan beforehand is strongly recommended. It helps you calculate exactly which units you need and avoids costly ordering mistakes. Using a free tool like our kitchen planner first means you'll arrive at any design consultation fully prepared.
Can I use a free kitchen planner instead of paying for design software?
Absolutely. For the vast majority of domestic kitchen planning purposes, a free browser-based planner is more than sufficient. Our kitchen planner at freeroomplanner.com lets you draw accurate walls with snap-to-grid precision, place appliances and units, view live measurements, and export a PNG — all without downloading anything or creating an account. Professional CAD software offers more detail, but for planning a B&Q kitchen purchase, it's entirely unnecessary.
How do I share my kitchen floor plan with a fitter or B&Q designer?
Once you've finished your layout in our planner, simply click the export button to save your plan as a PNG image. You can then attach this to an email, share it via WhatsApp, print it, or upload it to any online form. It's a universally readable format that any fitter, designer, or supplier can open instantly.
Can I plan other rooms at the same time as my kitchen?
Yes. If you're renovating more than one space, our multi-room floor plan maker lets you map out multiple rooms in one plan. We also have dedicated tools for a bathroom planner, bedroom planner, and living room planner — all free, all browser-based, and all requiring no sign-up.