How to Sell on B&Q Marketplace (diy.com): UK Seller Guide (2026)

What is B&Q Marketplace?

Launched in 2022, B&Q Marketplace lets approved third-party sellers list on diy.comalongside B&Q's own products. It multiplied the site's range from tens of thousands of SKUs into the millions — everything from specialist fixings to garden furniture — while keeping the B&Q brand wrapper that UK DIYers trust.

Like Tesco, Screwfix, Currys and Superdrug marketplaces, it runs on Mirakl. One practical consequence: sellers who crack the Mirakl workflow once can expand across several UK retail marketplaces with the same catalogue, same integration, and largely the same operational muscle. We cover the whole family in our UK marketplaces overview.

Who it suits

• Perfect fit: DIY, tools, hardware, garden, outdoor living, lighting, plumbing, electrical, homewares, storage, pet and adjacent categories.
• Strong fit: trade consumables, workwear, smart home, seasonal (Christmas, garden furniture).
• Poor fit: fashion, media, collectables — wrong audience; look at eBay, Etsy or Vinted instead.

The buyer profile is the real asset: diy.com traffic arrives with a project in mind and a basket mentality — a shed buyer needs felt, fixings and preservative. Cross-category sellers do disproportionately well.

Getting approved

Application is via B&Q's marketplace seller programme. Expect scrutiny on:

• Category fit — your range must belong on a DIY site
• Business credentials — UK registration, VAT, product liability insurance
• Compliance — UKCA/CE marking where applicable, GPSR documentation, safety data for chemicals/electricals
• Fulfilment capability — including bulky/heavy delivery if your range needs it
• Product data quality — complete attributes, EAN barcodes, retail-grade images

Compliance paperwork is the most common stumbling block in DIY categories — electricals, chemicals and anything child-adjacent carry documentation requirements that eBay never asked you for. Get the folder in order before applying.

Commission and pricing

No listing fees; category-based commission per sale, confirmed at onboarding. Two pricing implications:

1. Price per channel. B&Q's commission differs from eBay's stack and Amazon's referral fees. A per-channel price rule (e.g. B&Q = cost × 2.4) protects margin without manual repricing.
2. Delivery-inclusive thinking. DIY baskets often contain heavy items. Model your courier costs per product weight band before setting prices — a £3 margin evaporates under a £7 bulky surcharge.

Listing: products and offers on Mirakl

Mirakl splits the product (shared catalogue record — title, attributes, images, EAN) from your offer(price, quantity, delivery promise). Match by EAN to existing products where possible — instant listing, shared reviews — and submit new product data where you're first. Data-quality gates apply: sparse attribute sets bounce.

Manage it in the portal at small scale; automate via the Mirakl API beyond a few dozen SKUs. If your catalogue lives in Salync, your B&Q offers are generated from the same records as your eBay and Shopify listings — with per-channel overrides where diy.com needs different titles or pricing.

Fulfilment standards

• Dispatch within stated handling time (1–2 working days typical)
• Tracked delivery; two-man/pallet options for bulky lines
• Returns to B&Q customer standards
• Service metrics monitored — acceptance rate, on-time shipping, cancellations

As on every curated marketplace, stock-out cancellations are the account killer. B&Q worked to earn buyer trust; cancel orders because your eBay sales weren't reflected in your diy.com offer quantities and your metrics — and eventually your account — pay for it.

The operational key: one stock ledger

B&Q is rarely anyone's only channel. The same pallet of garden furniture is promised on diy.com, eBay and your Shopify store simultaneously — which is fine, as long as every sale anywhere updates everywhere within seconds:

• Central catalogue with SKUs + EANs mapped to B&Q offers once
• Real-time deduction across every channel on every sale
• B&Q orders flowing into one dispatch queue with everything else
• Reorder points computed on total demand across channels

Salync connects B&Q Marketplace via Mirakl alongside eBay, Amazon, Shopify, Tesco, OnBuy, Wayfair and more — real-time sync from one stock ledger, free up to 50 SKUs.