How much is a bag of logs? (UK guide)

If you’ve ever grabbed a small bag of logs from the entrance of a supermarket, garage or DIY store, you’ve probably wondered: “How much is a bag of logs – and am I getting good value?”
This guide focuses on the small bags of kiln dried logs commonly sold in UK supermarkets and DIY chains, and explains what you can expect to pay, what you actually get for your money, and how that compares to buying firewood in bulk.

How much is a bag of logs in the UK?

Prices vary by retailer, brand, wood type and region, but as a general guide:

• Standard small bag of logs (often labelled as “kiln dried logs” or “seasoned logs”)
  Typical price: £6–£10 per bag
  Commonly found in: supermarkets, petrol stations, garden centres, DIY sheds
• Premium kiln dried hardwood bag (oak, ash, birch etc.)
  Typical price: £8–£12 per bag
  Marketed as: “kiln dried hardwood logs”, “ready to burn”, low moisture content

Although one bag of kiln dried logs might look affordable at £7–£10, the actual volume of wood is quite small compared with bulk delivery options. Over a full heating season, repeatedly buying these small bags can work out significantly more expensive.

How much is one bag of kiln dried logs?

When people ask “How much is one bag of kiln dried logs?” they’re usually referring to the ventilated plastic or net bags stacked near store entrances or petrol station tills.

For one bag of kiln dried logs in a UK supermarket or DIY store, you can typically expect:

• Price range: Around £7–£12 per bag for kiln dried hardwood
• Log length: Usually 20–25cm
• Wood type: Often mixed hardwoods, or a single species such as birch
• Moisture content: Typically below 20%, meeting Ready to Burn standards

Because of the processing, packaging, transport and retail overheads, the price per unit of heat from these small bags is much higher than buying a bulk bag or crate delivered to your home.

Why are small bags of logs so expensive?

1. Retail overheads – Higher costs of premises, distribution and staffing feed into the final price.
2. Packaging and handling – Smaller bags require more packaging and manual handling per unit of wood.
3. Distribution – Multiple transport stages increase costs.
4. Impulse purchase pricing – Stores price these bags for convenience-driven buyers.
5. Low volume per bag – You pay a high effective cost per cubic metre.

How many logs are in one bag?

Typical supermarket or DIY store bags contain:

• Around 8–15 logs, depending on diameter
• Enough for one evening’s full burn or two shorter fires

Bags are normally sold by weight or loose fill volume, so variation is common.

How much heat do you get from one bag?

A small bag of kiln dried logs usually provides:

• One longer evening burn in a high-efficiency stove, or
• Two short fires if used sparingly

Regular stove users may need:

• 3–5 bags per week in milder cold spells
• 7+ bags per week during heavy use

This is why buying small bags over winter can quickly become expensive.

Typical size of small shop-bought bags

Most small retail bags are:

• 8–12kg in weight for kiln dried hardwood
• Equivalent to roughly 0.02–0.03m³ of loose logs

As a rule of thumb:

• 40–50 small bags ≈ 1 loose cubic metre

This makes the per-m³ cost of supermarket bags far higher than bulk deliveries.

Small bags vs bulk bags and crates – price comparison

Example comparison:

Small shop bag of kiln dried logs

• Price: ~£8
• Loose volume: ~0.025m³
• Approx. equivalent per m³ cost:
  1m³ ÷ 0.025 = 40 bags
  40 × £8 = £320 per m³

Bulk kiln dried logs from specialist suppliers

• Often £150–£220 per m³ equivalent, depending on species and format

Supermarket bags can therefore cost 50–100% more per unit of heat.

What affects the price of one bag of kiln dried logs?

• Wood species (hardwoods cost more than softwoods)
• Moisture content (kiln dried, Ready to Burn wood is premium)
• Retailer type
• Packaging and branding
• Regional demand

Are supermarket and DIY bags good value?

They’re worth it if you want:

• Convenience
• Emergency top-up fuel
• Minimal storage needs

They’re poor value if:

• You use your burner regularly
• You heat your home with logs
• You want consistent log sizes and better volume/£

In those situations, bulk kiln dried log deliveries offer much better long-term value.

Tips for getting better value from small bags

• Choose hardwood over softwood
• Check for Ready to Burn certification
• Burn on an efficient stove
• Use quality kindling
• Store bags somewhere dry and covered

When to switch from small bags to bulk deliveries

You may be ready to switch if:

• You buy multiple bags weekly
• You rely on your stove for daily heating
• You have a log store or dry storage space

Bulk logs provide:

• More heat for your money
• Greater consistency
• Fewer trips to the shop

Summary: How much is a bag of logs?

• A small bag of logs typically costs £6–£10
• One bag of kiln dried logs usually costs £7–£12
• Each bag gives one or two burns
• Effective cost per m³ from shop-bought bags can exceed £300
• Bulk logs offer far better long-term value

Small supermarket and DIY bags are great for convenience, but not for sustained winter heating. For regular stove users, bulk deliveries almost always offer the best overall value.

Disclaimer

Prices mentioned in this article are approximate and subject to change.
They reflect typical UK retail pricing as of December 2025 and may vary by retailer, location, wood species and market conditions.

Choose Better Value: Explore Kiln Dried Logs from FirewoodFund

If you’re regularly buying small bags of logs from supermarkets or DIY stores, switching to bulk-delivered kiln dried logs can save you money while giving you far more consistent quality and heat output. FirewoodFund offers premium kiln dried hardwood logs delivered UK-wide, with reliable sizing, excellent heat performance and far better value per cubic metre than shop-bought bags. If you’re ready for cleaner burning, longer-lasting heat and convenient home delivery, explore our full range of kiln dried logs today.