Loft boarding · Bristol
Loft boarding that does not wreck your insulation
Boarding turns bare joists into storage you can actually use. Done the wrong way it also flattens your insulation and quietly costs you on every heating bill afterwards.
- Raised boarding that carries the floor above the insulation
- Insulation left at full depth, still doing its job
- A defined storage zone rather than boards you will never walk on
- Priced by area, confirmed after we have seen the joists
5 years · 500+ installs · 4.9/5 · Fully insured
Raised boarding
£50–£100 per m²
Confirmed after survey
The common mistake
Boards straight onto the joists is the cheap answer
Modern insulation is usually deeper than the joists it sits between. Laying boards directly on those joists squashes it flat. Mineral wool works by trapping air, so compressing it does not reduce its performance a little — it removes most of it.
You end up with a usable floor and a colder house, and the second part is invisible until the bills arrive. It is the single most common thing we are called out to put right.
Raised boarding
Lift the floor, keep the insulation
Raised boarding sits on legs fixed to the joists, holding the boards clear of the insulation below. The insulation stays at full depth. There is also a ventilation gap above it, which matters more than people expect in a cold loft.
- Insulation stays put
- Full depth, uncompressed, still performing as intended.
- Air gap above
- Helps moisture move rather than sit against the boards.
- A genuinely flat floor
- Level across the whole zone, not following the joist tops.
- Fixed to structure
- Legs land on the joists, never on the ceiling below.
How much to board
Most people need less than they ask for
A boarded zone around the hatch, sized to what you actually store, is usually the better buy. Boarding the far corners of a loft you will never crawl to costs money and gets used once.
- Board the reachable area around the hatch first
- Leave the eaves — headroom there makes them near-useless anyway
- Extend later if you genuinely fill it
- Tell us what you store and we will size it to that
How it is priced
Boarding is priced by area
Joist spacing, insulation depth and how much of the loft you want covered all change the figure, which is why it is confirmed after the survey rather than over the phone.
| Job | Price | What's included | Time on site | Best for |
|---|---|---|---|---|
| Raised boarding, per m² | £50–£100 / m² | Included: Legs or bearers, boards, fit | Time: By area | Best for: Storage without crushing insulation |
| Basic boarding on joists, per m² | £50–£90 / m² | Included: Chipboard on joists, labour | Time: By area | Best for: Light, occasional storage only |
| Walkway only around the hatch | From £250 | Included: Partial deck for tank or light access | Time: Few hours | Best for: Minimum safe standing area |
| Raised system, 20m² | £1,000–£1,800 | Included: Survey, legs, boards | Time: 1–2 days | Best for: Typical three-bed semi |
| Raised system, 30m² | £1,500–£2,700 | Included: As above | Time: 2 days | Best for: Larger loft |
| Boarding and loft ladder package | £600–£1,400 | Included: Access and deck in one visit | Time: 1–2 days | Best for: Empty loft with poor access |
Common questions
Questions about boarding
Will boarding ruin my insulation?
It will if the boards are laid straight onto the joists on top of it. Compressing mineral wool destroys most of its value — the air trapped in it is what insulates. Raised boarding carries the floor above the insulation so it stays at full depth and keeps working.
How much of the loft should I board?
Usually less than people expect. A defined storage zone near the hatch is cheaper, quicker and easier to use than a fully boarded loft you then have to crawl across. We will tell you honestly if you are asking for more than you need.
How much weight can it take?
A boarded loft is for domestic storage — boxes, cases, decorations. Ceiling joists were sized to hold a ceiling up, not to be a floor. If you are planning to store something genuinely heavy, tell us at the survey and we will look at it properly.
Can you board and fit a ladder in the same visit?
Yes, and it is the sensible way to do it. One set-up, one tidy-up, and the boarding is done with the finished access already in place.
Do I need to clear the loft first?
The area being boarded needs to be clear. We can usually work around belongings stacked to one side, but the more clear floor there is, the quicker the job goes.
Useful guidance
Official sources, if you want to check any of this
We would rather you verified the standards than took our word for them.
- Approved Document L — boarding should not compress your insulation
- Approved Document A — joists must be able to carry storage loads
- Energy Saving Trust — independent figures on keeping insulation at depth
Ready to get started?
Turn the joists into storage
Tell us roughly what you store and we will size the boarding to it. Call 0117 463 6501.
- 5 years
- 500+ jobs
- 4.9/5
- £5m insured
- 12-month workmanship guarantee