Board your loft for storage

A multi-phase loft boarding project: insulate, wire for a light, board, fit a ladder and draughtproof the hatch over several weekends.

Guides in this project

01Top up loft insulation 02Board a small area of loft for storage 03Fit a loft ladder 04Draughtproof a loft hatch 05Do I need Building Regulations approval for loft insulation?

LB-01Plan the job and check if Building Regulations applyBefore buying anything, measure your loft and check the joist size and spacing. Read 'Do I need Building Regulations approval for loft insulation?' to find out whether your plan needs extra structural support or building control sign-off, especially if you want to store anything heavy. Budget roughly £500–£1,200 for a small loft (about 3m x 3m) and allow two to three weekends, plus a weekday for any trade visit. Buy insulation, loft boards, a loft ladder kit and a hatch draughtproofing kit upfront so you're not stuck mid-project waiting for deliveries.

RULES

1 each · Digital cable/pipe/stud detector

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1 each · Tape measure

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KNOW THE RULES

Building Regulations can apply to loft work, particularly around structural loading and the fire safety of the hatch and ladder opening. Check the linked guide before starting, and contact your local council building control if you're unsure.

LB-02Top up the loft insulationFollow 'Top up loft insulation' to bring your existing insulation up to the recommended depth. Do this before boarding, not after, so the boards don't compress it flat and reduce how well it works. Lay it between and across the joists, leaving the eaves ventilation gaps clear. Expect this phase to take half a day for a small loft.

6 pack · Mineral wool insulation roll (100mm, ~8.3m² pack)

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1 pack · Disposable dust masks (pack)

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1 pack · Disposable gloves (pack)

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LB-03Get an electrician in for loft lighting, before boardingIf you want a loft light, book a registered electrician now, before any boards go down, so cables can be run across the open joists rather than lifted later. Adding a new lighting point is wiring work for a registered electrician, not a DIY job. If you need to isolate an existing circuit yourself to help the electrician, switch it off at the consumer unit and prove it's dead with a voltage tester before touching anything. A straightforward loft light first fix usually takes an electrician around half a day.

RULES

1 job · Electrician callout and labour (loft light first fix)

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1 each · LED loft light fitting with pull cord

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KNOW THE RULES

A new lighting point is a job for a registered electrician, who will certify the work; if it needs a new circuit, that is notifiable under Building Regulations. Don't attempt it yourself.

LB-04Board the loft floorFollow 'Board a small area of loft for storage' to fit boards over raised battens, so the insulation underneath stays lofted rather than squashed flat. Check for cables and pipes with a detector before screwing anything into the joists, even if you think you know where the electrician's new cable and any old pipework run. Only board the area your joists can safely carry; don't be tempted to extend across a loft that wasn't built for storage loads. This usually takes a full day for a small area, two if you're covering more.

10 each · Loft storage boards (1220 x 320mm)

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1 pack · Loft leg/batten riser kit

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1 box · Loft board screws (40mm, box)

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LB-05Fit the loft ladderFollow 'Fit a loft ladder' to fit the ladder into your existing hatch opening. If the hatch is too small and would need a ceiling joist cut to enlarge it, stop: that's structural work for a builder and needs Building Regulations approval. Check for cables and pipes with a detector before drilling or fixing into the hatch frame. Get a second person to help hold the frame steady while you fix it, as it's awkward to manage alone. This is usually a one-day job, best tackled once the boarding gives you safe, solid footing to work from.

1 each · Aluminium loft ladder kit (3-section)

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2 each · Timber battens for hatch frame

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1 pack · Fixing screws and plugs

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LB-06Draughtproof the loft hatchFinish with 'Draughtproof a loft hatch' to seal gaps around the hatch and ladder frame. This is a short phase, usually an hour or two, but it makes a real difference to heat loss. Check the hatch still closes and locks properly, since fitting the ladder can change how it sits.

1 each · Foam draught seal strip

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1 each · Insulated loft hatch cover kit

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