Almost always, yes. Most lofts can be boarded, although the installation is not always simple. There are restrictions and regulations around what you can and cannot do in your loft.

Can you lay loft boards directly onto your joists?

No. Putting boards directly onto your joists will squash your insulation and restrict airflow in your loft. Not only is this against building regulations, but it can also cause damp and mould to form from restricting the airflow.

Can you board over loft insulation?

Yes, as long as the boarding is raised above your insulation level and has a small gap to allow airflow. Not raising the boarding can cause dampness and mould to form from restricting the airflow.

Do I need permission to board my loft?

You can board out your loft without building consent, but it can only be used for storage or a non-living space, such as a hobby room.

Can I board my loft and use it as a bedroom?

If you're converting your loft into an extra bedroom or a room considered a living space, the work must meet the government's building regulations. The room must be accessible via a permanent staircase and comply with the correct fire regulations. This requires a full loft conversion, which is not a service we offer.

How long does it take to board a loft?

Depending on the size of the area and the ease of access, most loft boarding jobs take between one and two days to install.

Can I board my new build loft?

Absolutely. UK Loft Boarding specialises in boarding out new and old loft spaces. All our work is carried out in accordance with building regulations and does not affect your NHBC new build warranty.

Does boarding your loft void/invalidate NHBC?

No, it will not affect your warranty as long as it is installed correctly. There are several reasons your builder may say otherwise, such as concerns about squashing insulation, roof truss strength, or potential dampness. However, correctly fitting loft boards using one of our raised floor systems will not affect your warranty.

Are All Loft Boards The Same? Loft Boards Comparison Guide

Why the Quality of Your Loft Boards Matters

Why high-quality loft boards make all the difference for storage safety and ceiling integrity.

When boarding your loft for storage, the loft boards you stand on are the only barrier protecting your belongings and the ceiling below.

Many homeowners assume that all wood panels or chipboards are identical, but this is a common and potentially costly misconception. Standard wood boards, thin DIY panels, or general-purpose chipboard are not designed to support structural weight in unheated, damp conditions like an attic space. Correctly choosing certified loft boards is critical.

At UK Loft Boarding, we source only certified, high-density, structural-grade loft boards from leading UK timber distributors. We alternate between different loft board dimensions depending on your loft's access size, joist layouts, and specific project needs—ensuring a secure, lifetime-lasting fit.

Understanding Chipboard Grades for Loft Boards (P4 vs P2)

Why building regulations specify flooring-grade loft boards for attic storage

P4 & P5 Grade Flooring Grade

Structural Flooring Panels

P4 and P5 chipboards are manufactured to rigorous European Standards (EN 13986 / EN 312) specifically for load-bearing floors. These certified specifications match official UK Declarations of Performance (DoP) for quality loft boards.

18mm Thickness: Essential thickness to prevent sagging between joists.
12.5 N/mm² Bending Strength: Certified structural strength for walking and storage load.
5.4 kN Point Load Strength: Certified point load capacity (punching shear) supporting concentrated weight (over 500kg!).
Interlocking T&G: Tongue & groove long edges lock boards together to distribute weight.

Standard Loft Boards for UK Loft Boarding

P2 Grade DIY Store Grade

General Purpose Panels

P2 chipboard is intended for internal furniture, shelving, and dry-interior partitioning. It is NOT certified for structural flooring or load-bearing applications.

Thin Profiles (12mm-15mm): Often sold cheap, but sags under load.
Bows & Cracks: Flexes when walked on, stressing ceiling joists.
No Moisture Resistance: Absorbs attic moisture, swell, and disintegrates over time.
No Structural Certification: Safety hazard for storage and walking.

NEVER Used by UK Loft Boarding

Our Technical Loft Board Options Compared

We select the ideal loft boards based on your specific property's layout and access.

Feature / Spec	Narrow-Profile Loft Boards	Standard-Width Loft Boards
Dimensions	1220mm x 253mm	1220mm x 320mm
Thickness	18mm (High-Density)	18mm (High-Density)
Structural Grade	P4 Structural flooring grade (EN 13986)	P4 (Standard) & P5 (Moisture Resistant options)
Joint Connection	Tongue & Groove (Long Edges)	Tongue & Groove (Long Edges)
Bending Strength	12.5 N/mm² (EN 13986 DoP certified)	12.5 N/mm² (EN 13986 DoP certified)
Point Load Capacity (Punching Shear)	5.4 kN (supports over 500kg)	5.4 kN (supports over 500kg)
Internal Bond Strength	0.45 N/mm²	0.45 N/mm²
Sustainability	FSC / PEFC certified sourcing	Manufactured from ~70% recycled timber material
Best Suited For	Small/awkward loft hatches, tight accesses, and complex cut-outs	Large, open spaces for faster installation and fewer joint seams

Why Narrow-Profile Loft Boards (253mm) Matter

Standard building floorboards are huge (typically 2400mm x 600mm) and impossible to fit inside a residential home's loft. Narrower loft boards are engineered at 253mm wide to pass smoothly through even the smallest, historic, or awkward loft access hatches without needing to enlarge the opening. They are lightweight and highly manoeuvrable in low-height rafters.

Why Standard-Width Loft Boards (320mm) Matter

At 320mm wide, these loft boards cover a larger surface area per board. For properties with modern, standard-sized hatches, this width is ideal. It translates to fewer joint connections across the loft, creating an extremely uniform surface, reducing installation time, and optimizing timber yields with less waste.

Crucial Installation Rule

Having the Right Board is Only Half the Battle

Even the highest quality loft boards must be raised above the ceiling joists if insulation is present.

Laying boards directly on joists compresses your insulation. Squashing insulation by just 50% reduces its thermal performance by over half, raising your energy bills and leading to temperature transfer that causes damp, condensation, and structural rot.

To preserve your home’s energy efficiency and comply with building codes, all loft boards must be raised above the full height of the insulation using a certified raised subframe system.

Our Subframe Systems:

LOFT-E® metal raised leg: For new-build homes to protect NHBC warranties.
LBNW timber raised frame: Engineered specifically for pre-war/older property joists.

LOFT-E® METAL RAISED FLOOR SYSTEM

Raise your loft floor above the insulation

All new build houses today have lofts that must conform to building regulations and government recommended loft insulation heights.

The LOFT-E® system has been designed to solve two problems when planning on boarding your loft for storage.

Firstly, boarding directly on top of your loft insulation is incorrect. Squashing or having to remove the existing loft insulation should never be done.
Building above the insulation is now possible by using a product that is designed to last a lifetime. The LOFT-E® system can not only raise the loft floor platform above the insulation level, but it can also account for variations in joist height.

Secondly, a problem that plastic products face in a loft are the consistent temperature changes, plastic softens during the heat of summer and therefore has the potential for the legs to buckle and the storage floor to collapse. This can also happen in the cold of winter with the legs getting so cold that they can become very brittle and can have a tendency to fracture, again leaving you with the same problem. Hence why we chose 100% recyclable steel.

There are 2 main parts to the LOFT-E® system. you can read about them here: