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Attic Truss 40° Pitch

Attic Truss 40° Pitch

Regular price £101.91
Regular price Sale price £101.91
Sale Contact to Purchase
Quantity
  • Bracing timber and clips included
  • UKCA/CE Certified (1224-CPR-0323)
  • 5-10 Day Delivery From £100

An attic truss efficiently transforms hidden roof space into a fully functional living area. Rather than filling the roof void with a dense network of internal timber webbing, attic trusses rely on larger timber sizes to leave a wide central opening. A 40-degree angle balances external height restrictions with comfortable internal headroom, producing a versatile layout suitable for additional bedrooms, home offices, bathrooms or dedicated storage space. As standard, all trusses are manufactured from untreated, structural-grade TR26 timber.


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Place Your Order Online
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We'll Send a Design
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You Confirm You're Happy
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We'll Deliver on a Day That Suits You
W

Wyatt Steedman

7th July 2026

5/5
"Great Company to deal with, designs and quotes were always produced quickly and accurately, changes and modifications were no problem and dealt with quickly and positively. Communication was excellent, delivery on time. Couldn't recommend this company enough - if you are looking for a hassle free service these are the guys to use."
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Timber Grade: TR26, PEFC Certified
Timber Size: 47mm
Treatment: Only required in areas marked on this map. Treatment is a pesticide to protect against the House Longhorn Beetle and does not offer weather protection.

UKCA/CE Certified (certificate no: 224-CPR-0323)
PEFC Chain of Custody Certified
(certificate no: BMT-PEFC-COC-004143)

When you order trusses online, you'll also receive all necessary clips and bracing timber, detailed drawings, a virtual 3D model to work from and calculations that you can submit to building control. Gable ladders are not included but can be added above.

Step 1: Measure Your Building

You can use our helpful video to learn how to measure your building ready for trusses. If you're unsure, give us a ring and we'll talk you through it. It only takes a few minutes.

Step 2: Place Your Order

Select your span, pitch and overhang (if required), then add any drawings you might have. Don't worry if you don't have any—we'll contact you if we need more information.

Step 3: We'll Phone You & Send a Design

Before even looking in the direction of a saw, we'll give you a ring to check all your measurements are correct. If everything looks good, we'll then send you our design for you to have a look through. If you need to make any amendments, we're always happy to do this.

Step 4: We'll Begin Manufacturing & Arrange Delivery

Once you've confirmed your order, we can begin manufacturing your trusses. One of our team will be in contact to arrange delivery on a day that suits you.

What Are The Benefits of Attic Trusses?

🏡 Habitable Space: Unlike a fink truss, an attic truss is specifically designed to provide a habitable room in its structure. This increases space, energy efficiency and often property value too.

⏰ Fast to Install: Attic Trusses can be delivered and installed the next day, if not the same day, allowing you to get your site water tight faster and reducing timber taking up space.

📋 Building Control Compliant: When you order attic trusses from us, we also provide the necessary calculations to send to building control, making the process as smooth as possible.

Whether you're a complete beginner with no knowledge of the industry building a small extension or a seasoned veteran constructing multiple homes, our designers will effortlessly turn your requirements into clear, lifelike designs, allowing you to view 3D models of your proposed project with our attic trusses in place. Our design team are on hand to assist you with every step of your project, from initial enquiry through to installation.

If you have a project that is a little too complex for online ordering, get in contact here and have a chat. We're a friendly bunch.

We have some of the best toys in the industry. We have invested over £2.5M in our brand new facility and have used almost 20 years of manufacturing experience to ensure it does exactly what we want. It’s the secret to turning your project around in as little as 5 days.

Our Saws

We run two Hundegger saws from Germany. These saws are truly incredible, allowing us to cut the timber for your project at an astonishing pace whilst achieving pin-point accuracy. The saws are fed directly from our design office and will optimise the use of every length of timber for minimal waste.

Assembling the Trusses

Once the timber components are cut, they move directly to one of our truss presses. Our skilled assemblers will set out your attic truss on the press with the assistance of a laser system—again, fed from our design office. The lasers minimise setup time whilst ensuring perfect accuracy every time. Once the truss is set, a jig is formed for multiple runs. Steel nail plates are then pressed into the timbers using 35 tonne presses to complete the roof truss.

Timber Quality

Even the timber we use is specific to roof trusses and Posi-Joists. It's sourced from Sweden, where the cold climate ensures the tree grows slow and straight, resulting in a higher quality and more consistent product. The grading is called TR26, and is unlikely to be found at any builders merchants.

Attic Truss Quantity Calculator ➔ Click here to estimate your quantity in seconds

How to Measure For Trusses

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How Are Your Attic Trusses Made?

Designing Your Attic Trusses

Once we receive your order, it will be assigned to one of our MiTek trained designers, like Barry here. He will look at the details you've supplied, along with any plans, and create a bespoke design in our specialist software. This design includes calculations that you can send to building control, ensuring the process is as simple yet comprehensive as possible, along with a virtual 3D model. We'll email you this design for you to check and approve before manufacturing anything.

Manufacturing Your Attic Trusses

Now that the design has been approved, it gets sent to our factory, where our saws cut the timber to the correct lengths in a matter of minutes. Our skilled assemblers are then given the reigns to construct the attic trusses. We use a laser system that's fed from the design office to align the trusses perfectly to your specifications.

Delivering Your Attic Trusses

Finally, we will send you a proposed delivery date and rough time, load the trusses onto one of our vehicles and deliver to you in as little as 5 working days. Our in-house team of drivers gives us far more flexibility if you need to give us some last minute info, like where to park, any road closures or any unexpected delays. See some of the truss projects we've been part of here.

FAQs

Truck carrying a large trusses on a road with trees in the background

Can I supply more measurements?

Yes—either use the 'order special instructions' box in the basket or send us an email with any specific requirements you may have.

What are your delivery options?

We can deliver trusses, joists or glulam in as little as 5-10 working days. The price for delivery depends on your location, which can range from being free to £250. We will ring you after you've placed your order to confirm which day you'd like us to deliver on using our own fleet of vehicles.

For metalwork, it'll be delivered in 1-3 working days using a courier service and costs £20. If spending more than £250 on metalwork, delivery is free.

Are clips and bracing timber included?

Yes—we'll calculate the correct amount and include these in the price you pay above.

Do I need a structural engineer?

No, you don't need a structural engineer. We will design the roof truss and provide you with the necessary structural calculations for building control.

Are your products treated?

As standard, trusses are not treated. Treatment is only necessary if you live in the red marked areas on this map. The treatment is a pesticide to protect against the House Longhorn Beetle and is not a preservative. This treatment does not allow the trusses to be exposed to the elements.