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Lenna 423 Slide – 24.9m² L‑Shaped Gazebo

From €7,620

Available To Order

FREE DELIVERY throughout Mainland Spain (Please contact us for delivery to islands and other locations)
Delivery Date: Approx 8-10 weeks from order. Want it quicker? View our in-stock cabins
5 Year Warranty. Your new timber building is made to the highest standards
5.88m x 628m, Height: Under 2.5m, Wall Thickness:

Combination Gazebo and Garden Room

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Available on back-order

Product Options

This modular building kit contains all necessary timber panels, doors, windows and fixings as standard. To complete your new building, you will require a suitable base for installation, roof covering, and paint or varnish to weatherproof your natural timber building. Please choose from the options below.

Your new building needs protection from the elements. If you're not sourcing your own roof covering materials, take a look at what we can offer. Our EPDM rubber roof is recommended for all flat and pent sloping roof models and is a single sheet of rubber that comes with the glue, side and gutter trims and all of the materials needed to complete and fully seal your roof from the elements. Our EPDM has a 50 year life approximately and is perfect for sloping roof models.

We offer a range of garden building bases to suit all locations and ground conditions. For reasonably level surfaces, we recommend our environmentally friendly interlocking grid base. These are lightweight, free draining and the strongest on the market - available for DIY installation or fitted by us, and suitable for every building that we sell. For sloping or uneven surfaces, our metal ground screws are ideal - including a bespoke timber frame and all fitted by our professional team. Ground screw bases are not available for all buildings and not suitable for DIY installation. Find Out More

Keep your cabin protected from water damage with our guttering systems, designed to direct rain flow away from the base of your new garden building. Add an optional water butt to conserve water ready to nurture your garden in the dry summer months.

Optional Floor
Double Glazed Sliding Doors

Our expert fitting team can install any building available on our website across mainland UK. With years of experience, you can be sure that our teams will provide you with the best possible service, installing your building to the highest levels of quality and leaving you with more time to enjoy your purchase. Our hassle-free installation service covers everything you have chosen above. FIND OUT MORE ON OUR INSTALLATION TAB BELOW

Installation Location

Paint

Your cabin will require litres of exterior treatment and litres of interior treatment to protect the building in line with the manufacturer's warranty. After you have configured your cabin, please visit our Paint & Protection page to choose from our wide selection of paints and varnishes.

Base Price€7,620
Install Cost€0
Options Total€0
Total€7,620
Base Price€7,620
Install Cost€0
Options Total€0
Total€7,620
Brand: Lenna Connect|Palmako
Categories: All Buildings, Gazebos & Pergolas, Gazebos for Commercial Use, Lenna Range, Outdoor Entertainment, Pavilions, Pent Roof Models, Rest and Relaxation

Description

Lenna 423 Slide – 24.9m² L‑Shaped Garden Room & Gazebo

The Lenna 423 Slide is the flagship model of the Lenna Slide range — a stunning L‑shaped hybrid building combining a fully enclosed double room with a stylish 3m x 3m open gazebo. Designed for customers who want a premium multi‑use outdoor space, the 423 delivers exceptional flexibility, modern aesthetics, and year‑round usability.

This model features a solid back wall and solid side wall on the enclosed room, with the remaining elevations fitted with three full sets of Palmako Slide single‑glazed sliding doors, creating a bright, panoramic indoor space ideal for offices, gyms, lounges, studios, or entertainment rooms.

Attached to the main room is a 3m x 3m gazebo with a half‑height wall corner, perfect for outdoor dining, hot tubs, BBQ areas, or shaded seating. The entire structure is built on the proven Lenna 24.9m² pent‑roof platform, ensuring strength, stability, and a clean modern profile.

As with all Lenna Slide models, the 423 includes 4mm toughened glass as standard, with the option to upgrade to Slide Plus 4‑16‑4mm sealed double‑glazed units for improved insulation and comfort.

Key Features

  • Premium L‑shaped layout combining a 6m x 3m enclosed room with a 3m x 3m gazebo
  • Three full sliding‑door systems (Palmako Slide) for maximum light and visibility
  • Solid 28mm back wall and solid 28mm side wall for privacy and weather protection
  • Half‑wall corner gazebo for sheltered outdoor use
  • Pent roof design with modern clean lines
  • 4mm toughened glass as standard
  • Optional Slide Plus glazing upgrade (4‑16‑4mm toughened sealed units)
  • Optional floor kit available
  • Modular Palmako Connect components for precision fit and easy installation

Lenna 423 Slide 24.9m2 L Shape From Cabins Unlimited Inside#

Key Features

  • Total footprint: 24.9m²
  • L‑shaped hybrid layout:
  • Large enclosed room with three glass walls + one solid wall
  • Open gazebo section with half‑wall corner for privacy and wind protection
  • Single‑glazed Slide system as standard
  • Upgrade available: 4‑16‑4 mm double glazing
  • Pent roof design under 2.5m ridge height
  • Optional floor kit available
  • Premium laminated posts (120×120 mm)
  • Modular Palmako Connect wall system for strength and precision
  • Ideal for multi‑season use

Dimensions & Specifications

Lenna 423 Slide 24.9m2 L Shape From Cabins Unlimited Specifications

Dimensions

Overall Building

  • Total area: 24.9m²
  • Overall width: 588 cm
  • Overall depth: 628 cm
  • Wall height: 210 cm
  • Total height: 245 cm
  • Roof overhang: 20 cm
  • Roof area: 31.5m²
  • Roof gradient: 3° pent roof

Lenna 423 Slide 24.9m2 L Shape From Cabins Unlimited Gazebo RightLenna 423 Slide 24.9m2 L Shape From Cabins Unlimited Gazebo Left

Enclosed Room (Double 3m x 3m)

  • Internal footprint: 6m x 3m (18m²)
  • Solid walls: Back + one side
  • Glazed walls: Three elevations with sliding doors

Gazebo Section

  • Footprint: 3m x 3m (8.3m²)
  • Half‑wall corner: Included
  • Open elevations: Two sides

Door & Glazing

  • Sliding door opening: 177 × 206 cm
  • Glass: 4mm toughened (standard)
  • Upgrade: 4‑16‑4mm Slide Plus double glazing

Lenna 423 Slide 24.9m2 L Shape From Cabins Unlimited

Why Choose the Lenna 423 Slide?

The Lenna 423 Slide is the perfect choice for customers who want both indoor and outdoor living in one beautifully integrated structure. The L‑shape creates a natural courtyard feel, while the triple sliding‑door system transforms the main room into a bright, luxurious space suitable for work, leisure, or relaxation.

Whether used as a home office with an adjoining outdoor seating area, a gym with a shaded cool‑down zone, or a lounge with a BBQ gazebo — the 423 Slide adapts effortlessly to your lifestyle.

Additional information

Building Type

, ,

Base Depth Range (m)

Above 5.0m

Base Width Range (m)

Base Size Width (m)

Base Size Depth (m)

Ridge Height

Roof Style

Model Footprint

Delivery (Weeks)

Fast delivery

Manufacturers Warranty (Years)

Product Size

Large Models

Floor Thickness

Wall Type

Full Wall, Half Wall, Slide Glass Wall

Double Glazing

, ,

Our Installation Service

Our expert fitting team can install any building available on our website across the UK. With years of experience you’ll be sure that our teams will provide you with the best possible service on the market. We calculate all of our installation prices based on your exact requirements, so please get in touch by either requesting a quote or giving us a call on +34 932 205118.

Don’t worry if you’ve already purchased your timber building, we can install that too! Be sure to fill out the form below with the building manufacturer and model number and our team will be able to provide a quote.

Get a quote

To get a quote on the installation of your timber building simply fill in the form. A member of our team will then contact you with a quote for the elements you require.

❓Below are many of the Frequently asked questions we get about our range of Pent Sloping Roof Interlocking Log Cabins & Summerhouses.  Use the down arrows to the right to reveal the answers

A pent roof cabin offers a sleek, modern look with a lower profile that’s ideal near boundaries. Its single‑slope roof provides efficient rainwater runoff and allows for EPDM rubber roofing, which is long‑lasting, low‑maintenance, and leak‑free — making it a practical and contemporary choice.

EPDM rubber roofing is highly durable, long‑lasting, and weather‑resistant. It has no joins, which means it won’t leak, and it provides a clean, modern finish ideal for pent roof designs.

EPDM roofing can last 40–50 years with minimal maintenance, significantly longer than felt shingles. Cedar shingles offer a natural look but require more upkeep, while EPDM is virtually maintenance‑free.

Pent roof cabins are specifically designed for EPDM roofing, which we strongly recommend. Alternative roofing materials are not generally advised due to performance and design considerations.

Yes, pent roof cabins are a popular choice for garden offices and studios. Their modern design, efficient roofing, and insulation options make them ideal for year‑round use. They also give the internal appearance of larger space compared with a similar footprint Apex model.

Absolutely. Pent roofs are built with a slight slope to ensure effective rainwater runoff, preventing pooling and protecting the structure. Linked with our guttering options a Pent model only requires guttering at the back of the building.

Pent roof cabins are designed with a single slope roof, which naturally directs rainwater to one side. Adding guttering is optional but recommended if you want to:

  • Protect the base and walls by channelling water away from the structure.
  • Reduce dirt splashback and tidelines caused by rain hitting the ground near the cabin.
  • Harvest rainwater for garden use, as guttering makes collection simple.

Because the roof falls in one direction, guttering is only required along that single edge.

Yes, insulation is available for floors and roofs as standard upgrades. We can also provide thicker insulation or wall insulation if required.

Yes, wall insulation and additional interior cladding can be added as our best and highest upgrade.  Whilst this will significantly increase the cost of the building it will provide additional warmth. The downside to internal wall insulation is you lose the look of a timber building unless you opt for timber cladding.

Pent roof cabins are often chosen for their sleek, contemporary look. They complement modern gardens and urban spaces, whereas apex and hipped roofs offer a more traditional aesthetic.

Pent roofs provide a lower external profile, which can be useful near boundaries, while still offering generous internal headroom.

Yes, the lower height of pent roof cabins often makes them more suitable for boundary placement, helping to comply with planning regulations.

Our cabins are available in a variety of log thicknesses to suit different needs. Thicker logs provide greater strength, insulation, and durability, while thinner logs are ideal for budget‑friendly summerhouses. The thickness of the logs is shown in the individual product specifications, but we have models that have 28mm, 40mm, 44mm 68mm and 70mm interlocking logs.  If you need thicker logs, please contact us as we can product buildings using a bespoke service.

You can select from full‑length windows, ¾ height windows, or ½ height windows depending on the model. Each style offers a different balance of light, privacy, and aesthetics.

Most of our cabins are supplied with premium sealed double glazing for excellent insulation and energy efficiency. Budget models may come with single glazing, which is clearly listed under the specifications tab.

Standard options include single solid doors, single half‑glazed doors, double doors, wooden bifold doors, and sliding doors. On selected models, you can upgrade to UPVC doors and windows for enhanced security and low maintenance.

Optional Insulation is available on most pent, apex, and hipped models unless otherwise stated. We also offer upgrades to thicker insulation or wall insulation if you require year‑round comfort.

As everyone has difference budgets and requirements, we have asked customers how they prefer to see the breakdown of the prices and we feel this is the most transparent way.  Customers can select the individual components to build their own package which is priced individually so you know what you are getting.  Nothing hidden.

All cabins come with a manufacturer’s warranty covering structural integrity and materials. Full details are provided with each product.

In most cases, summerhouses fall under permitted development rights and do not require planning permission. However, this depends on size, height, and placement, as well as your location, so we recommend checking with your local authority.

Delivery times vary depending on the model and your location. Installation can typically be completed within a few days once the base is prepared. If you need a building urgently then please contact us and we may be able to recommend a model available for immediate shipment.

Yes, many models allow customization. Speak to our team about adding extra doors, windows, or other upgrades.

We recommend treating the timber with a high‑quality timber treatment and we recommend Sadolin for its quality, ease of application and longevity. Regular re-application of timber treatment and checks on roofing and glazing will help maintain performance.

Many customers choose to assemble their cabins themselves using the provided instructions. We also offer professional installation services with our own employed installation team if you prefer a hassle‑free experience. Many customers prefer us to install their building especially as they may not have the technical ability, experience or tools required.  Our teams are very experienced and offer a very high quality of service backed with years of many exceptional reviews. If you are using a third-party fitter, then take care to ensure they have the correct experience.  As our fitters are all directly employed by Cabins Unlimited, we are best placed to install your building. Check if your cabins supplier has their own team as many outsource with negative consequences should something go wrong. Not something you will experience with Cabins Unlimited!

A solid and perfectly level base is essential for any interlocking summerhouse or log cabin. We recommend our Eco-Base Plastic Grid System called Probase owing to it allowing water to drain away from the base of the building but other alternatives including concrete pads, paving slabs, or a timber frame foundation to ensure stability and longevity.

All doors and windows are fitted with quality locks. UPVC upgrades provide additional security and peace of mind.

Yes, with insulation upgrades and a suitable heating source, your cabin can be enjoyed comfortably throughout the year.  Please talk to us about our range of air conditioning options that are perfect and cost-effective ways of heating and cooling your building throughout the year.

We offer flexible payment options on many models. Please check the product page or contact our team for details.

Video preview
Video preview
Lenna 423 Slide 24.9m2 L Shape from Cabins Unlimited Install Manual
Lenna Slide 423 L Shaped Gazebo from Cabins Unlimited Sliding Door Install Guide
Lenna Slide 4230 L Shaped Gazebo from Cabins Unlimited Half Wall Install Guide
Lenna Slide 423 L Shaped Gazebo from Cabins Unlimited Full Wall Install Guide
Lenna Slide 423 L Shaped Gazebo from Cabins Unlimited Module List

Modern Sliding Door Technology

Palmako Slide Plus systems are designed to bring natural light, garden views, and contemporary styling together in one premium glazing solution. Featuring large glass panels within robust aluminium frames, these systems create bright, open interiors while maintaining excellent weather protection and everyday practicality.

Double-Glazed Comfort

The Slide Plus system incorporates high-performance 24mm double glazing, consisting of two toughened safety glass panes separated by a 16mm cavity. This construction helps improve thermal performance while contributing to a quieter interior environment, with sound reduction of up to 35dB.

Palmako Slide Doors And Windows

Premium Aluminium Construction

Manufactured from powder-coated aluminium, the Slide Plus framework is designed for long-lasting durability and minimal maintenance. Finished in Anthracite Grey (RAL 7016), the sleek profiles complement both modern and traditional garden buildings while offering excellent resistance to weather exposure.

Smooth and Effortless Operation

High-quality roller mechanisms, reinforced bearings and precision-engineered sliding rails ensure smooth opening and closing. Each door panel operates on its own dedicated track, allowing panels to slide freely and providing flexible access options depending on the building design.

The Slide Plus system has been developed to provide outstanding protection against wind and rain. Multiple sealing features, including interlocking door profiles, wind-lock technology, brush seals and dual weather gaskets, help create a secure barrier against the elements. Integrated drainage channels within the lower track assist water management and help prevent moisture ingress.

Enhanced Security Features

For added peace of mind, Slide Plus doors are fitted with toughened safety glass and secure locking mechanisms. Anti-lift protection helps prevent door panels from being removed from their tracks, while internal and external locking points provide secure everyday operation.

Palmako Slide Doors And Windows Detail

Designed for Year-Round Enjoyment

Whether used in a garden room, gazebo, pavilion or outdoor living space, Palmako Slide Plus doors create a seamless connection between indoors and outdoors. The expansive glazed surfaces maximise daylight while preserving comfort, making the space enjoyable throughout the seasons.

Key Features

  • Premium double-glazed sliding door system
  • 24mm toughened safety glass construction
  • Noise reduction performance of up to 35dB
  • Maintenance-free powder-coated aluminium frames
  • Anthracite Grey (RAL 7016) finish
  • Smooth-running sliding mechanism
  • Wind-lock and multi-seal weather protection
  • Integrated drainage system
  • Secure locking and anti-lift features
  • Large glazed panels for maximum natural light and garden views

Palmako Slide Doors And Windows Specs

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Why Buy From Us

We’re Experts in our Field

We have over 25 years’ experience in providing exceptional timber buildings – meaning you get expert advice and quality workmanship from one of the best names in the business.

Price Match Promise

We keep our prices competitive, with great package deals all year round. If you find the same in stock building cheaper from a UK supplier, we’ll match their price. Simple.

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Local Display Sites

With three display sites across Norfolk, you can see the quality of our buildings before you buy.

Professional Installation Service

We don’t just supply timber buildings, we install them for you too – using our own, directly employed professional installation team.

Comprehensive Warranties

Our timber buildings are constructed to the highest standards, backed by manufacturer warranties for your peace of mind.

Free Delivery

Our timber building prices include FREE delivery to England and Wales, with other delivery locations available on request.

Responsibly Sourced Timber

We work exclusively with manufacturers who are FSC certified – ensuring that the timber in our buildings comes from responsibly managed forests.

Family Run Business

Cabins Unlimited is an independent, family-run business, where we treat every customer like one of our own.