On our website and in our marketing materials were often state that we build 'premium' or 'high quality' garden rooms - but what does this mean?


This means that each material and process we use has been carefully chosen to ensure it's suitability. For example we only use construction strength graded timber from sustainable sources, and the appropriate corrosion resistant fixings. 


We love building garden rooms and take great pride in our work. It's our mission to ensure that you're completely delighted with our service and enjoy your new garden room for many, many years to come.

Please review our construction methods below.


The most important structural element of any building is the foundations. If the foundations aren't robust, then the building is set to fail.


Aspen Lodges use a galvanised steel screw pile foundation system that allows essential airflow beneath your building and ensures we can build on sites with uneven ground. 


Once a sturdy foundation had been installed the next phase is to the build the floor deck and structural frame. 

Aspen Lodges generally use one of two construction methods. SIPS (Structural Insulated Panels), or traditional timber framing. The design and purpose of the building, and the location of the site will help to determine which method we use.

When timber framing, we only ever use strength graded C16 for C24 structural timbers which are pressure treated when used externally. One of the characteristics of C16 and C24 timber is that it has fewer knots. The knots can be weak points in timber - so in simple terms, fewer knots mean stronger timber.


The fixings (bolts/screws/nails) and the methods that we use to join our timbers together are as important as the timber.


When using pressure treated timber we only use corrosion resistant fixings which are often stainless steel.


The external finish on your garden room serves several purposes. It's the rain screen which provides the first line of defence in terms of weather protection, but it's also one of the key elements in terms of your building's aesthetics and design.

There's a large selection of cladding options and the choice is often determined by the desired aesthetics and available budget. We'll guide you through the pros and cons of the various options.

Western Red Cedar is a very popular choice for many garden rooms as it looks fantastic and is also dimensionally stable. This means that it doesn't expand and contract with humidity as much as other species of timber. There are various grades of Western Red Cedar, with some of the higher grades having barely any knots, giving it a crisp clean appearance.


However there are many other cladding options available ranging from Siberian Larch, Redwood, Thermowood, and composite options.

Real stone cladding is a premium choice if the budget allows. There are dozens of stone options to choose from ranging from rustic traditional styles through to contemporary quartz and slate. If you really want your garden building to have character and status, then stone cladding will provide it.

Insulation, Ventilation & Heating

Building insulation and ventilation is often misunderstood. Poorly installed insulation can ultimately lead to problems with moisture and ultimately rot. 

Aspen lodges always ensure our buildings have adequate floor, wall and roof ventilation and we always fully insulate our buildings with high quality foil backed rigid foam insulation. We also ensure vapour barriers are installed to stop warm air from within the building reaching the cold exterior and forming a dew point.

Our garden rooms are thoroughly insulated and ensure minimal heating is required to keep you warm through the winter months.


To compliment your chosen cladding style you can choose from either engineered oak, colour foiled PVC, or coloured aluminium doors and windows.

Doors can be either sliding 'patio', bi-fold, or French door style.