Diederick Modern Summer House 6.25 x 3.75m
- Product number
- DE112018
- Our Diederick Modern summer house measures 6.25 x 3.75 (13ft 11.3” x 12ft 3.6”), making it one of our larger summer houses. Perfect as a summer house, home office, or creative space, this garden building provides modern style and comfort to your garden.















3,548.30
incl. vat
- 10 year guarantee *
- Unbeatable Industry Knowledge
- Free delivery to most UK homes *
Product Options
Select your additional products below:
Roofing Options
I will buy my own.

Felt Roofing Set

High Performance Easy Roofing (Self-adhesive)

EPDM Rubber Roofing Set 15 (Glue inc)
Foundation Beams
I will buy my own.

6x Standard Foundation Beams

6x Tanalised Profiled Foundation Beams

6x Composite Profiled Foundation Beams
Flooring Options
Roof and Floor Insulation
Wall Accessories
- 10 year guarantee *
- Unbeatable Industry Knowledge
- Free delivery to most UK homes *
Specifications
- Weight
- 930 kg
- Finish
- Planed
- Wall thickness
- 28 mm
- Material
- Wood
- Wood type
- Scandinavian spruce
- Colour
- Natural
- Width
- 6,25 m
- Depth
- 3,75 m
- Height
- 234 m
- Measurements
- 6.25 x 3.75 x 2.34 m
Diederick Modern Summer House 6.25 x 3.75m
Transform your garden with a summer house
Manufactured with 28mm interlocking Spruce logs, our Diederick summer house offers durability and comfort. This summer house features an indoor space (2.49 x 3.49m) that you can use as storage, a garden lounge or even a home office, accompanied by a 3.5m canopy which provides the perfect place to relax, dine or entertain in the warmer months while staying sheltered from the elements. The canopy can be positioned either side of the summer house so the building can be customised to meet your needs.
This model will allow you to add a stylish, self-contained space in your garden that can be used as additional living space in the warmer months. For a summer house that can be used year-round, we recommend adding insulation during installation.
Pent roofing options
We offer three different roofing types for pent summer houses, designed to suit your preferences and budget.
EPDM (Ethylene Propylene Diene Terpolymer) Rubber Roofing: Our top recommendation, EPDM roofing is supplied as a single, continuous sheet with no overlaps – eliminating weak spots. It is supplied with both a spray adhesive for broad coverage and a tube adhesive for precision around the edges. For a polished finish, you can pair this roofing with modern metal roofing trims. This option has a lifespan of over 20 years, ensuring a long-lasting solution.
Easy roofing (High Performance Polyester Base): This roofing option is delivered in 5x1m rolls. It’s self-adhesive backing means no additional glue is required, simplifying the installation process. Similarly to the EPDM option, it can be neatly finished with metal or timber trims and offers a lifespan of over 15 years.
Felt Roofing Kit: For a more traditional look, our felt roofing kit provides standard rolls of roofing felt – similar to those used on many UK garden sheds. The kit includes clout nails and felt glue to secure the overlaps. This option has the shortest lifespan of two to three years and will need replacing over time to ensure your summer house stays in the best condition.
Alternatively, if you prefer to use your own roofing material, you can purchase this model with no roofing option.
What does our summer house kit include?
All of our summer houses are self-build so we provide you with everything you need to build your perfect garden getaway:
28mm interlocking wall logs
Conical tongue and groove for stability
Double door
One opening window
Supporting posts
Quality door and window fittings
Real glass
Fixing kit and instruction manual
Wind and watertight connections (excluding the inclining angles)
Minimum 16mm tongue and groove roof boards
Product dimensions
Overall Dimensions: 6.25 x 3.75m
Internal Cabin Dimensions: 2.49m x 3.49m
Side Canopy: 3.5m
Building Footprint: 6.15 x 3.55m
Overall Height: 2.34m
Door Height (including frame): 1.95m
Overhang (all sides): 0.15m