DIY Glevum Garden Room Kit

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The Premier Glevum garden room is a striking model in our range, featuring an apex roof with a maximum exterior height of 3 metres. This allows more internal room while still achieving height requirements for permitted development if the room is located 2 metres from boundaries.

With glazing offset to one corner, this self-build room is efficient in the use of space, offering a versatile and stylish insulated garden room for year-round use.

Installed Glevum Garden Room

Customise Your Glevum Garden Room Kit

Select specifications, build stage, and sizes using our garden room designer. You can also select cladding, glazing, decking, and extras on our Premier models.

Premier DIY Garden Room Kit Build Stages

The Glevum garden room is available as Shell, Shell & External, and Complete kits. Compare what is included at each build stage below.

Shell Kit

The Shell Kit is the core structural package. Premier uses thicker SIP wall and floor panels and is available in a wider choice of sizes, including bespoke sizes.

Specification	Premier
SIP wall and floor panels	122 mm thick with 100 mm insulation
PIR-insulated composite roof	80 mm on most sizes; 100 mm on sizes 4.0 m deep and above
SIP floor underside	Bitumen coated
Floor bearers	Water-resistant
Door opening and lintel	Sized to room from 0.75 m to 2.8 m
Pre-cut splines, timber cappings, floor and top plates	Included
Fixings	Screws and timber locks included
Expanding foam and wood glue	Included
Front overhang	400 mm
DPC and rain sheet	Included
Instruction guide and video	Included
Technical drawing	Included, with ground screw layout if required
Sizes	Standard sizes plus bespoke sizes available

Shell & External Kit

Includes everything in the Shell Kit, then adds the cladding, glazing and external finishing package.

Specification	Premier
Includes	Shell Kit
External cladding	Choice of cladding plus 10% extra
uPVC glazing	Included for room size and lintel; upgrades available
Breather membrane	Included
External cavity batten	Included
Guttering and downpipe	Included
Stainless steel brad nails	Included
Mixed cladding	Available
Additional windows and doors	Available

Complete Kit

Includes everything in the Shell & External Kit, then adds the internal finishing materials.

Specification	Premier
Includes	Shell & External Kit
Internal wall finish	Decorative MDF or Plaster finish
Paint	Internal walls and ceilings
Laminate flooring and underlay	Included
Skirting and architrave	Included
Scotia and trims	Included