Project type

SIP kits for garden rooms

Counted wall and roof SIP panels for a garden room SIP kit. You or your builder cut openings on site, then add cladding, glazing and roof covering.

Design & Quote WhatsApp 01865 537900

Cedar-clad L-shaped garden room with glazed corner and lawn

How sipsonline fits

Panels and SIP kits — not a turnkey building

Popular starting points: 12×12 ft (£1,854 SIP122 EPS) and 16×12 ft. Confirm size on the sizes hub.

1. Pick a size

Use the sizes hub or send L × W on WhatsApp.

2. Choose core

Headline SIP122 EPS £103, or PIR / other thicknesses on panels.

3. Add extras

Windows, cladding, EPDM, ground screws — all quote-led.

4. Assemble on site

Openings cut on site. Fitting by you or your builder unless we quote it.

Design & Quote WhatsApp 01865 537900

Photos

Project photos

Real sipsonline photos, with general captions.

Dark-clad garden office on gravel with full-height glazing

Render of a two-storey house with bi-fold games room, roof terrace and deck

Grey rear extension with bifold doors beside a brick house

Project types

Choose the project route

Garden rooms, offices, annexes, outbuildings, gyms, garages and extensions use the same SIP panel and SIP kit pathway. Choose the closest use case below.

Garden offices

Charcoal-clad garden office at sunset — finished look example

A warm, quiet SIP kit for a work-from-home office. We supply the SIP panels; openings, windows and finish are yours to plan.

Many offices land on 12×8 ft or 12×12 ft. Need a different plan? Ask on WhatsApp with rough L × W.

See also: Design and quote · Project gallery

Annexes

An annexe SIP kit is still walls + roof SIP panels. Habitable use needs proper design, services and approvals, arranged by you or your designer.

Start with 12×12 ft or 16×16 ft, then read planning & regs (general UK guidance).

See also: Design and quote · Project gallery

Inside a finished annexe: photos below

Outbuildings

Twin grey garden buildings in a rural setting

Stores, workshops, games rooms and utility outbuildings on the same 1.22 m module. SIP kit only. Fit-out is yours.

Browse all SIP kits or pick panels from SIP panels.

See also: Design and quote · Project gallery

Gyms and studios

Render of a dark-clad garden gym with sliding glass doors

Stable, insulated SIP kits for gyms, music rooms and creative studios. Bi-folds and cladding are quote-led extras.

Photo examples on site show finished rooms — glazing and cladding are not in the SIP kit price. See 16×12 ft and bi-fold doors.

See also: Design and quote · Project gallery

Golf simulator room photos below

Garages

Double garage with a cedar-clad dormer above

Larger footprints for single or double garage SIP kits. Wall height 2.44 m on standard packs. Door openings cut on site.

See 20×16 ft, 24×16 ft and 24×20 ft. Vehicle door sizes and lintels are your builder’s detail — confirm on quote.

See also: Design and quote · Project gallery

Garage build stages: photos below

Home extensions

Brick-slip gable extension under construction

Fabricated SIP panels for extension SIP kits. Structural design, Party Wall and Building Regulations are separate — we supply the panels.

Buy by the panel on products, or ask for a counted take-off from your drawings via Design & Quote.

See also: Design and quote · Project gallery

Annexes

Inside a finished annexe

Interior fit-out shown is by the customer; the SIP kit supplies the insulated walls and roof. The ceiling has recessed linear LED strips set in geometric lines.

SIP panel ceilings can take recessed lighting channels as part of your fit-out.

Games room with pool table, corner sofa and recessed linear LED ceiling lighting — Games room · recessed linear LED ceiling lighting

Pool table, bar fridges and bi-fold doors inside a finished annexe — Bar fridges and bi-folds

Annexe lounge with wall-mounted TV and sofa — Lounge with TV wall

Wide view of a finished annexe with bi-folds onto the deck and recessed linear LED ceiling lighting — Bi-folds onto the deck · recessed linear LED ceiling lighting

Annexe shower room with herringbone floor — Shower room with herringbone floor

Garages

Garage build stages

One garage, from steel and gables to a finished gym and bedroom conversion.

Build stages

Steel beam and blockwork gables on a garage build — Steel and gables going up

Blockwork gables on a garage build on a foggy morning — Gables in the fog

Garage roof battened with the dormer framed — Roof battened, dormer framed

Dormer framing on the garage roof — Dormer framing

Finished: garage conversion to gym and bedroom

Finished house with a double garage and cedar-clad dormer — Garage with dormer, finished

Garage converted to a gym with a rack, dumbbells, oak door and herringbone floor — Gym in the converted garage

Garage gym with rack, bar area, sofa and bi-fold doors — Gym with bar area and bi-folds

Bedroom in the roof above the garage with a sloped ceiling and dormer — Bedroom in the roof above the garage

Gyms and studios

Golf simulator room

A SIP kit makes a quiet, insulated room for a golf simulator: Trackman screen, acoustic wall treatment, padded panels and seating. Fit-out is yours or your builder's; we supply the SIP panels.

Golf simulator room before fit-out with dark acoustic walls and green hitting mat — Before fit-out

Golf simulator interior with green padded wall panels and Trackman screen — After fit-out: green padded panels

Golf simulator beneath a sloped ceiling with Trackman display — Sloped ceiling

Acoustic wall panels beside a golf simulator screen — Acoustic wall panels

Golf simulator room render with sofas on the left — Concept view: sofas left

Golf simulator room render with sofa seating on the right — Concept view: sofa right