Four models
A clear range, without surprises.
Four models, each designed for a specific use. You choose cladding and options; the printed step-by-step manual guides you through the build.
How it works
From configurator to your own garden office.
Four clear steps. You do the build, we make the build possible.
- 01
Configure
Choose model, cladding, door position and additional windows in the configurator. Indicative kit price visible immediately.
- 02
Watch the video series
We document every step in advance — from site selection to interior finishing.
- 03
Order the kit
Self-build kit delivered in four to six weeks from order.
- 04
Self-build
Three to four weekends with our step-by-step manual.
Specification
What actually ships.
EU-manufactured kits, delivered to Germany as a self-build kit. Consultation from North Rhine-Westphalia. Every specification is documented and traceable.
Construction
- Walls and floor: 80 mm SIP panels with a 60 mm EPS100 insulation core and OSB3 skins on both sides
- Roof: 100 mm Izoroof PU panels · anthracite outside, white inside
- Frame: KVH structural timber to DIN 4074-01
- Cladding: Standard 19 mm European spruce, untreated
- Door: UPVC with double glazing · 240 × 210 cm · grey outside, white inside
- Interior height: approx. 213–226 cm clear height, depending on model
Energy and building physics
- U-values: Wall approx. 0.50 · Roof 0.22 · Floor approx. 0.48 · Door 1.4 W/(m²·K) — wall/floor calculated to DIN EN ISO 6946
Delivery and warranty
- Lead time: 4 to 6 weeks from order
- Warranty: 2-year statutory warranty on all delivered parts
- Manufacture: EU-manufactured · Germany-wide delivery · consultation from NRW

Wall build-up — 12.5 cm total

Who is behind it
Konvel is one person.
I'm Matt Barlow, a software engineer in Gelsenkirchen. I started Konvel because I wanted an insulated garden office myself and found nothing between a hardware-store shed and an architect's studio. In the build series I show step by step how a Konvel goes up. I answer questions personally, by email or WhatsApp.
Build series
How a Konvel goes up.
No studio, no actors: we show step by step how the model we sell is built — honestly, every move.
Episode 7
Fitting the door.
Up next
- 08
Cladding the facade.
Coming soon
- 09
Interior and verdict.
Coming soon
Frequently asked
Answers before you ask.
Stay informed
Ask about delivery to your region.
Leave your email and postal code. We reply with delivery times and a non-binding offer.
By submitting, you agree to the processing of your data in line with our privacy policy.
Kit from €8,900
Configure


