The shelter: full specification
Complete technical data for the monolithic pysanka shelter. Numbers over adjectives.
Download spec sheet (PDF)The PDF spec sheet is a placeholder — swap in the final file.
Undergoing certification testing to ДСТУ 9329:2025
Testing with the State Emergency Service is in progress. We do not call the shelter certified until the document is in our hands.
Protection from fragments, blast wave and structural debris. Protection from a direct hit is not claimed.
Geometry and capacity
- Internal diameter
- 3.2 m
- Internal height
- 2.6 m
- Capacity
- 8–10 people
- Floor area
- 8.0 m²
- Internal volume
- ≈ 17 m³
Wall build-up
- Concrete
- C40/50, fibre-reinforced
- Reinforcement
- Two meshes, spacing per calculation
- Shell thickness
- 200–260 mm, variable section
- Inner liner
- Polyurea membrane
- Casting
- One continuous pour, no construction joints
Door and valves
- Base
- Ukrainian-made blast door
- Premium
- Temet (Finland) blast door
- Valves
- Blast valves on intake and exhaust
- Emergency exit
- Hatch on the opposite side of the shell
Ventilation and power
- Natural ventilation
- Intake and exhaust through valves
- Mechanical
- Fan with manual backup
- Premium
- Temet filtration unit, optional CO₂ scrubber
- Backup power
- 48 h for light and communications
Berm, transport, installation
- Earth berm
- 0.6–1.0 m over the shell recommended
- Transport envelope
- Under 4 m — no oversize permit
- Weight
- By configuration, lifted by mobile crane
- Site preparation
- Compacted 200–300 mm gravel pad with drainage
- Installation time
- 1 working day
Cross-section and 360° view
An interactive shell viewer goes here. The slot for the 3D model is reserved.