Better materials, within reach.
A register of building materials with sustainability and carbon data up front - sourced locally, specified with confidence. Reclaimed timber, natural insulation, and low-carbon concrete from suppliers near you, whether you're specifying a project or doing up your own home.
or browse the whole catalogue · doing it yourself? start with our guides
How it works
Built for sourcing and supplying better materials.
For teams sourcing materials.
- 01
Search the register
Filter by material, certification, or how far it has to travel.
- 02
Compare the carbon
Read embodied-carbon figures and EPDs side by side - no guesswork.
- 03
Request direct
Message the supplier yourself. No middlemen, no markup.
For teams supplying materials.
List your materials for free
Publish specs, certifications, and sustainability credentials in one profile. No subscription or listing fees.
Build trust
Add certifications and carbon data as you go. Verified credentials get a badge buyers can see.
Win the work
Reach architects, builders, and home renovators actively sourcing for their projects.
Free to list · No subscription
Browse by category
Every category, sourced sustainably.
Timber & Wood
Structural CLT, cladding & reclaimed stock
Insulation
Wood fibre, sheep wool, hemp & cork
Windows & Glazing
Timber, aluminium & triple glazing
Aggregates & Concrete
Recycled aggregates & low-carbon concrete
Masonry & Stone
Lime mortars, hempcrete, clay brick & stone
Finishes & Coatings
Natural paints, oils & sealants
Resources
Learn before you buy.
Alternatives to PIR Insulation
Lower-impact insulation options, and when to specify each one
How to Read an Eco Label as a Homeowner
FSC, PEFC, EPD, Blue Angel and more, without the architect-speak
Embodied Carbon Explained
What it is, why it matters, and how to reduce it through better material choices
Wood Fibre Insulation
A low-impact alternative to PIR and mineral wool
Build with better materials.
Compare materials with sustainability and carbon data where suppliers share it, or list your own for free and reach the people building with them.