Variable tunnel diameters: — Different solitary bee species need different tunnel widths. Red mason bees, leafcutter bees, masked bees — each requires a different diameter. The BeeTreasure offers the full range across multiple tiers. One size fits none. A range fits all.
Solid untreated Western red cedar — No paint. No lacquer. No chemical smell that deters bees. Cedar is naturally rot-resistant and has been used in outdoor structures for centuries. At 19mm wall thickness it insulates — nest warmth stays in during cool British springs; the interior stays cool during summer.
Hand-formed copper roof — Channels rain completely away from the nesting face before a drop reaches the wood. Copper doesn't rust, doesn't crack, and develops a patina that only improves with age. Clayton has seen plastic roofs split after a single British winter. Copper outlasts everything else in the garden.
Mirror-smooth tunnel interiors — Every tunnel is hand-sanded until completely smooth. A bee enters and exits her tunnel thousands of times during nesting season. Any roughness causes wing damage over time. "Run your little finger inside. If you feel anything at all — the tunnel isn't ready."
Solid rear panel — Parasitic wasps attack solitary bee brood from behind, drilling through thin rear panels to reach the larvae. Clayton's solid rear wall makes this impossible. The nesting chamber becomes a secure, protected environment for the entire brood cycle.