Build a Mason Bee House

  • Saturday, February 23, 2019
  • 9:00 AM - 12:00 PM
  • BARN Woodshop, Class Code: WO022319JH
  • 2


  • $43 + $47 materials fee
  • $33 + $47 materials fee

To register and pay off-line, please call the registrar at (206) 842-4475 x216 or come into BARN.

Be sure to "Join Waitlist" if this class fills (there is no cost to do so) and we will notify you if a seat opens up or this class gets offered again.
Registration is closed

Build a house for orchard mason bees, the gentle natives that are super-efficient pollinators. Or even better, enlist a kid and sign up as a team to build one.

In this class, you will learn about these amazing bees, their needs and what makes them so much fun to raise. Unlike honeybees, which are not native to North America, orchard mason bees do not have the social structure of a hive, so there is no need for them to aggressively protect one. Thus, there is very little chance of getting stung. But the bees still pollinate flowers, so encouraging them is one way to ensure a bountiful crop of apples, plums and other treats.

Working with mostly pre-cut parts, you will construct a cute cedar hut that shelters trays with grooves that fit parchment tubes, which you will also learn to make. The mother bees go into the tubes to lay their eggs and leave little packets of food. As the eggs hatch, the larvae grow and eventually create cocoons to protect the pupae until they hatch the following spring, starting the cycle over again.

As a bonus, BARN member Sally Swanson will give each participant or team a supply of cocoons.Thanks to Sally's generosity, you will also receive a supply of parchment sheets so you can make the tubes and a organza bag to store the egg-filled tubes beginning in June. The fine-mesh fabric protects the developing larvae from being infested with predator wasps. (If you go online to check retail prices for these items, you'll realize that they could cost more than the fee for this class.)


  • Open to anyone 8 years old and older, but those younger than 14 must be accompanied by an adult. For a child/adult team, please register as one person and plan on building one bee house.
  • In October, you will be invited to a session where you can learn how to harvest the cocoons. clean off any pollen mites, and safely store the cocoons  until spring, when you will need to place them in the release box — that cute drawer-like feature just under the roof, which you will also build on the first day of this class. The date of this activity will be emailed to class participants later. If you cannot make the scheduled date, we will email you the information.

Instructor: Josh Haza. Josh has been building furniture for his home and doing home renovations for a few decades now. He also built equipment for high school physics classes he taught.


Close-toe comfortable shoes are required.

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