Adjustable Aircrete Block Forms


Adjustable Aircrete Block Forms are made in the USA with high-quality recycled HDPE.

Block sizes can be adjusted to the following measurements:

  • Height: 11.5”
  • Thickness 3.75”, 5.5”, 7.5”, or 11.5”
  • Length: 11.625”, 23.5”, or 47”

Each form makes 36 blocks 11.5" X 3.75" X 11.625"

The total form dimensions assembled are 24" x 72" x 12". 84 gallons of Aircrete made with two bags of cement fill each form.

*The forms are shipped on an oversized pallet by freight truck.

We want to make sure you get the best price possible:

*Shipping costs vary significantly by location. It is possible that what you are charged through the online store could be higher or lower than the actual cost. For an accurate quote, please email with your name, shipping address, phone number, and the number of forms you are interested in.


Together we can build low-cost, simple, and beautiful homes that have a positive impact on ourselves and the world around us. 

Steve's Architectural Drawings, your digital copy of our Workshop Manual and important logistical details will be emailed to you several weeks before the start of the workshop (or immediately upon registration if you sign-up less than 2 weeks of the workshop start date).

We look forward to meeting you and creating together!

★ Folks cancelling more than 4 weeks prior to the first day of the workshop will receive a full tuition refund, minus any processing fees.
★ Those cancelling 2 - 4 weeks prior to the first day of the workshop will receive a half tuition refund, minus fees.
★ No refunds for cancellation requests made less than 2 weeks prior to the first day of the workshop.
★ If the workshop has to be cancelled for some reason, you will receive an immediate full refund.