Tired of throwing the same old boring forms? Let’s test the limits to see what clay can do. This higher level (intermediate to advanced), 1-day class will explore bottles, closed forms, double-walled pieces and more.

The best part? There’s absolutely no pressure to get any of this right - we’ll be focusing on technique only and not actually making any pieces to keep. So get bold and take those advanced forms all the way to the limit!

This class takes place at Groundworks HILL, 1010 Aurora Avenue, Boulder, CO. 

PLEASE NOTE: This one-time class runs for 2.5 hours. You will not have access to the studio outside of the scheduled class time and all work will be completed during class time. You will also not have access to our other locations.

Ages: 16+

Available for registration Friday, May 30th at 8:00am

The Mosaic class will teach glass cutting, design placement and grouting.  Mosaics is destined to become your new favorite hobby!  You're welcome to continue this class if you have taken it before and make your own project(s).   All materials are included. Students leave the class with their very own, unique mosaic project to display or use.  No prior experience needed.

Ages: 16+

Will be available to register on Friday, May 30 at 8:00 am.

Hate glazing? You’re not alone. Join us for this special one-time, higher level (intermediate to advanced) class exploring an alternate surface treatment called Terra Sigillata (Sig - pronounced ‘sij’ - for short). Terra Sigillata means “sealed earth” due to it being a super refined slip that leaves your pieces with a silky, smooth finish.

Terra Sig goes on best with bone-dry pieces, so Groundworks will provide flat tiles or cylinders to practice on. We’ll fire them after the class and let you know when they’re ready for pick-up. Come get a crash course in this ancient decoration technique.

This class takes place at Groundworks MAIN, 3750 Canfield Street, Boulder, CO. 

PLEASE NOTE: This one-time class runs for 2 hours. You will not have access to the studio outside of the scheduled class time and all work will be completed during class time. You will also not have access to our other locations.

Ages: 16+ 

Available for registration Friday, May 30th at 8:00am

Are you lazing in your glazing? Sleeping on slip? Craving more carving? Let’s dig into it! In this one-time 2.5 hour class, we’ll do a deeper dive into surface decoration techniques such as sgraffito, mishima, carving through wax, and using slip as texture. 

Groundworks will provide flat tiles in a variety of different clay bodies for students to practice surface decoration on. Students can pick if they want their final pieces clear glazed or left raw, and after a few weeks, our staff will let you know when your pieces are out of the kiln and ready for pick-up.

This class takes place at Groundworks Hill 1010 Aurora Ave, Boulder, CO. 

PLEASE NOTE: This one-time class runs for 2.5 hours. You will not have access to the studio outside of the scheduled class time and all work will be completed during class time. You will also not have access to our other locations.

Your pieces will be fired in our gas kilns to Cone 6 Reduction. 

Ages: 16+

Available for registration Friday, May 30th at 8:00am

Always wanted to try the potter's wheel, but didn't know where to start? This class is a great intro to the wheel in 5 short weeks!

This class is intended to get you familiar with the basics of throwing on the potter's wheel. Students will have 3 weeks of throwing instruction, one week of trimming, and one week of glazing. This class is ideal for those who have limited experience and want to learn the basics of centering, trimming and glazing, with a short instructor demo and hands-on assistance each week.

Please note: This class does not include Open Lab hours or additional clay.

Ages 16+ to register

Class meets weekly on SUNDAYS.

All pieces will be fired to Cone 6 in a reduction kiln.

Will be available to register on Friday, May 30 at 8:00am.

Always wanted to get involved in a pottery studio, but didn't know where to start? This class is a great intro to the studio in 5 short weeks!

This class is intended to get you familiar with the basics of wheel-throwing and hand-building. Students will have 2 weeks of throwing instruction, one week of trimming, one week of hand-building, and one week of glazing. This class is ideal for those who have limited experience and want to learn the basics of the potty studio, with a short instructor demo and hands-on assistance each week.

Please note: This class does not include Open Lab hours or additional clay.

Ages 16+ to register

Class meets weekly on SUNDAYS.


This class is Pay What You Can with a suggested price of $195.

All pieces will be fired to Cone 6 in a reduction kiln.

Will be available to register on Friday, May 30 at 8:00am.

Stack on stacks on stacks! Come learn how to throw and stack cylinders or bowls to create larger forms. In this 2-week higher level (advanced/Level 3) class, we’ll explore the techniques necessary to make seamless joints and robust pieces like moon jars.

Week one will be spent throwing the individual components, and week two will be putting them together. We’ll have a handful of glaze options to choose from, and staff will fire and glaze the pieces for you and give you a ring in a few weeks when they’re ready for pick-up.

This class takes place at Groundworks HILL, 1010 Aurora Avenue, Boulder, CO. 

PLEASE NOTE: This two-week class runs for 2.5 hours each week. You will not have access to the studio outside of the scheduled class time and all work will be completed during class time. You will also not have access to our other locations.

Your pieces will be fired in our gas kilns to Cone 6.

Ages: 16+

Available for registration Friday, May 30th at 8:00am

It carves smooth and gives you clean lines - that's what makes linoleum block printing so dang satisfying. This 4-week introduction to relief printmaking is great for those who have limitied experience, but an appreciation for ASMR.

Each week, students will get instruction in introductory techniques, including carving a linoleum block, mixing and rolling ink, and making a print using the press. Get in on the fun!

Ages: 16+ 

All supplies and materials will be provided. 

Will be available to register on Friday, May 30 at 8:00 am.