Standard Clay Company

Category: Supplier Also called: Standard Ceramic Supply; Standard Ceramic; Ceramic Supply Pittsburgh (retail) Last checked: 2026-09-04

What it is

Standard Clay Company is a moist-clay manufacturer and ceramics-supply house based in Carnegie, PA (Pittsburgh area). Its official site and retail store Ceramic Supply Pittsburgh sell Standard wet clays, casting slip, Standard and partner glazes, materials, and related studio supplies. The FAQs page says they do not offer regular classes (occasional visiting-artist workshops only). It is not a teaching studio and not a membership guild.

Who it’s for

Studio potters, schools, production shops, and hobbyists who need moist or dry Standard clay bodies, casting slip, glazes, or materials shipped or picked up at the Carnegie retail counter. Walk-in and will-call customers use Ceramic Supply Pittsburgh; plant/office ordering goes through Standard Clay Company. This is a supply house and retail warehouse, not a drop-in class studio.

Why it’s listed

This is a first-party supplier operation with printed Carnegie street addresses, weekday and Second Saturday retail hours, 2026 holiday closures, an official online shop with on-page moist-clay prices, and clear packaging/shipping notes — not a scraped directory card and not an Amazon storefront.

• Standard Clay Contact Us (checked 2026-09-04): Office & Plant, 24 Chestnut Street, Carnegie, PA 15106-2072; mailing P.O. Box 16240, Pittsburgh, PA 15242-0240; office phone 412-276-6333. Plant/office hours: Monday–Friday 8:30 a.m.–4:00 p.m.
• Retail walk-ins & pickup: Ceramic Supply Pittsburgh, 1 Walnut Street (One Walnut Street), Carnegie, PA 15106; phones 412.489.5240 / 412.489.5010; email orders@ceramicsupplypittsburgh.com. Retail hours: Monday–Friday 10:00 a.m.–3:00 p.m. and every 2nd Saturday 10:00 a.m.–3:00 p.m.
• Printed 2026 closures on Standard Contact and Ceramic Supply FAQs include New Year’s Day Jan 1, MLK Day Jan 19, Spring Break Apr 3, Memorial Day May 25, Independence Day Jul 3, Labor Day Sept 7, Thanksgiving Nov 26–27, and Christmas-period dates (wording differs slightly between plant and retail pages — confirm the live holiday list before visiting).
• Official shop clay collection (ceramicsupplypittsburgh.com/collections/clays, checked 2026-09-04) lists moist bodies with printed “from” prices, e.g. 100 The Clay Lady’s Clay from $43.50, 101 Hugo Buff from $45.00, 105 White from $43.50, 119 Stoneware from $49.50, 201 Gray Stoneware from $51.00, 257 Grolleg Porcelain from $108.00, 266 Umbria from $69.00. Product page for 101 Hugo Buff: 50 lb moist at $0.90/lb ($45.00), with volume breaks at 500 / 1000 / 2000 lb; cone range and shrinkage/absorption printed on the page.
• FAQs: Standard wet clays are formulated, mixed, pugged, and de-aired; wet bodies pack as two 25-lb bags per carton; all Standard clays available dry (dry packs do not conform to ASTM 4236). Glaze brands carried: Amaco, Mayco, Spectrum, and Standard. Tri-state delivery available (call 412.276.6333 for rates). Second Saturday discounts require phone order and Saturday pickup (not the online cart). ClayPlace@Standard is their gallery for exhibitions.

Hours, holiday closures, and prices above are what the official pages showed on the check date. They can change. Use the live product or contact page before treating any figure as fixed.

Official URL

Manufacturer / company site: https://www.standardclay.com/

Contact, hours, plant address: https://www.standardclay.com/pages/contact-us

Official retail shop: https://ceramicsupplypittsburgh.com/

Shop contact & map: https://ceramicsupplypittsburgh.com/pages/contact

Shop FAQs (hours, packaging, Second Saturday): https://ceramicsupplypittsburgh.com/pages/faqs

Clay collection (prices): https://ceramicsupplypittsburgh.com/collections/clays

101 Hugo Buff (50 lb moist price breaks): https://ceramicsupplypittsburgh.com/products/101-buff-clay

Location

Standard Clay Company office & plant: 24 Chestnut Street, Carnegie, PA 15106-2072. Retail pickup and walk-in: Ceramic Supply Pittsburgh, 1 Walnut Street, Carnegie, PA 15106. Phones: plant/office 412-276-6333; retail 412.489.5240 / 412.489.5010.

These are weekday manufacturing / retail warehouse addresses (plus Second Saturday retail hours). Do not treat them as a walk-in classroom or guild studio.

Notes

• Category is Supplier. They manufacture moist clay and operate an official ceramics supply shop. Not a class studio and not a guild.
• Retail hours of record (2026-09-04): Monday–Friday 10:00 a.m.–3:00 p.m.; every 2nd Saturday 10:00 a.m.–3:00 p.m. Plant/office: Monday–Friday 8:30 a.m.–4:00 p.m. Confirm holiday closures on the live contact/FAQ pages (Labor Day Monday September 7, 2026 is listed closed).
• Moist clay prices printed that day include the 50 lb figures above; volume discounts apply. Homepage/shop notices may change without separate announcement — confirm the live SKU.
• FAQs: they do not offer regular classes. ClayPlace@Standard is a gallery, not a membership open studio.
• Not affiliated with Clay Plaza.
• No Clay Plaza contact, purchase, booking, or publication action was taken.

FAQ

Q: Where do I pick up an order, and what are retail hours?
A: Walk-ins and pickups go to Ceramic Supply Pittsburgh, 1 Walnut Street, Carnegie, PA 15106. Official hours checked 2026-09-04: Monday–Friday 10:00 a.m.–3:00 p.m. and every 2nd Saturday 10:00 a.m.–3:00 p.m. Phone 412.489.5240 or 412.489.5010.

Q: What moist clay prices were printed today?
A: The official clay collection listed 50 lb “from” prices such as Hugo Buff $45.00, Clay Lady’s Clay $43.50, 119 Stoneware $49.50, and Umbria $69.00. The Hugo Buff product page showed 50 lb moist at $0.90/lb with lower per-pound rates at 500+ lb. Confirm the live SKU; prices can change.

Q: Do they teach pottery classes?
A: The Ceramic Supply Pittsburgh FAQs page says no regular classes; they occasionally offer special workshops with visiting artists. ClayPlace@Standard is described as their exhibition gallery.