About PotterySuppliesHQ
PotterySuppliesHQ exists because clay is heavy and priced in four different units. On the four suppliers indexed here the same product is printed as a per-kilogram figure, as a bag price excluding tax, as a column in a table of bag quantities, and as a 'from' price that is really the single-kilogram rate. A buyer comparing those numbers as they are printed is not comparing anything. This site does one thing: it fetches each supplier's own product page, quotes the price exactly as printed, records the bag size the page states, converts to a price per kilogram excluding VAT, stores the date and a hash of the page text, and publishes them side by side. Nothing here is estimated or scored. Where a supplier prints no bag price, the cell says so. Where a supplier could not be read at all, it is named as absent rather than quoted from memory.
Why this site exists
This site exists because clay is the one material a maker buys by weight and almost nobody prices by weight. The four suppliers indexed here print the same kind of product in four different units: Potclays prints a per-kilogram figure for every bag size, inc VAT and ex; Bluematchbox prints one bag price excluding tax; CTM prints a table whose first column is one 12.5 kg bag and adds VAT and delivery afterwards; Bath Potters prints 'from GBP 3.00', which is the price of the single-kilogram option and about three times the bag rate. Read as printed, those four numbers compare nothing at all. Converted properly, they show something a buyer cannot see from any one page: Potclays and Bluematchbox sell the identical body under the identical manufacturer code, 157-1143, and the maker is about a fifth dearer than the stockist. That is the whole job here - fetch what the page prints, quote it word for word, record the bag size it states, convert to one honest unit, and date it.
Who it is for
A hobby or studio potter about to order clay, glaze materials or kiln furniture with their own money.
A teacher or technician buying for a class, where the quantity ladder and the carriage matter more than the headline.
Anyone who has been told that buying direct from the manufacturer is cheaper and would like to see whether it is.
What it does not do
- No review scores, no star ratings and no 'best supplier' verdict: this site ranks suppliers on their own printed prices and nothing else, and an opinion it cannot source is not evidence it will publish
- No estimated, converted-from-memory or filled-in figures: a supplier that prints no bag price is listed with that fact rather than with a number, which is why Bath Potters carries an empty price cell instead of a 'from' price used as though it were a bag rate
- No glaze is described as food safe anywhere on this site except by quoting the manufacturer's own data sheet for a stated firing schedule: that is a claim about one glaze fired one way, never a property of a brand
- No method for handling silica-bearing materials is published without the dust control beside it, and no page treats a respirator as optional on a job that makes dust
- No paid placement: commission never changes a figure, the sort order or whether a supplier is listed
What is on this site
6 guides, each with its sources on the page , 153 answers to the questions around them , and the comparison.
- Air dry clay: Air dry clay is the biggest single thing people search for on this shelf and the one most often bought for the wrong job.
- Pottery wheel: A wheel is the one purchase in pottery that people research for months and then buy on price, and the two things that actually decide whether you keep using it are torque and mass.
- Pottery kiln: The kiln is the expensive decision, and the mistake people make is treating it as a size question when it is first an electricity question.
- Pottery clay: Clay is bought by weight and compared by name, which is why so few people know what they are paying.
- Pottery glaze: Glaze is where pottery stops being a craft and becomes chemistry, and there are two entirely different ways to buy it.
- Pottery tools: Almost every pottery tool set contains four things you will use constantly and eight you will not.
Where the figures come from
Pottery clay prices (GBP per kilogram, ex VAT) verified against each supplier's own product page on 2026-09-09 by infra/ingest/hubs/potterysupplieshq.com/ingest_vendors.py: every quoted figure re-fetched and matched verbatim (hash-pinned), converted from the bag size the page states; class coverage evidenced by the supplier's live category page.
Who answers for it
Joseph Ellul, Publisher of PotterySuppliesHQ; the person who runs the price ingest, reads every correction sent from this site and answers it.
Reach us
Contact for a question about the site, or contact@potterysupplieshq.com. The legal terms are on Terms and Privacy.