Tuanse 4 Pack 1.75 x 3 Inch Tall Round High Alumina Kiln Posts Ceramic Shelf Supports Review (2026)

What this kiln post pack is for

This is a 4 pack of round high alumina kiln posts measuring 1.75 inches across and 3 inches tall, sold by Tuanse as part of a wider line of post shapes and heights. The idea is simple: place one post under each corner of a kiln shelf to raise it above the ware below and let heat and air move freely between shelf layers. At 3 inches tall, this particular size gives enough clearance for mugs, small pitchers, and medium bowls without wasting kiln volume on empty space above them. Because the pack contains exactly four posts, it is sized for supporting one shelf, not stacking a whole kiln's worth of levels, so plan your post inventory around how many shelves you actually load in a typical firing.

Features and specs

The posts are made from high alumina material, which is the standard for kiln furniture because it resists the repeated heating and cooling cycles of firing far better than ordinary fired clay. Each post is round rather than square or triangular, which the manufacturer's listing frames as easier to seat squarely under a shelf corner than a post with edges that can rock. The 1.75 inch diameter gives a reasonably wide, stable footprint for a shelf corner, and the fixed 3 inch height means every post in the set matches, so a shelf sits level across all four corners without shimming. Tuanse sells the same round profile in several other heights, from half an inch up to seven inches, so this 3 inch pack is one option within a broader system rather than a one-off product.

Build quality and materials

High alumina kiln posts are valued for withstanding sustained high-fire temperatures without slumping or cracking the way lower-grade ceramic supports can, and that durability is the main selling point of this material choice. The round shape keeps the post's cross-section simple, with no sharp corners to chip during loading and unloading, which matters over years of repeated use in a busy studio. The tradeoff of a round post is that it can roll if it is dropped or set down on an uneven work surface, so it needs a bit more care in handling than a square or triangular post that will simply sit still once set down. Overall the build feels appropriate for its job: unglamorous, functional kiln furniture meant to be stacked, loaded, and reused firing after firing.

Value for the price

A 4 pack covers one full shelf layer, which is a fair unit to buy since most potters need multiples of four to fully outfit a kiln with several shelves. Because this pack is a single fixed height, the value depends on how much of your loading is done at roughly the same clearance; if your work is mostly mugs and shallow bowls, a full set of 3 inch posts can carry most of your firings on their own. If your ware varies a lot in height, you will likely want to pair this pack with posts of a different height to avoid wasting space above short pieces or cramping taller ones, which means budgeting for more than one pack rather than treating this as a complete kiln furniture solution by itself.

Who should buy this and how it compares

This pack suits potters who already know they need 3 inch clearance under a shelf, whether that is a replacement for worn posts or an addition to expand how many shelf levels they can run at once. In a broader roundup of kiln furniture kits, this pack ranked in the middle of the field, behind larger stilt and post kits that include multiple sizes in one purchase and a square post option scored slightly lower for the same use case. If you are outfitting a kiln from scratch, a multi-size kit or a full furniture kit sized to your specific kiln model may serve you better than buying single-height packs like this one. If you just need to add or replace posts at a known height, this pack is a straightforward, reasonably priced way to do it.

Frequently asked questions