How Many Yoga Blocks Do I Need?

The short answer

Buy two, matching, bought at the same time. A large share of the poses that use a block use one under each hand or one under each hip, and two blocks of slightly different height or firmness is worse than two identical ones in a way you will notice every session.

Buy one only if you are certain your practice is restorative or seated, where a single prop under a hip or a knee covers almost everything. Buy three if you are working on a specific long-term shape — a supported bridge, a handstand drill, a bolster substitute — and already know which placements you use.

Why pairs, not singles

A block has three heights because it has three dimensions, and the whole design assumes you can set it on any face. That works with one block. What does not work with one block is symmetry.

The poses where this bites are the common ones, not the exotic ones. A supported forward fold wants a block under each hand so your shoulders stay level. Bridge pose with a block between the thighs is one block, but bridge supported under the sacrum while the feet are raised is two. A seated forward bend with a block under each knee keeps the pelvis square; one block tilts you. Supported fish, legs-up-the-wall with a block under the hips and another under the feet, half moon with a hand on a block and a second to extend a short reach — all two.

The mismatch problem is the other half of the argument. Foam blocks vary batch to batch in firmness and very slightly in dimension, dyes shift between production runs, and a block bought three months later will frequently be a touch firmer or a shade off in color. Under your hands, a firmness difference is not cosmetic: one side compresses more than the other and the pose goes crooked. The specific placements are set out in how to use yoga blocks.

How many for which practice

The material matters as much as the count. Foam is right when the block is under skin — a hip, a shoulder, a forehead — and cork is right when you stand on it or press real weight through it, because foam compresses and cork does not. That decision has its own page: cork versus foam.

When one is enough

There are three honest cases, and in all three a second block would sit in a cupboard.

A seated practice. If you sit to breathe or meditate and that is the practice, you need one block or a cushion under your sitting bones to tilt the pelvis forward. A second one has no job.

Pilates rather than yoga. Mat pilates uses a block between the thighs, under the head, or under the sacrum, and almost never as a pair. If pilates is the practice, one block and a small ball is a more useful pair of purchases than two blocks.

You are testing whether props help at all. Fair enough, and that question deserves a straight answer before you spend anything. Buy one cheap foam block, use it for a month, and buy its twin if you find yourself reaching for a second.