How to Block Crochet Squares and Motifs

Blocking means shaping finished crochet pieces with moisture and pins so they dry flat and to the same size. It is the step that makes motifs line up neatly, lets lace open up and makes joining much easier.

What you need

Foam blocking mats or a clean towel on a flat surface
Rust-proof stainless steel or plastic-head pins
A spray bottle, a basin of cool water, and a tape measure

Three methods

Wet blocking (best for cotton and most wool)

Soak the motifs in cool water for 15–20 minutes. A drop of gentle wool wash is optional.
Press the water out gently. Do not wring or twist.
Roll them in a clean towel to remove extra water.
Lay them on the mat, shape each one to the target size, and pin the corners and points.
Leave them to dry completely, usually 12–24 hours.

Spray blocking (quick, good for small projects)

Pin the dry motif to size on the mat, spray until it is damp all the way through, and leave it to dry. It uses less water and is good for wool, cotton and blends.

Steam blocking (use with care)

Pin to size and hold a steam iron or steamer a couple of centimetres above the piece without touching it. Never press the iron onto acrylic. Heat can permanently flatten or melt acrylic and ruin the stitches. If your label says acrylic, use cool wet blocking or a light steam from a distance and test a swatch first.

Tips for neat results

Block all motifs to the same measurements. Use a ruler or draw a template on paper under the mat.
For hexagons, stars and flowers, pin each point so the edge between points stays straight.
Use more pins than you think. Pin the lace loops and scallops one by one for a crisp edge.
Check colours first. Dark or bright dyes can bleed when wet, so test a spare piece first and keep reds and darks apart from cream.
Do not move the motifs until they are completely dry.

When to block

Block each motif before you join them, then block the whole bedspread again lightly after the border if it needs it. Joining pre-blocked motifs is faster and gives straighter seams. See how to join crochet motifs next.