Knitting Blocking Mats and Pins Interlocking Set - Extra Thick 12x12

Our review of these Knitting Blocking Mats and Pins finds them best suited to knitters and crocheters who need a reliable, reusable surface for shaping lace, garments, and blankets. The single biggest reason to buy is the combination of extra-thick, high-density EVA foam and a precise grid, which holds T-pins firmly so projects stay taut during wet or spray blocking. The set arrives as 12 by 12 in interlocking tiles with a storage bag and a supply of T-pins on most orders, making it a practical, portable blocking solution.

Key Features

• Extra-thick EVA foam: The 0.75 in thickness and high-density construction keep pins deeply embedded and projects securely in place while blocking.
• Interlocking 12 by 12 in tiles: Tiles assemble into larger layouts such as 36 by 36 in or custom shapes, so users can block small motifs or larger garments.
• Precise grid lines: Built-in alignment markings let you square up edges and replicate measurements consistently across projects.
• Waterproof surface: The foam resists water damage so wet blocking or accidental splashes can be wiped dry without harming the board or grid.
• Included storage bag and pins: A carry bag keeps tiles and accessories together for travel, and the T-pins supplied on many orders provide immediate readiness for blocking.

Who It's For

This set is aimed at hobbyists and serious stitchers who block regularly: lace knitters, crochet garment makers, and needlepoint crafters who need a reliable, reusable work surface. The modular 12 by 12 in format is especially convenient for small studios, classes, or makers who like to work on multiple small pieces at once.

Less suitable are crafters who want a single rigid large board out of the box or those who need very thick industrial blocking walls; this product is modular foam tiles meant for layout flexibility rather than a one-piece heavy board.

Pros & Cons

Pros

• High-density 0.75 in EVA foam provides strong pin retention and long-term reuse.
• Modular 12 by 12 in tiles allow custom layouts up to 36 by 36 in or larger when expanded.
• Waterproof surface and clear grid lines simplify wet or spray blocking without warping.
• Includes a storage bag for portability and T-pins on many orders for immediate use.

Cons

• Some buyers report not receiving pins in their shipment, so check contents on arrival.
• Tiles are foam rather than a single rigid board, which may not suit those wanting one-piece rigidity.

Specifications

Material	EVA foam (non-allergenic)
Tile size	12 by 12 in
Assembled size	Up to 36 by 36 in (or custom shapes)
Thickness	0.75 in
Included accessories	150 T-pins (commonly included) and storage bag
Surface	Waterproof with grid lines

Our Verdict

This set is a practical choice for knitters and crocheters who value flexibility and reliable pin retention; the extra-thick EVA tiles hold T-pins well and the grid simplifies alignment, making it good value for hobbyists and small-studio makers who want a portable, reusable blocking system.

Frequently Asked Questions

Are the tiles water resistant?
The surface is waterproof and can be wiped dry after wet or spray blocking without damaging the grid.

What assembled sizes are possible?
Tiles are 12 by 12 in each and can be combined into 36 by 36 in or other custom layouts to match project size.

Are T-pins always included?
Many orders include 150 T-pins, but some customers report receiving no pins, so inspect the package and contact the seller if pins are missing.