When the Number of Spacers Is the Whole Choice
When you're doing cement concrete masonry work by hand, the mortar joint is what holds the look together. Masonry joint spacers keep the horizontal and vertical gaps consistent. The two listings here take the same approach but come in different sizes, and the question is which quantity belongs in your project.
Quick Verdict
For a small wall, a repair, or a first-time DIY project, the smaller pack is the right balance. For a bigger wall that will use a full day's work, the larger pack keeps the job moving. Both are new, made in the United States, and come in 20-piece packs.
Comparison at a Glance
| Listing | Listed Price | Pack Structure | Price Bar |
|---|---|---|---|
| 300 Masonry Mortar Joint Spacer's | USD 60.00 | 15 packs of 20 (300) | |
| 1000 Masonry Mortar Joint Spacers | USD 200.00 | 50 packs of 20 (1,000) |
The two listings share the same basic design: a simple device for setting cement, concrete, cinder block, and brick. Both are listed as new products from the United States. The differences are the quantity and the total price.
Where Each Product Wins
The smaller set is the better fit when you're working on a few courses of block or a short section of brick. You won't be spending extra on spacers you might only use once.
The larger set wins when you have a long wall, multiple walls, or a project that spans several weekends. The extra spacers mean you can leave them in place from one session to the next without re-setting the joints.
Product Notes
300 MASONRY MORTAR JOINT SPACER'S for DIY Block & Bricklaying

The 300-piece listing is the entry point at $60. If you're repairing a section of block or laying a short run, this gives you 15 packs of 20 spacers, enough to keep a few joints consistent without a hefty upfront cash outlay. One limitation is the total quantity: on a longer wall, you'll need to pull and reset spacers as you progress, which slows the rhythm. That's acceptable for a weekend job, but less ideal for a full building project.
1000 MASONRY MORTAR JOINT SPACERS for DIY Block & Bricklaying

The 1,000-piece listing at $200 is a purchase that minimizes interruptions. With 50 packs of 20, you can spread spacers across more joints and leave them in place while you move down the wall. This set is the stronger matchup for larger jobs and multi-day pours. The trade-off is the higher total price: you're out the $200 up front, even if the per-spacer cost works out the same.
Final Choice by Use Case
If you're building a small planter, a single course, or just getting comfortable with masonry, the smaller pack is the more practical spend. If you're building a wall that runs longer than a day, or you plan to use the spacers across multiple phases, the larger pack is the set that lets you stay focused on the joints instead of moving spacers.