How do large concrete blocks differ from cinder blocks?
Large interlocking blocks are heavy units used for material bays, site layouts and ballast. Cinder blocks usually means smaller, hollow concrete masonry units used in building construction.
| Product | Typical dimensions | Approximate weight |
|---|---|---|
| Our full interlocking block | 6′ long × 2′ wide × 2′ high | 3,600 lb |
| Our half interlocking block | 3′ long × 2′ wide × 2′ high | 1,800 lb |
| Common hollow masonry unit | 8 × 8 × 16 inches | Varies by product |
Concrete Blocks Direct supplies large interlocking blocks, not hollow masonry units.
What people usually mean by cinder block
The Concrete Masonry & Hardscapes Association describes common masonry modules with faces eight inches high and sixteen inches long. Thickness and actual unit dimensions vary.
Source: CMHA, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications.
Plan equipment for heavy-block handling
Large blocks require lifting equipment. Use the actual block weight and lifting provisions to select the handling method. Tell us about site access and unloading arrangements when requesting delivery.
The regional names help narrow the search
Bin blocks, mafia blocks and ecology blocks are names for the heavy-block category. Our block names guide explains the terminology.
Request blocks and delivery in one quote
Choose full, half or corner blocks, then send your quantity and delivery ZIP. Full and partial loads are available nationwide, with no minimum order.
Concrete and cinder block questions
Are concrete blocks and cinder blocks the same?
Not in this catalog. We sell large, solid interlocking blocks handled by equipment. Cinder block usually means a small hollow concrete masonry unit used in building construction.
What size is a standard cinder block?
A common size is 8×8×16 inches, compared with our full block at 2×2×6 feet. A hollow masonry unit can weigh around 35 lb, but its weight and actual dimensions vary by product. Our full block weighs about 3,600 lb.
Can I buy these at Home Depot or Lowe's?
Our heavy blocks are supplied from concrete plants and delivered by flatbed, rather than sold as the small masonry blocks on retail shelves. Order through Concrete Blocks Direct for a combined block-and-delivery price; check a retailer directly for its current specialty inventory.

