Products
Concrete & Masonry
Two cells, not three. Ask us why - or read on.
What we stock
Cement, block & mixes
- Portland & white cement
- Lime and Easy Spread lime substitute
- Sakrete concrete, mortar, sand mix & non-shrink grout; bagged asphalt
- Concrete block - 4", 6" and 8" two-cell, 12" regular and column
- Breaker, bond beam and cistern block
Repair, waterproofing & accessories
- SikaTop 123 Plus, SikaQuick VOH
- Xypex waterproofing admix and repair
- Bonding agents & adhesives
- Curing compounds, form oil, hardeners
- Expansion joint, PVC waterstop, snap ties (regular & fiberglass)
- Parex stucco primer & finish (5-gal)
- Diamond Brite pool finish - 5 blues in stock
SakreteSikaXypexParexDiamond BriteDayton Superior
Why we only sell two-cell block
Look at our 6" and 8" block and you'll see two cells, not three. Most VI builds have every cell reinforced and filled solid - the bigger cells are far easier to fill and to line up properly staggered, and the block is lighter to handle. Island Tough - why settle for less? Read more.

Sakrete - 30+ years
MSI has carried Sakrete for more than thirty years. Ready-mixed mortar and sand mixes give the same result batch after batch: no sand to pick up and sift, just add water.
Finishes
We keep Parex stucco primer and finish in stock - take the base next door to Sea Chest Ace and they'll tint it to your colour. The five most popular Diamond Brite pool blues are always in stock; other SGM colours arrive in about 10 days.




