Foundations & Structure
Masonry & Block Construction
Concrete block walls, reinforced cells and poured tie beams built to engineered drawings – the structural shell of many Florida buildings.
Overview
Concrete masonry units – CMU, or concrete block – are the wall system for a large share of Florida homes and commercial buildings. A block wall is more than stacked units: it is reinforced with vertical steel in grouted cells, locked together at the top by a poured concrete tie beam, and fitted with lintels over every opening and embedded connectors that tie the roof down.
We manage block construction from layout to the tie beam pour, with specialist masonry trade partners laying the walls to the structural drawings. Most of what makes a block wall perform in a storm is hidden once the stucco goes on, so we check steel placement, cell grouting and connector locations before each step is covered.
Who it’s for
- New homes and additions designed with block exterior walls
- Commercial buildings, retail shells and warehouses with load-bearing or infill masonry
- Stem wall foundations that use block to raise the floor
- Site walls, screen walls for equipment and garden walls that need reinforcement and footings
- Existing block homes getting new openings or block additions tied into the original walls
What’s included
Typically included
- Wall layout from the foundation, with openings, bucks and rough sizes checked against window and door schedules
- Block laying with mortar joints, bond pattern and plumb and level checked as walls rise
- Vertical reinforcing steel and dowels placed where the structural drawings call for filled cells
- Grouting of reinforced cells, with cleanouts or inspection points where required
- Precast or poured lintels over windows and doors, sized to the opening and the engineer’s schedule
- Forming, reinforcing and pouring the tie beam (bond beam) at the top of the wall
- Placement of truss straps, anchor bolts and embedded connectors in the tie beam per the truss and structural layouts
- Coordination of electrical and plumbing chases or conduit set in the wall where planned
- Scheduling of required inspections before cells are grouted or the tie beam is poured
Common exclusions
- Structural design – walls, lintels and tie beams follow drawings sealed by a licensed engineer
- Stucco, paint and other exterior finishes, priced as part of the exterior
- Decorative stone or brick veneer unless specified
- Repair of cracked or deteriorated existing masonry, which may need an assessment first
Every proposal lists its own inclusions and exclusions in writing.
Materials, design options & upgrades
How pricing works
Masonry is normally priced by the square foot of wall area, measured from the elevations and floor plan, with tie beams, lintels and filled cells counted from the structural drawings. An estimate is built from wall heights, total wall length, the number and size of openings and the reinforcing schedule.
Because so much of the cost sits in reinforcement and concrete rather than the block itself, two walls of the same area can be priced quite differently. When block is part of a new home or addition, it is priced within that project’s budget.
What changes the cost
- Wall height and total wall area
- Number of reinforced, grouted cells shown on the drawings
- Number and size of openings and their lintels
- Tie beam size and any intermediate bond beams
- Block type – standard, architectural or insulated
- Multi-story work and the scaffolding it needs
- Site access for block delivery and concrete pumping
If this work is part of a larger project, it’s priced within that project’s budget — please don’t add separate estimates together. Read the pricing guide.
Typical stages
Layout and dowel check
Walls and openings are laid out on the slab and the foundation dowels are checked against the drawings.
Lay block
Masonry trade partners lay the walls course by course, setting bucks and rough openings as they go.
Steel and grout
Vertical bars are placed, cells are inspected where required, and the reinforced cells are grouted.
Lintels and tie beam forming
Lintels are set over openings and the tie beam is formed and reinforced around the top of the wall.
Connectors and inspection
Truss straps and anchors are placed to the layout, we check spacing and locations, and the tie beam is inspected.
Pour and strip
The tie beam is poured, forms are stripped, and the walls are ready for roof framing.
What affects the schedule
- Heavy rain stops block laying and grouting, and summer storms often shorten work days
- Inspections of steel and tie beams must pass before concrete is placed
- The truss layout should be final before the tie beam is poured so connectors land in the right place
- Window and door rough opening sizes need to be confirmed before walls go up
Questions & answers
Why are so many Florida homes built with block?
Reinforced concrete block performs well against wind-driven debris, does not rot, and is not a food source for termites. It is a well-understood system for local trades and inspectors, which is part of why it remains common.
What is a tie beam?
It is a continuous reinforced concrete beam poured along the top of block walls. It ties the walls together and holds the connectors that anchor the roof trusses, so it is a key part of the load path in high winds.
Can a new opening be cut in an existing block wall?
Often, yes, but it needs an engineer’s design for the new lintel and any reinforcement, and a permit. We handle that as a structural modification so the opening is properly supported.
Start here
Planning masonry & block construction?
A short form — three steps, a few minutes. Share plans or photos if you have them. We’ll review it and follow up using the contact details you provide.