Brick Masonry: Types, Bonds and Construction Process

What Is Brick Masonry and How Does It Work?

Brick masonry is an assembly of masonry units laid in mortar in a defined bond pattern. Its structural behavior is governed by TMS 402 and the building code — IBC or IRC depending on occupancy and height. The brick carries compressive load; the mortar bonds the units and distributes stress; the bond pattern ties the assembly together.

A solid brick wall, a cavity wall, and a brick veneer behave differently. A solid wall is structural and can carry roof or floor load. A cavity wall separates the outer and inner wythes with an air space, and a brick veneer carries no roof or floor load at all — it sheds water and transfers lateral load through wall ties to the backing. A wythe is a continuous vertical section of masonry one unit thick, and the collar joint is the space between two wythes, typically filled with grout where composite action is required. A two-wythe solid wall behaves differently than a single-wythe veneer with an air cavity, and the takeoff must reflect which system the drawings show.

Brick masonry falls under CSI MasterFormat Division 04 (04 20 00 unit masonry), where you will find the specification sections for brick, mortar, grout, reinforcement, and accessories. The material is durable, fire-resistant, and low-maintenance but labor-intensive and moisture-sensitive, which is why flashing and weep holes matter as much as the brick itself. If you need help quantifying these assemblies, masonry estimating services cover brick, block, stone, and the accessories that go with them.

Brick Types, Actual vs Nominal Dimensions

Brick types are specified by use. Building brick (ASTM C62) is for general structural and non-facing work. Facing brick (ASTM C216) is made for exposed surfaces. Hollow brick (ASTM C652) has cores that reduce weight and improve firing. Glazed brick and thin brick are used for veneer and interior applications where a specific finish or thickness is required.

The dimension that trips up takeoffs is actual versus nominal. A modular brick measures 3-5/8 in. wide x 2-1/4 in. high x 7-5/8 in. long actual. Add a 3/8 in. mortar joint and the nominal dimension becomes 4 x 2-2/3 x 8 in. Nominal dimensions drive coursing and unit counts; actual dimensions drive the material order.

The coursing math follows from the nominal height. One course equals 2.667 in., so 12 in. ÷ 2.667 in. = 4.5 courses per foot of height. A 10 ft wall is 45 courses. That is the number you use to check a wall height against the elevation before counting units.

The table below lists the standard brick sizes you will see in takeoffs. Units per square foot assume a 3/8 in. mortar joint and a running bond wall.

ASTM C216 covers facing brick in grades SW (severe weathering), MW (moderate weathering), and NW (negligible weathering). Grade selection is a specification decision, not a cost shortcut — substituting a lower grade to save money can fail the durability requirement in the spec. For a clean count of units, mortar, and accessories, material takeoff services break the wall down by assembly rather than by a single square-foot allowance.

Types of Brick Bonds and Where to Use Them

A brick bond is the pattern in which units are laid to distribute load and tie the wall together. Bond also refers to the overlap between units — the amount one unit laps the unit below it. The pattern controls how the wall behaves under load and how water moves through the joints.

Running bond is all stretchers with a half-unit offset, and it is the default for veneer and most walls. Common bond, also called American bond, repeats a header course every sixth course to tie the wythes together. Stack bond has continuous vertical joints with no unit interlock, so it relies on horizontal joint reinforcement or a structural backing; it is common in interior feature walls and veneer. English bond alternates header and stretcher courses. Flemish bond alternates header and stretcher within each course. Garden wall bond is a decorative pattern used on freestanding walls.

Bond pattern affects unit count only slightly because the same number of units covers the same area. It affects labor, cutting, and reinforcement significantly. A running bond wall is the fastest and cheapest to lay. Stack bond takes longer, needs more reinforcement, and produces more waste from cutting. Common bond adds header units and slows the crew.

Bond patterns are shown on the elevation drawings, and a takeoff must read the pattern before counting units. If the elevations show stack bond, do not price it as running bond. Quantity takeoff services read the elevations and the wall sections together so the bond pattern and the reinforcement schedule match the drawing set.

Brick Masonry Wall Thickness: Solid, Cavity, Veneer

Brick masonry wall thickness is described in wythes. A single wythe is one brick wide, a two-wythe solid wall is two bricks wide with a collar joint between them, and a cavity wall is two wythes separated by a 2 in. air space. The air space keeps water that penetrates the outer wythe from reaching the inner wythe or backing.

Nominal thicknesses follow from that geometry. A veneer is a nominal 4 in. thick. A solid two-wythe wall is a nominal 8 in. A cavity wall is a nominal 10 in. or 12 in. depending on the air space and the backing type. The structural engineer of record sets the required thickness based on loads, height, and support conditions.

A brick veneer is anchored to wood frame, steel stud, or concrete masonry backing with wall ties. Ties are typically spaced at 16 in. or 24 in. on center each way, per TMS 402 and the veneer manufacturer's instructions. The ties transfer out-of-plane loads from the veneer to the backing and must be corrosion-resistant.

The IRC limits veneer height above a noncombustible foundation and requires a 1 in. air space plus flashing at the base and over openings. Review those limits before you price a tall veneer wall. Specifying a thicker wall for appearance alone adds cost without structural benefit, so confirm the required thickness with the engineer, not the elevation drawing. If your scope includes the steel backing, structural steel estimating services can help you price it accurately.

Brick Masonry Mortar Mix, Grout and Reinforcement

Mortar is specified by ASTM C270 and comes in Types M, S, N, O, and K. Type S and Type N are the most common for brick veneer, while Type M is used for high-compressive or below-grade work. The mortar type affects bond strength, flexibility, and water resistance, so match it to the application rather than defaulting to the strongest mix.

Typical mortar mix proportions by volume are straightforward. Type N is 1 part portland cement, 1 part lime, and 6 parts sand. Type S is 1 part portland cement, 1/2 part lime, and 4-1/2 parts sand. Field mixing must follow the project specification, and prepackaged mortar should be measured by weight per the manufacturer.

Grout is a high-slump mixture used to fill reinforced cores and collar joints. It is placed in lifts and consolidated to avoid voids. Voids in grout around reinforcement reduce capacity and are a common inspection finding, so count the grout volume and the consolidation labor separately in your takeoff.

Brick masonry reinforcement includes horizontal joint reinforcement (ladder or truss type) in veneer and vertical deformed bars in grouted cores for reinforced walls. Horizontal reinforcement controls shrinkage cracking; vertical bars carry bending and axial loads. Count each separately by linear feet and by bar size.

Mortar color, tooling, and joint profile affect both appearance and water penetration. Concave, vee, grapevine, and flush joints behave differently, and tooling compresses the mortar into the unit to tighten the joint. Specify the profile and the tooling timing in the project manual. If your scope includes concrete backing or foundations, concrete estimating services can help you price that work.

Brick Masonry Flashing Details, Weep Holes and Expansion Joints

Brick masonry flashing details direct water out of the wall. The most common failure is missing or discontinuous flashing at the base, over openings, at shelf angles, and at roof intersections. Water that cannot exit the cavity migrates inward and shows up as efflorescence, spalling, or interior damage.

The components work as a system. Through-wall flashing can be copper, stainless steel, or a composite membrane. It needs a drip edge, weep holes at 24 in. on center in the head joint above the flashing, and a mortar net or gravel to keep the weep open. Each of those items is a separate line in the takeoff.

Weep holes must be kept clear during construction. Mortar droppings in the cavity are a leading cause of leaks and efflorescence, and they are expensive to correct after the wall is up. Require cavity cleaning and protection in the masonry scope, and inspect before the wall rises too high.

Expansion joints are vertical separations that accommodate movement. For brick veneer they are typically placed at 20 ft to 25 ft on center, at corners, and at changes in backing or height. Skipping them leads to cracking at the weakest plane, often through the brick itself.

Sealant joints and backer rod are part of the flashing and joint system. The takeoff must count linear feet of flashing, weep holes, and joint sealant separately, because each has a different unit cost and labor rate. Coordinate the sealant scope with the waterproofing trade to avoid gaps. If your project includes below-grade or deck waterproofing, waterproofing estimating services can price it alongside the masonry.

Brick Masonry Construction Process Step by Step

1. Layout and coursing. Establish the coursing before laying any brick. Calculate the number of courses from the base to the top of the wall, accounting for mortar joint thickness, so you do not end up with a cut course at the top. Snap lines on the foundation to locate the wall faces and corners.

2. Foundation and shelf angle installation. For veneer, verify the foundation or shelf angle is level and at the correct elevation. A shelf angle supports brick veneer above openings or when the foundation cannot carry the load. Check that the angle is shimmed, bolted, and primed where required.

3. Flashing and weep hole placement. Install flashing at the base of the wall, over openings, and at shelf angles. Weep holes go immediately above the flashing at a spacing of about 16 in. to 24 in. on center, or as specified. Keep the weep holes clear of mortar.

4. First course and corner leads. Build the corners or leads first, then line between them. The first course sets the bond pattern and the coursing for the entire wall. Use a level and story pole to keep each lead plumb and true.

5. Wall construction. Lay brick to the line, keeping the air space between the veneer and the backup clear. Install wall ties as the wall rises, typically one tie per 2.67 sq ft of wall area, embedded in the backup and secured in the mortar joint. Do not allow mortar droppings to accumulate in the cavity.

6. Reinforcement and grout placement. For reinforced brick masonry, place grout in lifts, typically not more than 5 ft to 8 ft high at a time. Consolidate each lift with a mechanical vibrator or by puddling with a rod. Do not let grout fall freely more than a few feet, as it can segregate.

7. Tooling. Tool the joints when the mortar is thumbprint-hard. Tooling compacts the mortar at the joint surface and improves weather resistance. Use a jointer that matches the specified profile, such as concave or V-shaped.

8. Cleaning. Clean the wall with a masonry cleaner after the mortar has cured, not before. Cleaning too early can smear mortar and damage the brick surface. Follow the cleaner manufacturer’s directions and test on a small area first.

A brick masonry construction process that follows this sequence reduces rework and keeps the wall weathertight. Coordinate the brick masonry construction schedule with other trades so the wall is not loaded or disturbed before the mortar reaches initial set. For scheduling support, see construction scheduling services.

How to Estimate Brick Masonry: Takeoff Method

1. Measure wall area by elevation. Take off each wall elevation separately, using the actual dimensions from the drawings. Record height and length, then multiply to get gross area in square feet. Deduct openings larger than 10 sq ft, such as windows and doors, but do not deduct small vents or sleeves unless the specification says otherwise.

2. Convert area to units. Use the formula: units = wall area (sq ft) × units per sq ft × waste factor. For a modular brick running bond wall, units per sq ft is about 6.86. Example: a 1,000 sq ft wall needs 1,000 × 6.86 = 6,860 units before waste. Add the waste factor from the next section to get the order quantity.

3. Estimate mortar. Mortar is estimated by volume of wall or by units. A common planning figure is 1 cu ft of mortar per 50 to 60 modular bricks, but the specification and joint width govern. For a 1,000 sq ft modular wall, 6,860 units ÷ 55 ≈ 125 cu ft of mortar. Check the mix design for cement and sand proportions.

4. Count linear items separately. Flashing, weep holes, joint reinforcement, wall ties, control joints, and shelf angles are measured in linear feet, each, or by count. Do not bury these in the wall area. For example, joint reinforcement might be 12 in. vertical spacing, so a 10 ft high wall has about 10 lines of reinforcement per wall length.

5. Organize by wall type. A brick masonry takeoff must be organized by wall type, thickness, and bond pattern, because labor and material rates differ for each. A running bond veneer is not priced like a stack bond or a reinforced cavity wall. Use a quantity takeoff service to keep the breakdown consistent. If you are working from PDFs, a blueprint takeoff can extract dimensions and reduce manual scaling.

Once the takeoff is complete, extend the quantities by unit costs and apply labor factors. The takeoff is the basis for the brick masonry calculator or spreadsheet that produces the final estimate. Review the takeoff against the drawings before pricing to catch missing wall segments.

Brick Masonry Unit Conversion and Waste Factor

After the wall area is converted to units, you often need to convert units to cubes or pallets for ordering and to weight for structural loading. A cube of modular brick is 500 units, and a cube weighs about 3,000 lb to 3,500 lb depending on unit type and moisture content. If your takeoff shows 6,860 modular units, that is 6,860 ÷ 500 = 13.72 cubes, or about 14 cubes. For weight, 14 cubes × 3,250 lb per cube = 45,500 lb. That load matters when you are checking a shelf angle or a lintel.

The brick masonry waste factor is not one number. Use 3% to 5% for a simple running bond wall with few cuts, 5% to 8% for stack bond or heavy cutting, and 10% or more for complex bond patterns, arches, or radius work. Waste is applied to units, not to mortar or accessories, because the cut units at corners and openings are the main driver. If you are using a brick masonry calculator, make sure it lets you set the waste factor by wall type rather than applying a single global percentage.

Ordering exact quantities without waste leads to color and texture mismatch when a second lot is delivered. Brick is a fired product, and dye lots and firing temperatures vary. Always order the full quantity plus waste in one lot when possible. If you must split the order, blend units from both lots on the wall to hide the difference. A material takeoff service can help you convert the brick masonry unit conversion from area to cubes and weight, and flag where the waste factor should be higher.

Worked Example: Estimating a Brick Veneer Wall

Example only. This calculation is for a single-story commercial building with 2,400 sq ft of brick veneer. The wall uses modular brick in running bond, an 8 in. concrete masonry backing, a 2 in. air space, and a 4 in. nominal brick veneer. Actual quantities depend on the drawings, specification, and bond pattern.

Units. Modular brick covers about 6.86 units per sq ft of wall. Multiply the wall area by that coverage:

2,400 sq ft × 6.86 units per sq ft = 16,464 units

Apply a 5% brick masonry waste factor for breakage and cutting:

16,464 × 1.05 = 17,287 units, rounded to 17,300 units

At 500 units per cube, order:

17,300 ÷ 500 = 34.6 cubes, so order 35 cubes

Mortar. Using 1 cu ft of mortar per 55 bricks:

17,300 ÷ 55 = 314.5 cu ft

Convert to cubic yards:

314.5 ÷ 27 = 11.65 cu yd, so about 11.6 cu yd

Flashing and weep holes. The wall perimeter is 200 linear ft. That gives 200 linear ft of through-wall flashing at the base. Weep holes at 24 in. on center:

200 ÷ 2 = 100 weep holes

Wall ties. Ties at 16 in. on center each way give:

(12 ÷ 16) × (12 ÷ 16) = 0.5625 ties per sq ft

2,400 × 0.5625 = 1,350 ties

Add 5% waste:

1,350 × 1.05 = 1,418 ties

A brick masonry calculator or a full brick masonry takeoff should follow the same sequence: area, unit conversion, waste factor, then linear items counted separately. If you need help checking a takeoff like this, estimating software we work in can speed up the quantity side, but the assumptions still need to match the drawings.

Brick Masonry Cost Per Square Foot

A brick veneer wall typically runs $15 to $30 per square foot installed. That range moves with region, unit type, backing, and access. It is a planning number, not a bid number, and it should be confirmed with local suppliers and subcontractors before you rely on it.

The range splits into material and labor. Brick units are often $0.50 to $1.50 each. Mortar, reinforcement, flashing, ties, and accessories add a few dollars per square foot. Labor is the largest share of the installed cost, and it is the part that swings most between markets and crews.

Cost per square foot rises with wall height, scaffolding, bond pattern complexity, radius work, and the amount of cutting. A running bond wall at 10 ft is not the same price as a basketweave or herringbone feature wall at 30 ft. Any brick masonry cost per square foot figure is only useful if it states what is included: brick, mortar, reinforcement, flashing, ties, labor, scaffolding, and cleaning.

For a defensible number, build the estimate from quantities rather than applying a single rate. Start with construction cost estimating build-up, or compare your unit rates against published data through RSMeans cost estimating. Costs vary by region and date, so always confirm current pricing with local suppliers and subcontractors.

Brick Masonry Checklist for Contractors

• Confirm the design basis. Check the bond pattern, wall thickness, unit type and grade, mortar type, reinforcement, flashing, weep holes, and expansion joint locations on both the drawings and the specification. If any of these are missing, send an RFI before pricing.
• Verify wall areas by elevation. Take off each elevation separately, deduct openings, and apply the correct waste factor for the bond and unit. Count linear items such as flashing, weep holes, and shelf angles separately from wall area.
• Confirm scope boundaries. Decide who provides scaffolding, cleaning, sealant, shelf angles, and lintels. Confirm whether the backing and insulation are in your scope or another trade's. Scope gaps here are the most common source of lost margin in brick masonry for contractors.
• Check submittals early. Brick samples, mortar color, grout mix, and flashing product data all need approval before the wall goes up. Late approvals delay the first lift and compress the schedule.
• Walk the field checks. Weep holes must stay clear, flashing must be continuous, wall ties must be installed at the correct spacing, and joints must be tooled at the right time. These are the items that drive callbacks on brick masonry construction.

If you want a second set of eyes before you submit, use bid estimating services to check quantities, or subcontractor estimating services to price the scope you actually carry.

Common Brick Masonry Estimating Mistakes

• Using actual dimensions instead of nominal dimensions. A modular brick measures 3-5/8 in x 2-1/4 in x 7-5/8 in, but it lays up as 4 in x 2-2/3 in x 8 in with a 3/8 in mortar joint. Course counts, units per square foot, and wall heights all follow nominal dimensions. If you take off with actual sizes, your brick masonry takeoff runs short on units and your coursing never closes at the plate line.

• Applying one waste factor to every wall. A running bond veneer on a flat elevation might waste 3% to 5%, but a stack bond with tight tolerances, a basketweave panel, or radius work can push waste to 10% or more because of cut units. Set the waste factor by bond pattern, cutting, and radius, not by habit.

• Forgetting linear items. Flashing, weep holes, joint reinforcement, wall ties, and control joints are priced by the linear foot or by the piece, and together they often run 10% to 20% of the masonry cost. Estimators who count only brick and mortar miss the accessories that carry real labor.

• Missing the backing, insulation, shelf angles, and lintels. These items are frequently supplied by another trade but installed by the mason. If the mason sets the shelf angle or the rigid insulation, the labor belongs in your brick masonry for contractors number even when the material sits in someone else's quote.

• Not reading the specification. Mortar type, grout mix, and reinforcement requirements change both material cost and labor. Type S mortar, a 2,500 psi grout, and #4 bars at 16 in on center are not interchangeable with a generic wall.

• Ignoring access and scaffolding. A two-story veneer wall on a tight urban lot needs scaffolding, mast climbers, or a swing stage. Access can add a significant cost line on tall or constrained sites, and it is easy to leave out when you price from the plan alone.

If your bid is already out the door, an estimate review service can catch these gaps before the numbers become a change order.

When to Get a Professional Brick Masonry Estimate

A professional takeoff earns its fee when the project has multiple wall types, complex bond patterns, radius work, or a bid deadline you cannot miss. Those are the jobs where a missed accessory or a wrong coursing assumption turns a winning number into a losing one. If the scope is a single running bond veneer on a rectangular building, you can handle it in house with a careful brick masonry takeoff.

Masonry never stands alone. The takeoff has to coordinate with the structural scope for shelf angles and lintels, the architectural scope for bond pattern and coursing, and the waterproofing scope for flashing and weep holes. When one of those items falls between trades, it becomes a change order, and the mason usually eats the argument. A second set of eyes on the quantity takeoff keeps the boundaries clean.

A professional estimate gives you quantities by wall type, material and labor pricing, waste factors set by bond and cutting, and a bid-ready summary you can drop into your proposal. Whether you use estimating software or a spreadsheet, the output should show the same line items your superintendent will build from.

Scope Precision Estimate can turn around most brick masonry takeoffs in 24 to 48 hours, with rush service available. Start with our masonry estimating services page, see how a quantity takeoff is structured, or get an estimate by uploading your plans.