Brick Calculator

Standard brick: 6.75/sq ft · Mortar: ~1 bag per 30 bricks · Always add 10% waste minimum · Bricks sold by the thousand · Use Grade SW brick for freeze-thaw climates

Estimates based on 2026 US average pricing from HomeAdvisor and BIA. Always confirm current pricing with your local brick supplier and mason.

How Does the Brick Calculator Work?

This brick calculator estimates the number of bricks and mortar bags needed for walls, fences, patios, fireplaces, and any other brick structure. It accounts for brick size, mortar joint width, wall thickness (single or double wythe), openings (doors and windows), and waste factor.

The calculation uses industry-standard bricks-per-square-foot figures from the Brick Industry Association (BIA) for each brick size, then applies your selected wall type multiplier and waste factor to give you the actual order quantity. The mortar estimate uses the standard rule of 1 bag per 30 bricks (60 lb bags of pre-mixed mortar).

How to Use It

1. Enter your wall length and height in feet. For multiple walls, calculate each separately and add the results.
2. Select your brick size — Standard is the most common US residential brick at 6.75 bricks per sq ft.
3. Select your mortar joint size — ⅜ inch is standard for most brick work per ASTM and BIA guidelines.
4. Select your wall type — single wythe (4 inches thick) for garden walls and veneer; double wythe (8 inches) for structural walls.
5. Enter doors and windows to deduct from the total area (doors assumed 21 sq ft, windows 15 sq ft average).
6. Select a waste factor — 10% standard; 15% for corners and curves; 20% for herringbone or diagonal patterns.

3 Worked Examples

Example 1 — Garden Wall (20 × 4 ft, Single Wythe, Standard Brick)

A freestanding garden wall — the most common DIY brick project. Single wythe (4 inches thick), standard bricks, ⅜ inch joints, 10% waste, no openings.

Real-world note: A 20×4 ft single wythe garden wall is achievable as a weekend DIY project for an experienced homeowner. Plan on laying 100–150 bricks per day if you haven’t laid brick before. Check local building codes — garden walls over 3 ft may require a footing inspection in some jurisdictions. Always build on a concrete footing, not directly on soil.

Example 2 — House Facade with Windows (40 × 10 ft, Veneer, 4 Windows)

Brick veneer on a single-story house facade. 4 standard windows deducted, standard brick, 10% waste.

Real-world note: Installed cost for brick veneer on a house facade runs $18–$35/sq ft in 2026 — so 340 sq ft of facade is a $6,120–$11,900 installed project. The material cost is only a fraction of total project cost; skilled mason labor is the dominant expense. Always get 3 mason quotes for work of this scale. Brick veneer also requires stainless steel wall ties fastened to the structural wall behind — typically 1 tie per 4.5 sq ft — which the calculator doesn’t include in material cost.

Example 3 — Brick Patio (15 × 20 ft, Herringbone Pattern)

A brick patio installed flat (like paving, not a wall). Herringbone pattern requires 20% waste for diagonal cuts on all edges.

Real-world note: Paving bricks (also called pavers) are laid on a compacted sand bed, not mortar, for most residential patios. They need to be rated for foot traffic and freeze-thaw if in a cold climate. The 20% waste factor for herringbone is not optional — every edge brick must be cut diagonally and approximately 15–20% of all bricks end up as cut pieces that can’t be used elsewhere. Rent a wet tile saw or angle grinder with masonry blade for the cuts.

Brick Types Guide

Choosing the right brick for your application affects durability, appearance, cost, and whether the wall will survive the climate. The most important rating to check is the weathering grade.

Weathering Grade — The Most Important Selection Criteria

ASTM C216 defines three weathering grades for face brick. Using the wrong grade in a freeze-thaw climate causes spalling (surface flaking) within 2–5 winters, turning a beautiful wall into a maintenance problem.

Brick Bond Patterns Guide

The pattern in which bricks are laid affects structural strength, appearance, and the amount of cutting required. Some patterns also directly affect how many bricks you need to order.

Mortar Calculator & Guide

Mortar binds bricks together and transfers loads between them. Using the correct mortar type is as important as using the correct brick — the wrong mortar can fail structurally or cause staining and joint cracking.

Mortar Quantity Reference

• 1 bag of pre-mixed mortar (60 lb) lays approximately 25–35 standard bricks
• For every 1,000 bricks you need approximately 30–40 bags of mortar (60 lb bags)
• Mortar costs $8–$15 per 60 lb bag in 2026 (pre-mixed; custom mix is cheaper per volume)
• For large projects (500+ bricks), mixing your own from cement, lime, and sand is significantly cheaper — use our concrete calculator to estimate raw materials

Brick Coverage Chart

Quick reference for estimating bricks needed for common project sizes using standard bricks (6.75 per sq ft) with ⅜ inch mortar joints and 10% waste, single wythe.

Single wythe walls only. Double wythe requires approximately 2× the bricks. Pallet count assumes 550 bricks per pallet — confirm with your supplier.

Brick Cost (2026)

Hidden Costs Most Estimates Miss

1. Concrete Footing

Any freestanding brick wall must be built on a concrete footing — not directly on soil. A standard footing for a 4-foot-tall garden wall is typically 8 inches deep × 16 inches wide, extending 6 inches below frost line. For a 20-foot wall, this is approximately 1.5–2 cubic yards of concrete — adding $300–$600 in materials or $800–$1,500 installed, not included in brick estimates.

2. Wall Ties for Brick Veneer

Brick veneer on a house must be mechanically fastened to the structural wall behind using stainless steel or galvanized wall ties. The BIA recommends 1 tie per 2.67 sq ft of wall area. A 400 sq ft veneer project needs approximately 150 wall ties at $0.50–$2.00 each — plus time to install. Ties are almost never mentioned in initial brick quotes.

3. Flashing and Weep Holes

Brick veneer walls require flashing (waterproofing membrane) at the base and weep holes every 24 inches along the bottom course to drain moisture from behind the veneer. Omitting these causes moisture accumulation behind the brick that can rot the structural wall behind. Flashing adds $1–$3 per linear foot of wall base.

4. Delivery and Unloading

Brick delivery is typically charged separately — $75–$250 per pallet depending on distance and supplier. Brick is extremely heavy (standard brick: ~4.5 lbs each, 2,200 lbs per 500-brick pallet). Many deliveries require a forklift for unloading, which adds $50–$150 if the supplier charges for equipment time. Always confirm delivery fee and unloading requirements before ordering.

5. Sealing and Pointing

Newly completed brick walls often benefit from sealer application ($0.15–$0.50 per sq ft in product cost) to reduce water absorption, especially in wet climates. Over time, mortar joints erode and need tuckpointing — filling with fresh mortar — which costs $5–$25 per sq ft professionally. Budget for this maintenance every 20–30 years on exterior walls.

Common Calculation Mistakes

Not Adding a Waste Factor

Ordering exactly the calculated count is the most common brick ordering mistake. Bricks break during transport and cutting, odd-sized cuts produce unusable offcuts, and matching a dye lot on a reorder is difficult — bricks from the same manufacturer but different production runs can visibly differ in color. Always order 10% minimum; 15% for any project with corners or cuts.

Using the Wrong Bricks-per-Sq-Ft Figure

Different brick sizes have very different coverage rates. Standard brick at 6.75 per sq ft vs King size at 4.80 per sq ft — a 40% difference. Using the wrong figure means ordering the wrong quantity entirely. Always confirm your brick size with the supplier and verify the bricks-per-sq-ft figure before calculating.

Forgetting to Deduct Openings

A 40×10 ft wall with 4 standard windows has 60 sq ft of openings — saving approximately 446 bricks. Many homeowners calculate the full gross wall area and order too many bricks. The calculator deducts doors (21 sq ft) and windows (15 sq ft) automatically — but if your openings are non-standard sizes, measure and deduct manually.

Single vs Double Wythe Confusion

A single wythe wall (one brick thick, 4 inches) uses half the bricks of a double wythe wall (two bricks thick, 8 inches). This is a 2× difference in material cost and weight. Garden walls, veneer, and landscape features are almost always single wythe. Structural load-bearing walls may require double wythe or cavity wall construction — confirm with your engineer or local building code.

Using Common Brick for Exterior Projects

Common brick is not rated for weather exposure and is significantly more porous than face brick. Using it on exterior walls, garden features, or paths in freeze-thaw climates causes spalling and surface deterioration within a few years. It costs slightly less than face brick, but the failure cost far exceeds the savings. Always use Grade SW face brick for anything exposed to weather in northern climates.

How We Calculate

Core formula: Bricks = (Wall Area − Openings) × Bricks/sq ft × Wall Type Multiplier × Waste Factor

Bricks-per-square-foot figures are derived from the Brick Industry Association (BIA) Technical Note 10 — the industry standard reference for brick quantities. These figures account for the nominal brick face dimensions plus the selected mortar joint width (¼", ⅜", or ½"). Door deduction uses a standard 3×7 ft opening (21 sq ft); window deduction uses 3×5 ft (15 sq ft). For non-standard openings, calculate each manually and note the area difference.

Wall type multiplier: veneer and single wythe = 1.0; double wythe = 2.0. Mortar estimate: 1 bag (60 lb) per 30 bricks, consistent with BIA and pre-mixed mortar manufacturer guidance for standard joint thickness. Material cost range: $0.40–$0.90 per brick, reflecting the 2026 national range for standard Grade SW face brick from HomeAdvisor and supplier catalog data.

Frequently Asked Questions