When a Brick or Masonry Wall Has to Come Out
Brick and CMU walls fail in slow motion. Mortar joints deteriorate, retaining walls bow under hydrostatic pressure, and chimneys lose their cap and start shedding bricks. Most common reasons homeowners decide to tear them out:
- Interior wall removal for an open floor plan. 1960s-80s brick accent walls, fireplace surrounds, masonry partitions between kitchen and dining
- Chimney removal. Defunct fireplace or furnace flue, either above the roofline or all the way down to the firebox
- Failing retaining wall replacement. Segmental block, mortared CMU, or old stone walls that have bowed, cracked, or are leaning
- Exterior wall removal during an addition. Brick veneer or full masonry exterior coming out to tie in a new room
- Detached garage or outbuilding demolition. Full tear-down or partial wall removal for a new door opening
- Brick fence or planter wall. Decorative perimeter walls, columns, or raised brick planters that homeowners want gone
Masonry projects live or die by weight planning. A 30-linear-foot retaining wall with its footing is the weight of a small car. That's what this calculator handles.
Step by Step: Your Brick Wall Estimate
- Pick your project type. Choose a preset or enter custom dimensions. For chimneys, enter total perimeter as length.
- Choose wall material. Single-layer brick for most interior walls; cinder block for most outdoor and garage walls. Preset picks a default; override if needed.
- Pick footing. Interior walls usually have none. Exterior and retaining walls almost always have a poured concrete footing.
- Enter zipcode for regional pricing.
- Click Calculate. Get tonnage, dumpster type, count, and cost range.
How Much Does a Brick or Block Wall Weigh?
Brick masonry runs 40 lbs per square foot for a single-layer wall, doubling to 80 psf for solid double-layer brick. CMU is lighter at 42 psf hollow, but a grouted CMU wall jumps to 90 psf because the cores fill with concrete. Here's what typical projects weigh:
| Project | Material | Total Weight |
|---|---|---|
| Interior Accent (10×8) | Single-Layer Brick | 1.76 tons |
| Interior Partition (15×8) | Single-Layer Brick | 2.64 tons |
| Chimney, Single Story (12 perim × 12) | Single-Layer Brick | 3.17 tons |
| Garage Wall (20×8) | Hollow CMU + Heavy Footing | 5.78 tons |
| Retaining, Medium (30×4) | Hollow CMU + Standard Footing | 4.27 tons |
| Retaining, Tall (40×6) | Grouted CMU + Heavy Footing | 16.04 tons |
A tall grouted CMU retaining wall is roughly the weight of an asphalt double-car driveway, and the same Low-Boy routing applies. We recommend planning by weight, not by visual volume; a half-full Low-Boy of brick or block is closer to capacity than it looks.
Sources: CMHA TEC-002 (2023), the Concrete Masonry & Hardscapes Association's reference for CMU wall weights; and BIA Technical Note 10, the Brick Industry Association's primary estimating reference.
Why Standard Dumpsters Don't Work for Masonry
A 20-yard standard has a 6-ton structural cap, but most haulers won't accept more than 2-3 tons of heavy material because truck axles aren't rated for it. A 30-foot CMU retaining wall hits 4-5 tons before the footing. Result: refused pickup, overage at $50-$100 per ton, or a split bill.
A 10-yd Low-Boy carries 10 tons at flat rate ($400-$600), no overage math. Lower walls, reinforced steel floor. Ask your provider whether their Low-Boy accepts mixed brick and CMU; most do, but some run masonry-only and concrete-only containers separately.
The Footing Question
When does the footing come out? Three scenarios:
- Regrading the area. New slab, new landscaping, or different grade level
- The footing has shifted or cracked and needs to be replaced
- Building something new that requires a different footing pattern
In every other case, the old footing can stay. A 30-linear-foot standard footing (12" wide, 8" deep) weighs about 1.5 tons; a heavy footing for a retaining wall or garage wall runs about 3 tons. That can push a single-Low-Boy project to a two-Low-Boy project if you remove it unnecessarily.
We recommend keeping the footing unless you're regrading or it's visibly cracked. Not sure if there's one? Dig a 6-inch inspection hole at the wall base before ordering; it takes 10 minutes and prevents the most common weight surprise.
How We Calculate Your Estimate
This calculator takes a weight-first approach. We compute wall weight from area and material density, optionally add footing weight by linear foot, then convert to dumpster volume using in-dumpster densities and a bulking factor.
Wall Weight:
Wall Weight = Length (ft) × Height (ft) × Material psf × 1.10 buffer
40 psf for single-layer brick (BIA Technical Note 10, ASCE 7-22 design value). 80 psf for double-layer brick. 42 psf for hollow CMU and 90 psf for grouted CMU (CMHA TEC-002, 2023). The 10% buffer covers lintels, anchors, embedded items, and mortar pockets that surveys typically miss.
Footing Weight (when included):
Footing Weight = Length (ft) × Footing lbs per linear foot
Standard footing (12"×8") is 100 lbs/lf; heavy footing (20"×10") is 208 lbs/lf, at 150 lb/ft³ reinforced concrete density. Standard reflects typical residential practice (IRC R403.1 sets a 12"×6" minimum; most contractors pour 8" deep for frost depth). Heavy reflects retaining and load-bearing wall practice.
Volume Calculation:
Volume = (Weight ÷ In-dumpster Density) × 1.10 Bulking
Broken brick and mortar pack at about 3,000 lbs per cubic yard, broken CMU at 2,400 lbs per cubic yard (lighter because hollow cores create more void space), broken concrete footings at 2,025 lbs per cubic yard. Composite brick veneer over CMU uses a 2,700 weighted average. The 1.10 bulking factor covers packing variability between loads.
Heavy-material routing: Total weight at or above 5,000 lbs routes to 10-yd Low-Boy at flat rate. Below 5,000 lbs, a standard dumpster fits and runs cheaper. The threshold reflects the practical hauler cap on heavy materials in standard dumpsters, not their structural max.
Important Considerations
Load-Bearing Assessment
Any wall perpendicular to ceiling joists, exterior masonry, or wall supporting a second story or roof needs a structural engineer's assessment before demolition. Engineer site visits run $300-$600 and end with a letter specifying any header, beam, or post needed after the wall comes out. Don't swing a sledge until you have the letter.
Lead Paint and Asbestos Risks
Painted brick on a pre-1978 home is presumed lead-based paint until tested. EPA RRP rules apply to disturbing more than 6 sq ft interior or 20 sq ft exterior in pre-1978 target housing or child-occupied facilities; test kits cost $10-$30. Some pre-1980 mortar formulations used asbestos additives, and pre-1980 chimney flues sometimes used transite (asbestos-cement) pipe that shatters into respirable fibers. Bulk-sample asbestos testing runs $200-$400; transite removal requires licensed abatement.
Silica Dust and PPE
Cutting or breaking brick, mortar, and CMU produces respirable crystalline silica that causes silicosis. Wear a P100 respirator (not N95), wet the wall down with a hose while breaking, and keep windows open if working indoors. OSHA Table 1 applies to contractors but homeowners should still respect the hazard.
Brick Salvage and Recycling Routing
Whole bricks have real resale value; vintage brick sells for $0.50-$3.00 per brick on Facebook Marketplace and salvage yards. Broken brick and CMU recycle into crushed aggregate at most concrete recyclers, often at lower tip fees than landfills. Ask whether your hauler's Low-Boy goes to a recycler. Keep the load clean: don't mix masonry with wood, drywall, or other C&D debris.
Frequently Asked Questions
What size dumpster do I need for a brick or masonry wall removal?
For most projects past a small interior accent wall, you need a 10-yd Low-Boy dumpster rated for 10 tons. A 30-linear-foot CMU retaining wall at 4 ft tall with a standard footing weighs about 4.3 tons, already past a 10-yd standard dumpster's 4-ton limit. Single-layer brick interior walls under 100 sq ft (under 5,000 lbs) can fit in a standard 10-yard dumpster.
How much does a single brick wall weigh?
A single-layer brick wall (4 inches thick) weighs about 40 lbs per square foot of wall face, including mortar joints. A 10-by-8-foot interior accent wall comes to about 3,500 lbs (1.8 tons). A double-layer brick wall is roughly double that at 80 lbs per square foot. A grouted CMU wall hits 90 lbs per square foot, even heavier than solid brick because of the cement-filled cores.
Can I put brick in a regular roll-off dumpster?
Sometimes, but rarely. Standard dumpsters are rated for 4-10 tons depending on size, and most haulers cap heavy materials at 2-3 tons regardless of the structural max. For anything past a small interior wall, you'll exceed the hauler's effective weight cap and pay $50-$100 per ton in overage fees. Most haulers route masonry to 10-yd Low-Boys at flat rates of $400-$600.
Do I need to remove the footing under a brick or block wall?
Yes, if you're regrading the area or building anything new on top. A 30-linear-foot standard footing (12 inches wide, 8 inches deep) weighs about 1.5 tons; a heavy footing for a retaining wall or garage runs over 3 tons. Forgetting the footing is the most common weight surprise on masonry projects, so include it in the estimate even if you don't plan to remove it.
Can brick and CMU be recycled?
Yes. Whole bricks have real resale value; vintage brick sells for $0.50-$3.00 per brick on Facebook Marketplace and salvage yards. Broken brick and CMU recycle into crushed aggregate at most concrete recyclers, often at lower tip fees than landfills. Ask your dumpster provider whether their Low-Boy goes to a recycler. Keep the load clean: don't mix masonry with wood, drywall, or other C&D debris.
Reference Sources
Data sources:
- CMHA TEC-002 (2023): CMU wall weights by density and grout pattern. Underpins our 42 psf hollow and 90 psf grouted figures.
- BIA Technical Note 10: Brick estimating reference. Anchors the 40 psf single-wythe figure.
- IRC 2018 R403.1: Residential footing code (12"×6" minimum).
- Roll-Off Dumpster Direct Debris Weight Guide: Broken brick rubble 2,500-3,500 lbs/yd³.
- Hometown Demolition Brick Removal Cost Guide (June 2025): Contractor quotes $500-$2,000 per project; $3.57-$4.17 per sq ft.
Related Calculators
- Concrete Removal Calculator: Same Low-Boy and density-driven sizing for concrete slabs, patios, and foundations
- Asphalt Driveway Removal Calculator: Closest heavy-material peer with the same Low-Boy routing logic
- Fence Removal Calculator: Property-prep cluster; fence and masonry projects often happen together during yard work
- Shed Removal Calculator: Outbuilding-removal peer for users tearing down full detached structures
- General Dumpster Size Calculator: Quick estimates for any project type or mixed-material loads
Disclaimer: Estimates use BIA and CMHA assembly weights plus a 10% buffer for lintels, anchors, and painted brick. Field measurements can run 5-15% higher. Confirm with your dumpster provider before booking; local hauler quotes are the source of truth.