A bundle of CertainTeed Landmark shingles typically contains about 21 individual shingles. The more useful ordering figure is coverage: Landmark shingles are generally packaged at three bundles per roofing square, or about 100 square feet of roof coverage before waste. Bundle contents and packaging can vary by product and market, so the wrapper and current product documentation should be checked before ordering. Knowing both the shingle count and coverage helps homeowners estimate materials without confusing a bundle with a square.
Quick Answer: Landmark Shingle Count and Coverage
For standard CertainTeed Landmark architectural shingles, a practical estimate is about 21 shingles per bundle and three bundles per square. A roofing square is 100 square feet of roof area. At roughly 21 pieces per bundle, three bundles contain about 63 shingles; manufacturers and sellers may describe the package count as approximate or list a slightly different piece count depending on the specific product or packaging.
| Measure | Typical Landmark estimate |
|---|---|
| Shingles per bundle | About 21 |
| Bundles per square | 3 |
| Coverage per bundle | About 33⅓ square feet |
| Coverage per square | 100 square feet |
For purchasing, coverage is more dependable than counting pieces. A shingle count is useful for understanding what comes in a package, but roof area and required bundles determine the order. Check the label for the exact Landmark product name and coverage statement, especially when buying from a retailer or comparing different Landmark lines.
Why Bundle Counts Can Differ
“CertainTeed Landmark” refers to a product family, and packaging details can change by product, manufacturing location, or packaging revision. Standard Landmark, Landmark PRO, and other Landmark variations may have different weights, features, or package information. Retail listings may also round piece counts or reuse descriptions that do not match the current wrapper.
That is why 21 should be treated as a typical piece-count estimate, not a guaranteed count for every package. The bundle label is the best source for the specific product on hand. If the label gives coverage but not a shingle count, use its coverage figure for estimating the roof order.
Retailers may also use “bundle,” “package,” and “square” in ways that confuse shoppers. A bundle is one package. A square is a roofing-area measurement, not a physical stack of shingles. For Landmark shingles, three bundles commonly make up one square, but the product documentation should settle the exact coverage for the selected item.
How Much Roof Area Does One Bundle Cover?
A standard estimate is about 33⅓ square feet per bundle, because three bundles typically cover one 100-square-foot square. This is a planning figure for the shingle field, not a promise that a bundle will cover exactly that much finished roof under every installation condition. Roof shape, cuts, hips, valleys, starter courses, and installation details affect how much usable coverage remains.
Landmark shingles are laminated architectural shingles. They are installed with an exposure—the visible portion of each shingle—specified by the manufacturer’s instructions. The portion hidden beneath the next course does not add roof coverage. Consequently, multiplying the shingle’s full dimensions by the number of pieces will overstate the area covered.
For a dependable estimate, use the product’s stated coverage and the measured roof area. Do not calculate roof coverage from the full face dimensions or assume every shingle can be used without trimming. A roofing square is always 100 square feet of actual roof surface, not 100 square feet of the home’s interior floor area.
How to Calculate the Number of Bundles Needed
- Measure the roof surface. Add the area of each roof plane, or use a contractor’s roof measurement. A simple house footprint is not enough when the roof has a slope, dormers, multiple wings, or other projections.
- Convert the area to squares. Divide the measured roof area in square feet by 100. For example, a 2,000-square-foot roof has 20 squares before waste is added.
- Allow for waste. Add a suitable allowance for cuts, breakage, pattern layout, and roof complexity. The required allowance depends on the roof; a straightforward roof generally needs less than one with many hips, valleys, dormers, or steep sections.
- Convert squares to bundles. Multiply the adjusted number of squares by three for a typical Landmark estimate. Round up to whole bundles.
Example: A roof measured at 2,000 square feet equals 20 squares. With a 10% waste allowance, the estimate becomes 22 squares. At three bundles per square, the order would be approximately 66 bundles, subject to the exact coverage and ordering guidance for the selected product.
The example is an illustration, not a universal waste recommendation. A roofer may calculate a different allowance after reviewing the roof’s dimensions, shingle layout, and accessories. When ordering, it is also sensible to confirm how unopened bundles can be returned and whether the replacement product will match the same color and manufacturing lot.
Estimating Bundles for Common Roof Sizes
| Roof area | Squares before waste | Bundles before waste | Bundles with 10% added |
|---|---|---|---|
| 1,000 sq. ft. | 10 | 30 | 33 |
| 1,500 sq. ft. | 15 | 45 | 50 |
| 2,000 sq. ft. | 20 | 60 | 66 |
| 2,500 sq. ft. | 25 | 75 | 83 |
These figures use the common three-bundle-per-square estimate and round purchases up to whole bundles. The 10% column is only an example. It should not replace a roof-specific material takeoff, and it does not include underlayment, starter shingles, ridge caps, nails, or other roofing components.
Waste, Roof Shape, and Accessories
Waste is the material lost to cuts and layout, not simply extra shingles left over by mistake. A basic gable roof may have relatively few cuts. A roof with hips, valleys, intersecting planes, or numerous penetrations can require more trimming and create more unusable offcuts. Steeper or more detailed roofs may also take additional care during installation.
Some components that appear to be shingles are purchased separately. Starter strips and ridge-cap products, for example, may have their own coverage rates and package counts. A standard field-shingle bundle estimate does not automatically include these items. The contractor’s material list or the manufacturer’s installation instructions should identify which products are needed and how much coverage each package provides.
Waste allowances should be based on the roof rather than chosen automatically. A professional roofer can measure the roof planes and estimate cuts and accessories. For a do-it-yourself estimate, a roof plan, accurate dimensions, and the product instructions are more useful than relying only on the home’s listed square footage.
How to Confirm the Count on a Bundle
Before purchase, look for the exact product name on the package and check its stated coverage. The wrapper may identify the product as Landmark or as another member of the Landmark family, and it may provide coverage per bundle, bundles per square, and product specifications. If information is unclear, ask the supplier to verify the package details against the manufacturer’s current documentation.
- Match the product name and color to the project specification.
- Use the printed coverage figure to calculate bundles.
- Ask the supplier whether the stated count is per bundle or per square.
- Check that all bundles are the same product and color blend.
- Confirm return policies and availability before ordering extra material.
Color can appear different under changing light, and batches may vary slightly. For a roof repair or an addition to an existing roof, the age of the shingles and the availability of the original color matter as much as the bundle count. A product that shares a color name may not blend perfectly with weathered shingles.
Common Mistakes When Counting Landmark Shingles
Confusing a bundle with a square
One bundle is generally about one-third of a square, not a complete square. A project requiring 10 squares therefore needs approximately 30 bundles before waste and separate accessories are considered.
Using floor area as roof area
A home’s listed living area does not account for roof pitch, eaves, garages, porches, or roof extensions. Roof surface area must be measured or calculated from roof dimensions and slope.
Ordering only by piece count
Approximately 21 shingles per bundle is a helpful answer to the package-count question, but coverage is the better ordering measure. Piece counts can vary or be rounded in listings, while the package’s coverage statement is intended for material planning.
Leaving out accessories and waste
Field shingles are only one part of a roofing system. Starter material, ridge caps, underlayment, flashing, and ventilation components may be required. A complete estimate should account for these separately, along with an appropriate cutting allowance.
Reliable Sources for Product Specifications
CertainTeed’s official Landmark product information and product literature are the preferred sources for current product specifications. Installation instructions provide details about application, exposure, and system components. Because product packaging and specifications can be revised, buyers should rely on the documentation for the exact shingle being purchased rather than an older online listing.
In short, a CertainTeed Landmark bundle typically contains about 21 shingles and covers roughly 33⅓ square feet, with three bundles commonly making one roofing square. The exact piece count can vary, so the package label and current CertainTeed documentation should guide the final calculation.