A single flooring product backed by three or four common documents can reach the maximum LEED v5 multi-attribute score (MAS) of 5. At that score, it only needs to make up just over 20% of the project’s flooring spend to earn the flooring point by itself. This article works through that math step by step for one hypothetical resilient sheet flooring product, under LEED v5 BD+C credit MRc4: Building Product Selection and Procurement.
It is written by Elixir Environmental, which helps building product manufacturers prepare Health Product Declarations (HPDs), Environmental Product Declarations (EPDs), and other transparency documents. Those documents are what set a product’s score in this credit. If you are a manufacturer deciding which documents to invest in, this example shows how much each one is worth.
Quick answer
- Credit: LEED v5 BD+C MRc4, Building Product Selection and Procurement, worth 1–5 points for New Construction and Core and Shell.
- How a product is scored: each of five criteria areas (Human Health, Climate Health, Ecosystem Health, Social Health and Equity, Circular Economy) scores 0–3. Only the highest score in each area counts. The scores add up to the MAS, capped at 5.
- How a category earns a point: (sum of each product’s value × MAS) ÷ (total value of the category) × 100 must exceed 100%.
- Worked result: our example flooring scores 7.0 before the cap and 0 after it. It moves the project’s flooring category from 88% (no point) to 160% (1 point).
How does LEED v5 MRc4 Building Product Selection and Procurement work?
MRc4 awards 1 point for each eligible product category whose multi-attribute adjusted value exceeds 100%, up to 5 points. It applies to nonstructural interior and enclosure products and replaces several LEED v4/v4.1 credits: Environmental Product Declarations, Material Ingredients, Sourcing of Raw Materials, and the Circular Products and Social Equity Within the Supply Chain pilot credits.
The nine eligible product categories: paints and coatings, adhesives and sealants, flooring, walls, ceilings, insulation, furniture, composite wood, and plumbing fixtures.
Points by number of categories achieved (Table 1, LEED v5 BD+C Reference Guide):
| Product categories over 100% | Points |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
The three achievement levels. Each criteria area is scored at one of three levels, and the level is the multiplier:
- Level 1 (1x): a first step toward sustainability in that criteria area, such as disclosure.
- Level 2 (2x): a leadership position in the market; the product is optimized.
- Level 3 (3x): elite products at the forefront of sustainability.
The scoring rules that matter for the math:
- Scores add across criteria areas. A product with Climate Health 2 and Ecosystem Health 1 has an MAS of 3.
- Scores do not add within a criteria area. If one document gives Climate Health 3 and another gives Climate Health 1, only the 3 counts.
- The MAS is capped at 5. No product can earn a multiplier greater than 5x.
- Products that achieve two or more criteria areas are considered multi-attribute.
- Product value can be cost, area, volume, or units, but use one basis for the whole category.
To get each product’s adjusted value:
Adjusted product value = Product value × MAS
Then apply Equation 1 to the whole category:
Category adjusted value (%) = 100 × [sum of (Product value × MAS) for every product] ÷ [total value of all products in the category]
In practice, project teams enter each product into a calculator in Arc, which scores the products and the category.
What are the five criteria areas, and which documents earn each level?
USGBC’s Criteria Areas and Achievement Levels resource (v1.3, February 2026) lists the documents that earn each level. Levels for a non-wood flooring product most often come from HPDs, Declare labels, EPDs, Cradle to Cradle certification, recycled content, and approved take-back programs.
| Criteria area | What it rewards | Level 1 (1x) examples | Level 2 (2x) examples | Level 3 (3x) examples |
| Human Health | Disclosing and avoiding harmful substances | HPD pre-checked for LEED, disclosed to 1,000 ppm; any Declare v2.0 label; C2C Bronze | Third-party verified HPD to 100 ppm with no GreenScreen LT-1 or no GHS Category 1 hazards; Declare Red List Free or Red List Approved (third-party verified); Green Seal GS-11; C2C Silver | C2C Gold or higher, or C2C Material Health Certificate Gold or higher |
| Climate Health | Measuring and cutting embodied carbon | Product-specific Type III EPD (ISO 14025 plus EN 15804 or ISO 21930, cradle-to-gate or wider) | Verified comparative EPD report showing a GWP reduction of more than 20% | Comparative EPD report showing a GWP reduction of more than 40%, plus at least 10% reductions in three of four other impact categories (acidification, eutrophication, smog formation, abiotic depletion); C2C v4/v4.1 Platinum |
| Ecosystem Health | Cutting supply-chain harm to land, water and forests | Optimized EPD (>20% GWP), which also scores 1 here; C2C v4/v4.1 Silver or Gold; FSC Recycled wood | FSC Mix or PEFC Certified wood; C2C Platinum | FSC 100% or SFI 100% from certified forest |
| Social Health and Equity | Protecting human rights in the supply chain | C2C v4/v4.1 Bronze or Silver; BIFMA LEVEL 2024 Tier 3 or 4; PEFC or SFI chain-of-custody labels | C2C v4/v4.1 Gold; FSC Mix or FSC 100% | C2C v4/v4.1 Platinum |
| Circular Economy | Recycled, biobased, reused or take-back products | Recycled content, scored as (post-consumer % + ½ pre-consumer %), up to 1x; biobased content at ½ its %, up to 0.5x; USGBC-approved Extended Producer Responsibility (EPR) take-back program at 1x | 100% reused or salvaged product; C2C v4/v4.1 Gold | C2C v4/v4.1 Platinum or Certified Circularity Platinum |
Two details trip people up:
- One document can score in several areas. An optimized EPD with more than a 20% GWP reduction scores Climate Health 2 and Ecosystem Health 1, for a total of 3. C2C Bronze (v4.0/4.1) scores Human Health 1, Social Health and Equity 1, and Circular Economy based on its recycled or biobased percentage.
- Recycled and biobased content score as a fraction, not a whole number. A product with 40% qualifying recycled content scores 0.4, not 1. An approved take-back program, by contrast, scores a flat 1.
The approved EPR programs listed in v1.3 include two for flooring: Flexco’s IMPACT Program (rubber and vinyl flooring) and Shaw Contract’s ReTurn Program (EcoWorx carpet and other approved products). USGBC updates the table through the LEED v5 addenda process, so check the latest version before you finalize a calculation.
The example product: a resilient sheet flooring with four documents
Our example is a hypothetical product, “Resilient Sheet Flooring X”, installed in a project’s corridors. It is not a real product. The manufacturer holds four documents, each a common choice for resilient flooring:
| # | Document | What it shows |
| 1 | Third-party verified HPD (HPD Open Standard v3.0, published in the HPD Public Repository) | Ingredients inventoried to 100 ppm; third-party verification of the inventory; no GreenScreen LT-1 hazards in the end-use product |
| 2 | Optimized EPD report | A verified comparison of two product-specific Type III EPDs under the same PCR, showing a 27% GWP reduction from manufacturer-controlled changes. Acidification, smog formation and abiotic depletion rose by no more than 10%. |
| 3 | Cradle to Cradle Certified Bronze (v4.1) | Certificate showing an overall Bronze level |
| 4 | Take-back program documentation | Proof that the product purchased is covered by an active, manufacturer-funded Extended Producer Responsibility (EPR) take-back program on USGBC’s approved list, with the recovery process and average diversion rate described |
How the HPD Guide shapes document 1. The HPDC Manufacturer HPD Guide v3.0 explains how inventory thresholds work. A 100 ppm (0.01%) threshold captures smaller amounts of a substance than 1,000 ppm (0.1%), so it is more complete. The guide also notes that the HPD’s “LEED Pre-Check” indicator is only a first scan of the data fields. It does not verify the information. That is why Human Health Level 2 also needs third-party verification of the content inventory, by an HPDC-approved verifier.
HPD v3.0 also adds optional fields for social certifications such as JUST, B Corp and Fair Trade. As of the v1.3 scoring table, these are not listed as eligible documents for Social Health and Equity. That is why our product relies on C2C for that area.
Worked example: calculating the product’s multi-attribute score
Resilient Sheet Flooring X scores in all five criteria areas, for a raw total of 7.0 that is capped at an MAS of 5.0. Here is the calculation in four steps.
Step 1: Score each document by criteria area
Scores come from Table 1 of the USGBC v1.3 resource.
| Document | Human Health | Climate Health | Ecosystem Health | Social Health and Equity | Circular Economy |
| Third-party verified HPD, 100 ppm | 2 | – | – | – | – |
| Optimized EPD (>20% GWP reduction) | – | 2 | 1 | – | – |
| C2C Certified Bronze v4.1 | 1 | – | – | 1 | % |
| USGBC-approved take-back (EPR) program | – | – | – | – | 1 |
Step 2: Score Circular Economy
Eligibility for a USGBC-approved take-back program scores a flat 1 in Circular Economy, the most a Level 1 document can earn. C2C Bronze does not add a separate score here. Its “%” means its Circular Economy value comes from the product’s recycled or biobased content, which can be no higher than 1, so the take-back program sets the score.
If the product relied on recycled content instead, the score would be a fraction: post-consumer % + ½ × pre-consumer %, capped at 1. For example, 30% post-consumer and 20% pre-consumer content would score 0.4.
Step 3: Keep only the highest score in each criteria area, then add across areas
| Criteria area | Highest score | Document it comes from |
| Human Health | 2 | Third-party verified HPD (C2C Bronze’s 1 is dropped) |
| Climate Health | 2 | Optimized EPD |
| Ecosystem Health | 1 | Optimized EPD |
| Social Health and Equity | 1 | C2C Bronze |
| Circular Economy | 1 | Approved take-back program |
| Raw total | 7.0 |
Step 4: Apply the cap of 5
MAS = min(7.0, 5) = 5.0. If the corridor flooring costs $60,000, its adjusted value for LEED is $60,000 × 5 = $300,000.
What each document adds, in order
| Documents held | Raw total | MAS | Adjusted value of $60,000 |
| None | 0 | 0 | $0 |
| + HPD pre-checked for LEED, 1,000 ppm | 1.0 | 1.0 | $60,000 |
| + Product-specific Type III EPD | 2.0 | 2.0 | $120,000 |
| Upgrade HPD to third-party verified, 100 ppm | 3.0 | 3.0 | $180,000 |
| Upgrade EPD to optimized (>20% GWP) | 5.0 | 5.0 | $300,000 |
| + Approved take-back program | 6.0 | 5.0 | $300,000 |
| + C2C Bronze v4.1 | 7.0 | 5.0 | $300,000 |
The last two documents do not raise the MAS, but they are not wasted. They act as a buffer. If the C2C certificate lapses, the product still scores 2 + 2 + 1 + 0 + 1 = 6.0, capped at 5. If the optimized EPD report expires, the product scores 2 + 1 + 0 + 1 + 1 = 5.0 and keeps the maximum (assuming the underlying product-specific EPD is still valid).
Project-level result: does the flooring category earn a point?
With Flooring X at MAS 5, the project’s flooring category reaches 160% and earns 1 point. With Flooring X at MAS 2, it reaches only 88% and earns nothing. The project below uses cost as its value basis, and its total flooring spend is $250,000.
| Flooring product | Cost | Documents | MAS: Scenario A | Adjusted: A | MAS: Scenario B | Adjusted: B |
| Resilient Sheet Flooring X (corridors) | $60,000 | A: HPD pre-checked + product-specific EPD. B: all four documents | 2 | $120,000 | 5 | $300,000 |
| Carpet tile (offices) | $100,000 | Product-specific Type III EPD | 1 | $100,000 | 1 | $100,000 |
| Luxury vinyl tile (break rooms) | $50,000 | None that qualify | 0 | $0 | 0 | $0 |
| Porcelain tile (restrooms) | $30,000 | None that qualify | 0 | $0 | 0 | $0 |
| Entry walk-off system | $10,000 | None that qualify | 0 | $0 | 0 | $0 |
| Total | $250,000 | $220,000 | $400,000 |
Scenario A: 100 × ($220,000 ÷ $250,000) = 88%. This is below 100%, so the category earns 0 points.
Scenario B: 100 × ($400,000 ÷ $250,000) = 160%. This exceeds 100%, so the category earns 1 point.
Break-even MAS for Flooring X. The other products contribute $100,000, so Flooring X must contribute more than $150,000. That means $60,000 × MAS > $150,000, or MAS > 2.5. Upgrading just the HPD to third-party verified (MAS 3) gets the category to 100 × ($280,000 ÷ $250,000) = 112%.
A rule of thumb: the 1 ÷ MAS share. A single product can carry a category on its own when its share of the category’s value is greater than 1 ÷ MAS.
| Product MAS | Share of category value the product needs on its own |
| 5 | More than 20% |
| 4 | More than 25% |
| 3 | More than 33.3% |
| 2 | More than 50% |
| 1 | Cannot carry a category alone |
Two things to keep in mind:
- A category earns at most 1 point. The 60 percentage points of surplus in Scenario B (160% vs. 100%) do not carry over to walls, ceilings, or any other category. Once a category is safely over 100%, put your next documentation effort into another category.
- “Exceeds 100%” is the threshold. A category in which every product scores exactly 1 lands at exactly 100%. Confirm with the Arc calculator how that edge case is treated before you rely on it.
Common mistakes and a documentation checklist
Most scoring errors come from adding scores within one criteria area or from documents that do not meet USGBC’s format requirements.
Common mistakes
- Adding two scores in the same area. An HPD (Human Health 2) plus C2C Bronze (Human Health 1) gives Human Health 2, not 3.
- Rounding Circular Economy up to 1. At Level 1, recycled and biobased content score as a fraction. Biobased content counts at half its percentage and is capped at 0.5.
- Counting an industry-wide EPD as Level 1. Climate Health Level 1 needs a product-specific (manufacturer-specific) Type III EPD. An industry-average EPD can serve only as the baseline for a Level 2 comparison, and only if the manufacturer is named as a participant.
- Claiming GWP cuts the manufacturer did not cause. Reductions from grid emission factor updates, regulation, or LCA software and dataset changes do not count toward an optimized EPD.
- Mixing value bases. Use cost, or area, or volume, or units, consistently for every product in the category.
- Using expired documents. HPDs, EPDs and certificates all carry validity periods. Check them against the project’s documentation dates.
- Counting “LEED Pre-Check” as verification. The HPD pre-check is a self-check of data fields, not third-party verification.
Checklist for each document
- HPD (Human Health Level 1): product name, type and description; a unique ID; inventory to at least 1,000 ppm; pre-checked for LEED; published in the HPD Repository; validity period shown.
- HPD (Human Health Level 2): all of the above, plus inventory to 100 ppm, a third-party verification statement covering the content inventory, and no GreenScreen LT-1 or no GHS Category 1 hazards.
- Product-specific EPD (Climate Health Level 1): ISO 14025 plus EN 15804 or ISO 21930; cradle-to-gate scope or wider; unique ID; program operator; independent verifier; declared unit; manufacturing locations; PCR cited; ISO 14044 conformance; expiration date; public URL.
- Optimized EPD report (Climate Health Level 2): baseline and new EPD under the same PCR; baseline expired no more than 5 years before the new EPD was published; more than 20% GWP reduction; acidification, smog formation and abiotic depletion each up no more than 10%; a narrative of how the cuts were made; verified by an independent party operating under ISO 17065.
- C2C certificate: shows the overall certification level and version (v3.1 and v4/v4.1 score differently).
- Recycled content: pre- and post-consumer percentages by weight, claimed in line with ISO 14021.
- EPR take-back: program is on USGBC’s approved list, and you have proof that the purchased product is covered.
Frequently asked questions
What is a multi-attribute score (MAS) in LEED v5?
The MAS is a product’s combined score in LEED v5 MRc4. It is the sum of the highest score (1, 2 or 3) the product earns in each of five criteria areas, capped at 5. A product’s value is multiplied by its MAS to get its adjusted value for LEED.
What is the maximum MAS a flooring product can earn?
Five. Our example flooring product totals 7.0 across the five criteria areas, but the score is capped at 5.
How many LEED points can flooring earn in LEED v5 BD+C?
One. Each product category that exceeds 100% earns 1 point, and the credit allows up to 5 points across the nine categories.
Does a Health Product Declaration (HPD) count in LEED v5?
Yes, under Human Health. An HPD pre-checked for LEED and disclosed to 1,000 ppm scores 1. A third-party verified HPD disclosed to 100 ppm, with no GreenScreen LT-1 or no GHS Category 1 hazards, scores 2.
Does an EPD count in LEED v5?
Yes, under Climate Health. A product-specific Type III EPD scores 1. An optimized EPD with a GWP reduction of more than 20% scores 2 in Climate Health and 1 in Ecosystem Health, for a total of 3. An optimized EPD with a reduction of more than 40%, plus at least 10% reductions in three of four other impact categories (acidification, eutrophication, smog formation, abiotic depletion), scores 3 in Climate Health and 2 in Ecosystem Health, for a total of 5.
Can I add an HPD score and a Declare score together?
No. Both score in Human Health, and only the highest score in each criteria area counts.
How does recycled content score for flooring?
In Circular Economy, as post-consumer % + ½ pre-consumer %, up to a maximum of 1. For example, 30% post-consumer plus 20% pre-consumer scores 0.4.
What share of flooring spend does a MAS-5 product need to earn the point by itself?
More than 20% of the category’s total value. In general, a product needs more than 1 ÷ MAS of the category’s value to carry it alone.
What counts as flooring in LEED v5?
MRc4 names flooring as a product category but does not define it. The Reference Guide’s definition of the flooring category appears under MRc3: Low-Emitting Materials. It includes hard and soft surface finishes (carpet, ceramic tile, vinyl, rubber, engineered and solid wood, stone, laminate), raised flooring, entryway systems, area rugs, wood subflooring and underlayments. Poured concrete, wet-applied floor products, and composite wood subflooring are excluded. Composite wood subflooring goes in the composite wood category.
Which LEED v4.1 credits did MRc4 replace?
Environmental Product Declarations, Material Ingredients, and Sourcing of Raw Materials, plus the Circular Products and Social Equity Within the Supply Chain pilot credits.
Conclusion: which documents should a flooring manufacturer invest in?
For our example product, which starts with a pre-checked HPD and a basic product-specific EPD, the biggest gains come from two upgrades: a third-party verified HPD at 100 ppm and an optimized EPD. Together they take a product from MAS 2 to MAS 5. That moves the share of flooring spend it needs to carry a category on its own from more than 50% to just over 20%. An approved take-back program and C2C certification then add a buffer that protects the score if one document lapses. A product that already holds C2C Silver or higher, or is covered by an approved take-back program, starts from a higher score, so its best next step will be different.
Elixir Environmental works with building product manufacturers to prepare HPDs, EPDs, and other transparency documents. If you want to know where your products score today and which upgrade is worth the most points, Elixir can map your current documents against the LEED v5 criteria areas and plan the next step.
The product and project figures in this article are hypothetical and are shown for illustration. Scoring follows USGBC’s Criteria Areas and Achievement Levels resource v1.3 (February 2026) and the LEED v5 BD+C Reference Guide (July 2026 edition). USGBC updates both through the LEED v5 addenda process, so confirm the current version in Arc before you submit.
Sources
- S. Green Building Council, LEED v5 Reference Guide for Building Design and Construction, July 2026 edition: MRc4 Building Product Selection and Procurement (pp. 143–145) and MRc3 Low-Emitting Materials product category definitions (pp. 138–139).
- S. Green Building Council, Criteria Areas & Achievement Levels in LEED v5: Additional Guidance for the MR Credit Building Product Selection & Procurement, v1.3, February 24, 2026.
- S. Green Building Council, LEED v5 credit library: MRc4 Building Product Selection and Procurement.
- Health Product Declaration Collaborative, Manufacturer HPD Guide v3.0.
- Health Product Declaration Collaborative, HPD Public Repository.
- BuildingGreen, LEEDuser: NC-v5 MRc4 Building Product Selection and Procurement