Product coverage tables
ReferenceRead captured coverage rows alongside their package, geometry, application, and version conditions.
By Kevin
Plan the material purchase
A coverage rate tells you how much work one specified package can cover under stated conditions. To use it for purchasing, you need the product, package size and application conditions—not just the number of square feet.
Use this page to compare the conditions recorded by the existing grout, mortar and membrane tools. The table contains a limited set of historical records, with the edition and restrictions shown beside each rate. It is not a list of interchangeable rates or a promise of field yield.
How to use this reference
- Identify the exact product and sales package. Preserve names such as “full unit,” “25 lb unit” or “1 US gal.”
- For grout, match tile length, width, thickness and joint width. For mortar, match the specified notch shape and all trowel dimensions. For membrane, match the application purpose and whether the rate covers the complete system.
- Check the edition note and confirm the current manufacturer data. If the current rate differs from a stored preset, do not use that preset as a current purchase recommendation.
- Enter the measured installed area, not the area of all spare tile you plan to buy. Enter any additional allowance once.
- Divide adjusted area by the matching package coverage and round upward to complete sales units. Review the package basis with the result.
Match the whole row
The rate and its conditions travel together. A larger number does not mean better product efficiency when package bases or application systems differ.
| Product / package | Matching conditions | Captured coverage | Record / restriction |
|---|---|---|---|
| LATICRETE SPECTRALOCK PRO / full unit | 12 × 12 × 3/8 in tile; 1/8 in joint | 160 sq ft / full unit | DS-221.0-1120, 2020 guide. Current edition unverified. |
| LATICRETE PERMACOLOR Select / 25 lb unit | 12 × 12 × 3/8 in tile; 1/8 in joint | 410 sq ft / 25 lb unit | Same captured 2020 guide; not interchangeable with a full epoxy unit. |
| CUSTOM RedGard / 1 US gal | Finished waterproofing system | 55 sq ft / package | TDS-104, February 14, 2025. Finished-system basis; do not multiply by coat count. |
| CUSTOM RedGard / 3.5 US gal | Finished waterproofing system | 192 sq ft / package | Same captured system and edition; other application purposes differ. |
| CUSTOM VersaBond / 50 lb bag | Square notch: 1/4 × 1/4 × 1/4 in | 85–95 sq ft / bag | Historical TDS-119, December 12, 2023. Live-page discrepancy unresolved; not a current rate recommendation. |
| CUSTOM VersaBond / 50 lb bag | Square notch: 1/4 × 3/8 × 1/4 in | 60–67 sq ft / bag | Same historical edition; current coverage requires confirmation. |
If your conditions do not match
- Record the exact product and package first.
- Match tile length, width, thickness and joint width for grout; match application and trowel for mortar.
- Keep per-coat coverage separate from complete-system coverage.
- Do not interpolate, scale a row to another package, or substitute another brand without supporting product data.
Take a matched rate into an estimate
The grout tool implements the two captured grout rows above. The membrane tool keeps application purposes separate. The table itself does not calculate purchase quantities or select a suitable product.
Check a coverage row before rounding the purchase
Example inputs
| Input | Value |
|---|---|
| Measured area to grout | 400 sq ft |
| Recorded product / package | SPECTRALOCK PRO / full unit |
| Recorded tile geometry | 12 × 12 × 3/8 in; 1/8 in joint |
| Captured coverage | 160 sq ft per full unit |
| Elected allowance | 10% |
Calculation steps
- Convert 10% to 0.10 and adjust the measured area once: 400 × 1.10 = 440 sq ft.
- Divide by coverage in matching units: 440 sq ft ÷ 160 sq ft per full unit = 2.75 full units.
- Round the unrounded requirement upward: ceil(2.75) = 3 complete full units.
- Keep the package name with the answer: the purchase is 3 full units, not 3 bags or 3 gallons.
Checked result
| Result | Value |
|---|---|
| Adjusted area basis | 440 sq ft |
| Requirement before rounding | 2.75 full units |
| Purchase quantity | 3 complete full units |
This arithmetic uses the 2020 DS-221.0-1120 guide row implemented in the calculator. It does not establish current coverage or suitability. Confirm the current product, package and geometry before ordering. No arbitrary tile size or joint-width input is supported by this tool; an unmatched condition cannot be estimated with these presets. The 10% allowance is an example choice, not a universal instruction.
Start calculatorBefore you order
Use a rate only when its product, package and application conditions match your work. Keep the unrounded requirement for checking the arithmetic, then use complete package counts for purchasing. If no row matches, obtain the correct coverage information rather than adapting an unrelated rate.