What this grout restoration estimate measures
Restoring existing grout color is separate from installing new grout or sealing an entire tile surface. This tool estimates the named colorant from a matching tile-and-joint coverage row.
Approximate consumption is first rounded to whole bottles for use. Purchasing then rounds those bottles to complete six-bottle cases. A one-case purchase can therefore contain more bottles than the coverage requirement.
LATICRETE Grout Colorant & Sealer only, using three exact approximate coverage rows from DS-65449-1026. Match tile dimensions and joint width. One bottle is 7 fl oz; the captured pack is sold as six bottles per case. Current coverage, package availability and suitability require confirmation.
How to use this calculator
- Project area. Enter the tiled surface area whose existing grout is to be recolored, in square feet. Do not enter just the narrow grout-strip area: the selected chart uses tiled surface area at its specified geometry.
- Product and tile/joint coverage. Choose an exact listed tile length, width, thickness and 1/8 in joint row. Only the three captured rows are supported; different geometry is not interpolated. Each coverage value is per 7 fl oz bottle of the named product.
- Waste / allowance. Optionally enter an additional allowance once before estimating bottles. Coverage is already approximate; no universal extra percentage or coat multiplier is supplied.
Select Calculate to update the result. Reset restores the example inputs and recalculates the example estimate.
Formulas, variables, and units
adjustedAreaSqFt = areaSqFt × (1 + wasteRate / 100); requiredBottles = adjustedAreaSqFt / coverageSqFtPerBottle
- areaSqFt
- Measured tiled surface area whose grout is to be recolored.
- wasteRate
- Explicit optional percentage allowance.
- coverageSqFtPerBottle
- Captured approximate coverage for the exact tile/joint row, per 7 fl oz bottle.
- requiredBottles
- Fractional bottle consumption before purchase rounding.
bottles = ceil(requiredBottles); cases = ceil(bottles / 6); purchasedBottles = cases × 6; purchasedFlOz = purchasedBottles × 7
- bottles
- Whole bottles estimated for coverage.
- cases
- Complete six-bottle cases to purchase.
- purchasedBottles
- Bottles contained in those cases, kept separate from estimated consumption.
- purchasedFlOz
- US fluid ounces represented by the complete case purchase.
How to read your result
Required bottles before rounding preserve the approximate coverage-based demand. Whole bottles for use round upward once; this is not the same as retail purchase.
Complete cases apply the captured six-bottle rule. Purchased bottles and liquid volume include that package rounding; do not round or reduce the case count using a two-decimal display.
The estimate does not select a grout color, diagnose grout condition, verify adhesion, determine preparation, or guarantee the field coverage.
Displayed values use up to two decimal places. Complete purchase units are rounded upward from the unrounded requirement.
A worked purchase example
- Project area
- 100 sq ft
- Product and tile/joint coverage
- LATICRETE Grout Colorant & Sealer — 1 × 1 × 1/4 in tile, 1/8 in joint — 42 sq ft per 7 fl oz bottle
- Waste / allowance
- 0 %
- Select the captured 1 × 1 × 1/4 in tile with 1/8 in joint row: approximately 42 ft² per 7 fl oz bottle.
- With 100 ft² and 0% allowance, adjusted area is 100 ft².
- Fractional demand is 100 / 42 = 2.3809523810 bottles; round upward to 3 bottles for coverage.
- The captured product is sold in six-bottle cases: ceil(3/6)=1 case. Purchase 6 bottles, representing 6 × 7 = 42 fl oz.
Independent arithmetic from the exact captured 42 ft² chart cell, not the FAQ’s unmatched approximate 35 ft² example. Coverage remains approximate and applies only to the listed product/geometry.
Frequently asked questions
Should I enter the area of only the grout strips?
No. Enter tiled surface area for the exact tile and joint geometry in the selected manufacturer row. That geometry accounts for the grout pattern in the coverage estimate.
Why does a three-bottle estimate ask me to buy six?
Three bottles are estimated consumption; the captured product sells in six-bottle cases, so one complete case contains six bottles.
Can I use a different joint width or another colorant?
No. Only the listed product and exact geometry rows are supported. No interpolation or transfer to a different product is supplied.
Does this also estimate new grout or full-surface sealer?
No. Those are separate tasks with separate coverage bases. This tool estimates recoloring existing grout with the named product only.
Scope and limitations
Project types
- Existing interior grout color restoration at a listed tile/joint geometry
Check the calculator assumptions and product conditions for your project.
Calculation limits
- LATICRETE Grout Colorant & Sealer only, using three exact approximate coverage rows from DS-65449-1026. Match tile dimensions and joint width. One bottle is 7 fl oz; the captured pack is sold as six bottles per case. Current coverage, package availability and suitability require confirmation.
- No color selection, condition diagnosis, generic coverage or new grout/sealer quantity inference.