{"name":"Home-project material yields and allowances","version":"2026-09-16","method":"Manufacturer yields and coverage are copied from the linked product data. Calculator defaults are the editable planning allowances used on MeasureSpark tool pages. Owner extra-stock figures are copied from the named construction standard and are not treated as cutting waste.","assumptions":["A manufacturer yield is not a universal industry average.","A calculator default is a disclosed starting point, not a code requirement.","Owner extra stock is material held after installation and is separate from offcuts created during layout."],"precision":"Bag yields are copied as published approximate mixed volumes. Coverage is a published range, not a single tested average.","limitations":["No category-level savings, waste or coverage average is claimed from these rows.","Site conditions, product substitutions and local requirements take priority over calculator defaults."],"rows":[{"id":"quikrete-40lb-yield","material":"Packaged concrete mix, 40 lb bag","kind":"manufacturer-yield","value":"Approximately 0.30 ft³ (8.5 L) mixed","applicability":"QUIKRETE Concrete Mix No. 1101 40 lb bags.","limitation":"Yield is approximate after mixing with water as directed. Other brands and mixes publish different yields.","sourceName":"QUIKRETE Concrete Mix No. 1101 data sheet","sourceUrl":"https://www.quikrete.com/pdfs/data_sheet-concrete%20mix%201101.pdf"},{"id":"quikrete-60lb-yield","material":"Packaged concrete mix, 60 lb bag","kind":"manufacturer-yield","value":"Approximately 0.45 ft³ (12.7 L) mixed","applicability":"QUIKRETE Concrete Mix No. 1101 60 lb bags.","limitation":"Confirm the bag size on the pallet. Regional 90 lb bags are listed separately on the same sheet.","sourceName":"QUIKRETE Concrete Mix No. 1101 data sheet","sourceUrl":"https://www.quikrete.com/pdfs/data_sheet-concrete%20mix%201101.pdf"},{"id":"quikrete-80lb-yield","material":"Packaged concrete mix, 80 lb bag","kind":"manufacturer-yield","value":"Approximately 0.60 ft³ (17 L) mixed","applicability":"QUIKRETE Concrete Mix No. 1101 80 lb bags.","limitation":"This is mixed volume, not a structural specification. Ready-mix orders use supplier increments, not bag yields.","sourceName":"QUIKRETE Concrete Mix No. 1101 data sheet","sourceUrl":"https://www.quikrete.com/pdfs/data_sheet-concrete%20mix%201101.pdf"},{"id":"sherwin-williams-gallon-coverage","material":"Interior architectural latex paint","kind":"manufacturer-coverage","value":"350–400 sq ft per gallon at 4 mils wet","applicability":"Sherwin-Williams SuperPaint Interior Latex product data, typical coverage range.","limitation":"Texture, porosity, color change, primer and film thickness change coverage. Use the can label for the product being bought.","sourceName":"Sherwin-Williams SuperPaint Interior Latex product data","sourceUrl":"https://www.sherwin-williams.com/document/PDS/en/035777316627/"},{"id":"texas-state-tile-overage","material":"Ceramic tile extra stock","kind":"owner-extra-stock","value":"5% extra stock (2% when the job exceeds 10,000 sq ft)","applicability":"Texas State University construction standard 09 30 13, owner extra material for matching later repairs.","limitation":"This is maintenance stock after installation, not a cutting-waste factor for a DIY layout. Campus standards are not a national tile code.","sourceName":"Texas State University Division 09 ceramic tile standard","sourceUrl":"https://docs.gato.txst.edu/141404/09_30_13-Ceramic-Tile.pdf"},{"id":"quikrete-long-narrow-10","material":"Grout or jointing sand, long narrow layouts","kind":"manufacturer-yield","value":"Long, narrow sections may require 10% more material","applicability":"QUIKRETE online calculator notes for grout joints and paver jointing sand over a square section.","limitation":"The note applies to those calculator modes, not to every concrete slab. It is not a compressive-strength or mix-design rule.","sourceName":"QUIKRETE concrete calculator","sourceUrl":"https://www.quikrete.com/calculator/main.asp"},{"id":"measurespark-concrete-10","material":"Rectangular slab concrete, calculator default","kind":"calculator-default","value":"10% ordering allowance on geometric volume","applicability":"MeasureSpark concrete calculator default for an ordinary rectangular slab.","limitation":"Not a manufacturer requirement or building-code minimum. Uneven bases, thickened edges and footings can need more; well-formed small slabs may need less.","sourceName":"MeasureSpark concrete calculator methodology","sourceUrl":"https://measurespark.com/tools/concrete-calculator"},{"id":"measurespark-tile-10","material":"Ceramic or porcelain tile, calculator default","kind":"calculator-default","value":"10% cutting allowance on the tile count","applicability":"MeasureSpark tile calculator default for a simple straight layout.","limitation":"Diagonal, herringbone, mosaics and large-format centering can need more. Extra stock for later repairs is a separate owner decision.","sourceName":"MeasureSpark tile calculator methodology","sourceUrl":"https://measurespark.com/tools/tile-calculator"},{"id":"measurespark-flooring-10","material":"Flooring cartons, calculator default","kind":"calculator-default","value":"10% cutting allowance on net area","applicability":"MeasureSpark flooring calculator default for a rectangular room with a straightforward layout.","limitation":"Editable in the calculator. Product carton coverage and dye lots come from the label, not this table.","sourceName":"MeasureSpark flooring calculator methodology","sourceUrl":"https://measurespark.com/tools/flooring-calculator"}]}