Flooring Installation Materials Checklist

A laminate installation kit wastes the wrong underlayment when the floor is glue-down vinyl or set tile. Record the system, then copy only the supplies that system’s documents name.

Buy for the system in the room. Quick-Step Studio laminate, sheet code 2021_0326_QS_LOW_INST, read on 11 October 2026, is a floating floor and calls for a 3/8 inch expansion space on all sides. Shaw’s COREtec SPC guidelines, revision line 11052024, read the same day, allow floating or glue-down and set a 1/4 inch perimeter gap where the area is under 2,500 square feet, and a 1/2 inch gap where it is larger. The Tile Council of North America’s public Placement FAQ, also read that day, says every tile installation needs room to move and points to Handbook detail EJ171 for where those joints go. This page did not read EJ171, so tile spacing, mortar and grout stay blank.

• Write the system before you shop: floating laminate, floating vinyl, glue-down vinyl, or set tile.
• Copy underlayment, vapor film and the gap from that product’s sheet.
• Add adhesive and a roller only when the sheet you are using is glue-down.
• Leave tile mortar, grout and joint spacing empty until those documents are in hand.

The vinyl format guide separates plank, tile and sheet from the fixing method. A wood-look face does not choose a row on this checklist.

Which system are you buying supplies for?

Four buying paths are on this page. Two are laminate examples, one is a rigid-core vinyl sheet, and one is tile with the spacing document unread. They do not share a kit.

On a narrow screen, swipe the table sideways to read the final column.

Takeaway: Write the path in the first column before you add a line to the cart.

What does a floating laminate sheet put on the list?

Quick-Step Studio’s sheet is one product. Its numbers do not transfer to the Shaw sheet or to tile.

The floor is floating, and it can go above, on or below grade. The jobsite range printed on the sheet is 35 to 65 percent relative humidity and 60 to 85°F. It says not to install over a floor with a sump pump or in a room with a floor drain. Acclimate the product unopened. If there is no time for that, the sheet limits the difference between storage and the room to 25°F and 20 percent relative humidity.

Subfloor unevenness is limited to 3/16 inch in a 10-foot span, filled with floor leveling compound. For concrete, the sheet wants a moisture test: calcium chloride (ASTM F1869) at or below 5 lb/1000 ft²/24 hr, or below 80 percent relative humidity with an in-situ probe (ASTM F2170). Wood subfloor moisture readings must be at or below 12 percent. Those are this sheet’s limits.

For concrete, install a vapor barrier with seams overlapped 8 inches or more. The sheet also names 6 mil (0.15 mm) virgin polyethylene. Planks without attached underlayment go over a single layer of underlayment appropriate for laminate. For planks that already have attached underlayment, the sheet allows Pergo Gold underlayment, Lowe’s part 670312, if you want it. Seal the foam edges with the tape that product’s instructions require, and do not add a separate vapor barrier with Pergo Gold.

The expansion space is 3/8 inch on all sides. Two spacers, thick side to thick side, make that 3/8 inch. Slide the flooring at least 1/4 inch under the door frame and wall base, and still leave a concealed 3/8 inch minimum under each. T-moldings are required in doorways of 4 ft (1.22 m) or less and in rooms 40 feet (12.2 m) or larger in either direction. Around pipes, leave 3/8 inch. The perimeter is sealed with Simple Solutions waterproof quarter round, Lowe’s item 3674489, or with 100 percent silicone. Where the quarter round is not used, fill the expansion space with 3/8 inch compressible polyethylene foam backer rod and cover it with silicone. Put silicone on the part of a molding or transition that touches the laminate.

A second laminate PDF hosted at Lowe’s, with no product name in the text read on 11 October 2026, is a different sheet. It lists a laminate kit with spacers, a tapping block and a pull bar, premium underlayment when the floor has no attached pad, and a 0.006 inch polyethylene vapor barrier over concrete. It tells you not to install more than one underlayment layer. Acclimation there is at least 48 hours in the closed package, at 60 to 80°F, and the room is held at 35 to 70 percent relative humidity. Its gap is also 3/8 inch, and it uses T-moldings for rooms longer or wider than 40 feet and for openings under 4 feet. Its concrete calcium chloride limit is under 5 lb/1,000 sq ft/24 hours (ASTM 1869), and wood subfloor moisture should not exceed 12 percent. Flatness there is 3/16 inch in 10 feet. Because the product name is not in the text, do not treat that PDF as Quick-Step Studio, and do not treat either sheet as every laminate floor.

Bestlaminate’s list of 15 August 2017 is a retailer tool list, not one of those sheets. It includes underlayment if none is attached, packaging tape, safety glasses, a dust mask, a tape measure, a carpenter’s square, a utility knife, a saw, and a kit whose spacer blocks must be 1/4 inch thick, plus a tapping block and a pull bar. It also lists glue or sealant for kitchens, baths, laundry and other wet-prone rooms, and a 6 mil virgin polyethylene film over concrete when the attached pad has no vapor barrier. A 1/4 inch spacer from that list is not the 3/8 inch space in the Quick-Step Studio sheet.

Common mistake: Buying the 1/4 inch spacers from a general laminate list and using them as the 3/8 inch space printed on the Quick-Step Studio sheet.

The vinyl and laminate comparison separates the two cores. A laminate vapor-barrier line does not fill a vinyl order.

Takeaway: Follow the sheet for the carton you will open. Keep the other laminate list as a contrast, not as a substitute.

What does the Shaw SPC sheet add for vinyl?

Shaw’s COREtec SPC guidelines, revision line 11052024, cover one rigid-core product. The vinyl and tile comparison uses the same sheet for a room-level contrast. This page uses it as a buying list.

The sheet allows floating or glue-down, on, above or below grade. It does not require acclimation. Install in a controlled room at 55 to 85°F (13 to 29°C), or an average of 70°F (21.1°C). The tool line names a tape measure, utility knife, jigsaw, tapping block or rubber mallet, pull bar, 1/4 inch spacers, T-square, safety glasses, and a broom or vacuum, plus subfloor-repair tools if you need them.

For floating over concrete, 6 mil poly film is recommended. Run it 2 inches up the wall, overlap the next course at least 4 inches, and tape the seams with clear tape over concrete. An added 6 mil poly film, or a vapor retarder with a perm rating of 0.1 or less, is an optional extra layer of protection. If the subfloor is not cured, the sheet says a moisture barrier such as 6 mil poly should be considered. The installer decides whether the slab is cured.

A second underlayment under a product that already has an attached pad is allowed in residential use, and that second layer cannot be thicker than 3 mm. Crumb-rubber underlayment is rejected. Do not lay sheet plastic over wood subfloors. The same sheet rejects carpet, wood subfloors that lie directly on concrete, and wood floors adhered to concrete.

Glue-down is a different cart. Install into wet adhesive and roll at once with a 100 lb three-section roller. The named adhesives are 2200, 4200, 200 and 1500, or an equivalent after a bond test. Read the adhesive label for that adhesive’s moisture limit. The sheet’s own concrete limits, in one sentence, are 8 lb for ASTM 1869 calcium chloride and 90 percent for ASTM 2170 in-situ relative humidity, with the phrase “per 1000 sq.ft. in 24 hours” in that sentence. Concrete pH is 7 to 10. Those figures belong to this SPC sheet. Quick-Step Studio’s 5 lb and 80 percent limits are a different product.

Perimeter expansion on this Shaw sheet is 1/4 inch for areas under 2,500 square feet and 1/2 inch for larger areas, for floating or glue-down. The floating steps also say 1/4 inch (6.35 mm). Use the rule that matches the area. Do not fasten wall moldings or transition strips to floating planks. If cabinets, including islands, will sit on the floor, that footprint must be fully adhered, plus 2 feet beyond the cabinets. In wet areas such as bathrooms, caulk the perimeter with flexible silicone. The sheet does not describe a shower or a floor drain.

Takeaway: A floating Shaw order can stop at poly, 1/4 inch spacers and unfastened trim. Glue-down adds the adhesive and the 100 lb roller.

What stays blank for ceramic and porcelain tile?

TCNA’s public Placement FAQ, read 11 October 2026, says tile is a facade and needs movement joints because the tile and the substrate expand and contract by different amounts. The Handbook recommends that allowance in every tile installation. In a small room a perimeter gap, often hidden by baseboard or shoe molding, can be enough. In a larger area the joints are visible. TCNA will not state the location or the frequency, because site conditions differ, and it points to Detail EJ171. Interior joints are placed more often where moisture or direct sunlight is expected. This page did not read EJ171, so no spacing, no sealant product and no joint width appear here.

INSTALL’s article of 18 October 2024, by David Gross, says to inspect, test and correct substrate moisture and pH before installation. It names the calcium chloride method, printed there as “ASTM Fl 869” for the F1869 test, and the in-situ relative humidity test ASTM F2170. It says missing the manufacturer’s moisture and pH limits can void that manufacturer’s warranty. For vinyl it lists adhesive failure, telegraphing, bubbling or blistering, and discoloration from high alkalinity. It does not print a tile mortar coverage rate or a grout quantity. Those cells stay empty.

Takeaway: Write “EJ171 not read” in the spacing cell until you have that handbook detail. Do not borrow the Shaw 1/4 inch or the Quick-Step 3/8 inch.

How do you fill one purchasing checklist?

Use one row per supply. An empty cell means the documents opened for this page did not state it. Do not fill it from the neighboring column.

On a narrow screen, swipe the table sideways to read the final column.

Compare the filled row with the carton in front of you. If the carton is a different laminate or a different vinyl, replace the example with that carton’s sheet and clear the cells the new sheet does not repeat.

Takeaway: An empty cell is a stop. Order that line only after the matching document names it.

When this does not apply

Stop and use a different document when any of these is true:

• The finish is a wall or a facade. A porcelain slab used as cladding is a different assembly. Start with the porcelain slab guide.
• The room has a sump pump or a floor drain. The Quick-Step Studio sheet excludes both. The Shaw sheet’s bathroom note is perimeter silicone, not a shower.
• You need to remove old resilient flooring or cutback adhesive. The Shaw sheet gives a warning, not a procedure.
• A gap, a moisture number or an underlayment rule from one column is being copied into another. Quick-Step Studio’s 5 lb limit and Shaw’s 8 lb limit are different sheets.
• The tile area is exterior. TCNA says the summer-to-winter temperature range has to be considered there. This checklist is an interior floor list.

Method and sources

Laminate figures for Quick-Step Studio come from the installation sheet coded 2021_0326_QS_LOW_INST, read on 11 October 2026. The second laminate PDF is the file hosted at Lowe’s and read the same day. Its text, as extracted, does not print a product name, so it is an example of another sheet, not a brand claim. Bestlaminate’s tool list is dated 15 August 2017 on that page. Vinyl figures come from Shaw Industries’ COREtec SPC guidelines, revision line 11052024. Tile movement statements come from TCNA’s public Placement FAQ. Handbook detail EJ171 was not read. Moisture-test names and the vinyl failure list come from INSTALL’s 18 October 2024 article. Manufacturer and association pages are not a building code. The instructions in the carton you buy take precedence.

No product named here is endorsed or ranked. We did not test or install any floor.