Buying Laminate Flooring at Builders Warehouse
To choose laminate at Builders Warehouse, compare the exact product’s room-use limits, water-resistance claims, thickness, locking system, underlay rules and warranty, then check current price and branch availability. Before buying, inspect your subfloor and confirm its moisture and flatness meet that product’s instructions. A careful check now can help prevent costly swelling, gaps or failed joints later.
Shopping for laminate can feel like choosing from a wall of similar-looking boards. Product names and water-resistance claims do not always make it clear which option suits your room, subfloor or budget. I use a simple rule: compare the product label and installation guide, then match their requirements to the actual floor at home.
Builders Warehouse stock, prices and product ranges can vary by branch and over time. Check the current product listing or ask the store to confirm details before travelling or placing an order. Do not rely on a sample, display or broad marketing claim in place of the instructions for the exact product you plan to buy.
What to check before choosing laminate at Builders Warehouse
This first check is about fit, not appearance alone. Identify the room, the type of subfloor and the likely sources of moisture, then use those facts to narrow your options. A laminate product is suitable only if its stated room-use and installation rules match the conditions in your home.
Start by measuring the room and noting doorways, stairs, adjoining floor types and fixed objects such as kitchen cabinets. These details affect how much flooring and how many transitions you need. Measure the floor area in square metres, then ask how the product’s packaging quantity is shown and whether the recommended order includes extra boards for cuts and future repairs.
Make a shortlist using the product information available online or in store. For each option, record:
- Product name and reference code, so you can confirm you are comparing the same item.
- Price and coverage per pack; calculate the cost per square metre from those figures.
- Board thickness and dimensions, if listed.
- Room-use limits, water-resistance wording, approved subfloors and installation method.
- Whether an underlay is attached or sold separately.
- Warranty conditions, exclusions and care instructions.
- Current stock at the branch you plan to use.
A thicker board is not automatically the best choice for every room. More important is whether the full product system, including any underlay, fits the subfloor and follows the maker’s instructions. Take photos of the product label and guide, or save the product page, so you can check the details at home.
Choosing compatible laminate, underlay and installation method
Laminate flooring is commonly installed as a floating floor: its boards lock together but are not fixed to the subfloor. The exact locking method and approved base materials depend on the product. Before purchasing, confirm the installation guide allows the method and room you have in mind.
Check the exact product’s suitability for each room. A claim such as “water-resistant” does not mean the floor is waterproof or suitable for standing water. Ask what the claim covers, how long spills may remain before damage is possible, and whether bathrooms, laundry rooms or other wet areas are excluded. Get the answer from the product’s instructions or warranty, not from the name alone.
Underlay is the layer between the subfloor and flooring, when the product requires one. Confirm whether the laminate has an attached pad, needs a separate underlay, or requires a vapor retarder over concrete. These are not interchangeable in every system. Do not add a second underlay under an attached pad unless the manufacturer expressly permits it; an unapproved combination can affect floor movement and warranty coverage.
| What to compare | What to confirm before buying | Why it matters |
|---|---|---|
| Room-use rules | Approved rooms and any wet-area exclusions | A product may not suit every room |
| Water-resistance claim | Its limits, spill response and exclusions | “Resistant” does not mean waterproof |
| Underlay | Attached pad, separate underlay, or both only if approved | The wrong layer can conflict with instructions |
| Concrete installation | Required vapor-control product and seam details | Moisture from a slab can damage laminate |
| Board and locking system | Installation direction, cutting and joint rules | Products may require different fitting steps |
| Warranty | Conditions, exclusions and proof of purchase | Coverage depends on following stated requirements |
Also check whether the product can be installed over the existing floor covering. Do not assume that a stable-looking surface is acceptable. Confirm approved coverings, permitted height build-up and door-clearance needs in the guide. If the instructions are unclear, ask the retailer to help locate the manufacturer’s installation document before buying.
Inspecting and preparing concrete or wood subfloors
The subfloor is the surface beneath the laminate. It must be sound, stable, clean and sufficiently flat. Concrete and wood need different checks, so identify what you have before choosing underlay or scheduling installation. Repair structural damage or active moisture problems before covering the floor.
For flatness, a common laminate limit is about 5 mm over 3 m (3/16 in. over 10 ft), but the selected product may require a tighter tolerance. Check its manual first. Use a straightedge to find high and low areas; correct them with methods allowed for that subfloor. Do not use leveling materials without checking that they suit the substrate and laminate system.
On concrete, look for damp areas, leaks, cracks and signs of past water entry. The slab must be sound, dry and clear of curing compounds, adhesive residue and loose debris. Test moisture using the method and limits required by the laminate manufacturer. There is no single moisture limit that can safely be applied to every laminate product and underlay.
A vapor retarder may be required over concrete, but it cannot fix active water intrusion or moisture beyond the product’s approved limits. Follow the specified material, overlap and seam-taping instructions. Do not treat any underlay as a moisture barrier unless the product documentation says it serves that purpose.
On a wood subfloor, check for loose or squeaking panels, water damage, soft areas and excessive movement. Fasten or repair loose sections as needed, but do not install over a visibly deflecting or unstable floor. If the floor has structural damage, address that before laying laminate.
Before ordering, inspect door heights and transitions to nearby floors. Added flooring thickness can affect door swing and the height difference at thresholds. Remove incompatible coverings and debris, and follow the guide on whether the flooring should be stored or acclimated before installation.
Managing transitions, clearances and floor movement
Laminate needs room to expand and contract as conditions change. It must not be trapped by walls, pipes, door frames, cabinets or trim. Check the exact installation guide for edge gaps and transition rules, then plan these details before fitting the first board.
Many laminate products call for about 6–10 mm (1/4–3/8 in.) of clearance around walls and fixed objects. This is a general range, not a universal specification. Use the exact gap in your product’s instructions and preserve it at door frames, columns, pipes and other restraints.
Plan transitions where laminate meets another floor or crosses a doorway, as the product guide requires. Choose compatible transition pieces and install them so they cover the gap without pinning the floating floor. Baseboards and trim should also cover the perimeter gap without fastening through the laminate in a way that blocks movement.
During installation, follow the specified board direction, locking method, row staggering and cutting clearances. Do not guess at a pattern based on another brand’s instructions. Before use, check that joints are closed, doors open freely and transitions are secure without restricting the floor.
What to buy and how to check the total
Your purchase list should cover the complete floor system, not just the boards. Compare the pack coverage and price, then confirm which extras the product requires. The goal is to avoid a second trip or a substitute component that conflicts with the installation guide.
Use a checklist like this when comparing options or asking a Builders Warehouse team member for help:
| Purchase item | Check before paying |
|---|---|
| Laminate packs | Exact product code, pack coverage, price and available quantity |
| Underlay | Required type, attached-pad status and approval for the product |
| Vapor retarder | Whether it is required over your concrete subfloor and how to install it |
| Transitions | Correct type for doorways and adjoining floor heights |
| Trim | Coverage of edge gaps without pinning the floating floor |
| Tools and accessories | Whether they suit the specified locking and cutting method |
Estimate the number of packs by dividing the measured floor area by the coverage per pack, then rounding up to whole packs. Add an allowance for cuts only after considering room shape, board layout and the seller’s or manufacturer’s guidance. Confirm the final quantity and return conditions before purchase, especially if the material is ordered in or sold in full packs.
Illustrative installation scenarios: what the checks change
These examples are practical scenarios, not reports of specific customer projects. They show how a subfloor check can change a shopping decision. In each case, the product’s own guide remains the final source for approved limits and installation details.
Concrete living room with a damp patch: A homeowner finds a damp area near an exterior wall while measuring for laminate. The right next step is to find and fix the moisture source, then test the concrete as the chosen product requires. A vapor retarder alone is not a fix for active water entry. Delay the flooring purchase until the slab meets the product’s limits.
Wood floor with squeaks and movement: A homeowner wants laminate over a wood subfloor, but several panels move underfoot. Check for loose or damaged sections and repair them before installation. If the floor remains soft or visibly deflects, do not cover it with laminate. A new finish cannot make an unstable base sound.
Open-plan room with tile at the doorway: A homeowner compares pack costs but has not checked the height of the existing tile. Measure the adjoining floor and door clearance, then select a compatible transition. A lower board price may not reflect the full job cost if required transitions or underlay are missing.
Cleaning, spill response and long-term floor protection
Care requirements differ by product, so keep the cleaning and spill instructions with your purchase records. Follow the specified cleaner and moisture limits. Promptly address spills as directed, and do not assume that a water-resistance claim makes standing water harmless.
Use suitable furniture protection and follow the manufacturer’s guidance on cleaning tools and products. Avoid unapproved treatments that could affect the surface. If a board swells, edges lift or joints open, investigate moisture and installation conditions rather than simply covering the damage.
Keep the receipt, product code, installation guide and warranty information. These records make it easier to confirm care rules or discuss a problem with the retailer or manufacturer. The key step is prevention: follow the exact product’s moisture, underlay, clearance and cleaning instructions.
Frequently asked questions about laminate at Builders Warehouse
These answers offer a quick buying checklist, but they do not replace the instructions for a specific product. Product stock, price, installation rules and warranty terms can change. Confirm current details with the listing, product guide or branch before you pay.
How do I check if a laminate product is in stock?
Check the current product listing for your chosen branch or contact the store. Stock can vary by location and date.
How do I compare laminate prices?
Compare price per square metre using the pack price and its stated coverage. Include required underlay, vapor control and transitions in your estimate.
Is water-resistant laminate waterproof?
Not necessarily. Check the product’s definition, room limits, spill instructions and warranty exclusions. Do not use it where standing water may occur unless the maker approves it.
Can I install laminate over concrete?
Only if the product allows it and the slab meets its flatness and moisture limits. Follow its vapor-retarder and underlay instructions.
Can I install laminate over a wood subfloor?
Often, if the product approves that subfloor and it is stable, sound, dry and sufficiently flat. Repair loose, damaged or moving areas first.
Do I need underlay under laminate?
It depends on the product. Check whether it has an attached pad and whether separate underlay is required. Do not add a second layer unless approved.
What flatness should I check?
A common limit is about 5 mm over 3 m, but the selected product may require a tighter tolerance. Use its installation guide.
How much expansion space should I leave?
Many products require about 6–10 mm at walls and fixed objects, but use the exact clearance stated in the guide.
Can I install laminate over an existing floor?
Only if the product instructions allow that covering and the surface is sound, stable and sufficiently flat. Also check door and transition heights.
What should I do if the concrete is damp?
Find and address the moisture source, then test using the manufacturer-approved method. Do not install until the slab meets the product’s requirements.
The best choice is the product whose room-use rules, moisture limits, underlay and installation details fit your home, not simply the one with the most appealing display or lowest pack price. Confirm those details with Builders Warehouse before purchase, then inspect and prepare the subfloor before installation.
(This article was written by one of our staff writers, Michael Roberts. Visit our Meet the Team page.)
