Cupping floorboards

It is really an unpleasant experience when you beautiful floor boards get cupping or crowning. Cupping is a specific type of warping when a panel becomes “U” shaped across the face, which is mostly caused by a moisture variance or imbalance through the thickness of the board. “It is an obvious sign of a moisture problem in either the substrate ie the concrete slab to which the floor is fixed, or a damp sub-floor area. It can also occur where the floor has been flooded with water and the top surface of the board dries out or absorbs less water than the lower portion of the board. … Another common scenario is where boards are heavily exposed to sunlight (eg a sun room)  compounded with restricted airflow to the bottom surface.” Repairs should not be made before identifying the source of moisture, which might be

  • Leaks: building, plumbing, overflows, dishwasher or refrigeration…
  • Rain through an open window or spillage
  • No curtain or blinds protect board from too much sunlight
  • Poor drainage
  • Wet or damp basements
  • Sub floors with excessive moisture
  • Bad ventilation

Sanding and polish should be taken after the source of moisture is resolved and the floor stabilized. For floating floor boards, they usually can be replaced easily by new boards if you have spares available.cupped floor

How to check the surface of the subfloor

Before flooring, we need to check the surface of the subfloor if it is suitable for flooring on directly.

Planeness. When a straightedge 1.5 m long is placed on the surface at any position, no part of the surface shall be more than 6 mm below the straightedge.

Smoothness. When a straightedge 150 mm long is placed on the surface at any position, no part of the surface shall be more than 1 mm below the straightedge.

It’s an easy way to do before starting flooring.



Two methods for skirting and beading

There are basically two methods to deal with the existing skirting when we lay the floor.
Method 1: Remove skirtings and install the new/old skirting back after laying the floor.
Method 2: Leave skirtings in place and cover the expansion gap by nailing a bead of quad to the skirting.
Method 2 is the easier way. When using method 1, we have remove the skirtings first, which are usually fixed to the wall by nails or glue. Some minor damages may be caused to skirtings and wall. Some touch-up paints have to be done after installation.

AC Rating on Laminate Flooring

When we are dealing with cliets, we are often asked how durable is the laminate flooring. Here is a widely-accepted standard, AC rating to denote the durability level of laminate flooring. The rating of the floor boards are decided by considering the laminate’s resistance to brasion, impact, stains and cigarette burns. According to the product’s durability, the rating can leveled from AC1- AC5

AC1: House, One Person, Residential, Moderate traffic: Suitable for bedrooms or guest rooms;

AC2: Residential, General Traffic: Suitable for living rooms or dining rooms

AC3: Residential, Heavy Traffic: Suitable for all areas

AC3: Commercial, Moderate Traffic: Hotel rooms, small office

AC4: Commercial, General Traffic: Office, boutique, café

AC5: Commercial, Heavy Traffic: Public buildings, department stores

Usually our products are just AC3, because the course surface texture of AC4 and AC5 is too rough for bare feet, which will make users very uncomfortable.

8mm laminate flooring on sale!!

After moving to the bigger warehouse, there is still a lot of space we can use. The new shipment of 8mm laminate floor arrived this week and will be in warehouse by next Tuesday.

In order to keep our stock rolling faster, we’d like to offer a very special price for 8mm laminate. Retail for $15 inc GST per SQM, while  supply and install for $35.99 inc GST per SQM.

And also, from now on, we will give you standard underlay for free if you buy our floor boards.

We are still organizing everything in the new warehouse and showroom. When we get ready, more special prices are coming.


Awards Night – Floor Covering Association of New South Wales

Due to the busy work, it has been two weeks I did not catch a time to post a new blog since the last one. I feel a little guilty and take this as my duty to post a blog at least once every other week. So I decide I must post one before I go to bed. It sounds like a school assignment.

Not much to say today. Just recalled I have attended an awards night for graduating apprentices on 22nd Jun 2011. I was invited by the Floor Covering Association of NSW as honoured guest at the presentation of awards for the 2010 year. Here are some photoes I’d like to share with you.

How to Maintain Your Bamboo, Timber and Laminate Floors

Bamboo floortimber floor and laminate floor are relatively easy to take care of compared to carpets. But they still need routine maintenance.

  • Keep the floor away from water. If the area is flooded because of water pipe leaking, the floor will definitely get damaged. If you drop a glass of water, wipe off with towel as soon as possible.
  • Leave grit, especially sand outside when you walk inside. The grit will gradually grinds into the floor and abrades the finish. Use a vacuum cleaning frequently to clean the floor with a soft floor brush.
  • Put a door mat at every external door way.
  • Put adhesive furniture pads under table and chair legs

If you can use your floor carefully and keep it clean, the floor usually lasts much longer.

How can we tell the quality of timber floors.

When we choose the timber for flooring, the first thing we have to ask is whether the one we are going to use is of good quality. Usually we use the Janka rating as a measure of the wood’s hardness. The higher the number, the harder the wood. Below is the list of the Janka rating for various woods.

Species Name Janka Rating
Alpine ash 4.9
Australian Beech 8
Blackbutt 8.9
Brush Box 9.1
Ironbark 14
Jarrah 8.5
Spotted Gum 10.1
Sydney Blue Gum 8.1
Tallowwood 8.6
Tasmanian Oak 4.5-8.0
Bamboo 7-8
Bamboo Strandwoven 14-15

Steven X. Chen

How to choose the right underlay for floating floor?

Floating floors are getting more and more popular due to their easy installation and pleasing quality. Every time before we lay the floating floors, we need to lay underlay first to provide insulation against sound and moisture. How can we tell the quality of underlays? Of course usually, the more expensive,  the better. But we just want to choose the right one to meet our flooring condition without wasting money.

If you are living in a house or ground floor of an apartment building, you can use any underlay you like. Just choose one from the list of our website. If you are a unit with someone else living under, you have to choose the underlay which at least has an acoustic test certificate from third parties, which will avoid you from big trouble in the future.

Choosing the right underlay is simple, but important. If you have any questions, please don’t hesitate to contact us for more information.

Steven X. Chen

How to know the moisture content of the sub floor.

Before we lay the timber or floating floor, we need to know if the moisture content of the sub floor is suitable for flooring.

There are basically three methods: Preliminary test, Electrical resistance test and Hygrometer test. Both Electrical resistance test and Hygrometer test need expensive equipment to do the tests. Here we’d like to introduce the preliminary test,which is the easiest way. Anyone can do it.

A piece of impervious material such as polyethylene or vinyl sheeting (at least 600×600 mm). It is placed on the surface of the concrete slab to be tested and sealed through around all edges with moisture free sealing compounds. After a period of not less than 24 hours, the covered portion of the concrete slab is inspected for dampness. If this area is even slightly darker in colour than the remainder of the slab, the sub floor shall be considered too wet. Otherwise, it is dry sufficiently to lay floor on.

Steven X. Chen

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