My floor has gaps in it

Wood based products naturally expand and contract with moisture and temperature. You will typically find that during the summer or humid months the joints within the floor will be more noticeable and gaps may appear.

There is a possibility that it is installation related, if you notice gaps immediately after installation (1 day or so) this might be an indication that the product has been insufficiently locked together or that not enough time was given for acclimatisation, which is the time required by manufacturer's to allow the product to expand or contract to match its installation conditions.

Cause:
Incorrect installation. Moisture - the loss of moisture results in the most common reason for shrinkage of individual pieces. If subjected to extreme moisture, the edges of the wood can crush, and subsequent drying and shrinkage can present larger than normal cracks. Square edge (un-bevelled) floors show cracks more than bevelled. Most gaps or cracks are seasonal - they show in dry months, or the cold season when heating is required, and close during humid periods. This type of separation and closing is considered normal.

Prevention;
Acclimatise board to the manufacturer’s guideline. Follow installation instructions carefully. Make sure the local living space is suitable for your flooring choice.

Cure:
Uplift and reinstall. Add moisture to the air space during dry periods. A constant Relative Humidity (RH) of 50% works in concert with the manufacture of wood floors to provide stability in the floor. Install a humidifier to control the RH levels.