Oak Flooring – Technical

Oak Flooring – An Introduction

A brief guide to the maintenance and installation of your oak floor.

It is important to remember that your oak floor is only as good as the floor below it.

Call 01423 593794 for impartial, free and friendly advice.

Read a great Blog here about keeping your oak flooring in tip-top condition.


Your oak flooring is finished with 2 coats of UV hard wearing Osmo Oil.  The oil is durable and can withstand most domestic, everyday wear and tear usage.

Spillages and general maintenance can easily be completed using the compatible floor cleaning solution.

Your oak flooring can be vacuumed as regularly as needed with the addition of cleaning the floor periodically with Osmo ‘Wash and Care’ cleaning solution.

More stubborn marks and light scratches may need to be lightly sanded back and repaired with a matching coloured oil.

osmo maintenance kit

Site Conditions

It’s important to remember that the site conditions you acclimatise your oak flooring to are within specified limits. Ideally, the temperature needs to be between 17 and 20 degrees centigrade and relative humidity levels between 40% and 60%. These figures are comparable to a normal domestic room that is heated with traditional radiators or under floor heating.

Also, the temperature and humidity levels should be kept reasonably constant throughout the floors life to ensure a stable board is maintained.

It would stand to reason that extreme conditions will have an impact on the oak flooring dimensions and this in-turn would cause expansion or contraction depending on the atmospheric conditions.

engineered oak flooring with an osmo oil finish

Nailed Down

Your oak flooring can be nailed down if a suitable subfloor is available.  This could be joists, battens or plywood sheeting.

Care should be given when nailing regarding the location of electric wires and water pipes.

The recommended tool is called a Port-a-nailer and uses a barbed-like nail that is forced through the top of the tongue of the floorboard at 45 degrees.  This nail then grips the batten or joist below, pulling itself tighter to the adjacent board.


Glued Down

With the advancement of glues on the market, these make life easier as they have an elastic type property allowing the flooring to move should the need arise.

Glueing a floor needs to be done on a flat and level surface as severe undulations would not allow a good seal between the floor and subfloor.

If your subfloor is concrete or a levelling compound used for underfloor heating, a sealant should be used to enable the glue to adhere properly to the flooring.

The recommended glues and sealants would be:   (CLICK BELOW FOR DETAILS)



wood glue for oak flooring


Floating your oak flooring is possible where the subfloor is level.

Any discrepancies in levels would result in your oak flooring having a light bouncing effect.

A floating floor would require the addition of a sponge underlay to be laid between the subfloor and oak flooring.

Sub Floors

The definition of a level floor is described in BS8201 as not been able to see any gaps greater than 3mm over a 3m length when a straight edge is laid upon it.  Alternatively a 2mm gap over 2m.

This is a guide and if your subfloor has discrepancies greater than this, you have 2 options to make the floor level.

One.  Apply sufficient self-levelling compound to the low points within the floor.

Two. Build up the floor with minimum 50mm x 50mm battens to create a level floor to be nailed to.

For expert advice, further prices and general help, call 01423 593794