Fitting Solid Wood Flooring, Skirting and Architrave

laying wood flooring on a concrete screed

Careful planning and consideration must be taken on selecting the right boards to ensure the best use of widths in certain areas and to minimise waste.  Not to mention having some of the nicer boards on show and not under beds or sofas.  Saving the more interesting and beautiful  boards in main walkways in every room where they can be seen and admired.

It is interesting to get a professionals perspective on fitting solid wood flooring, skirting and architrave.  Fitting wood flooring is best left to the experts.   In this guide I wanted to share with you a clients experience of having flooring, skirting and architrave fitted in their home.

The client required around 100m2 of solid ash flooring.   Tongue and grooved both sides, planed and ready to lay with a square shoulder. On receipt of solid wood flooring we advise that the timber is given time to acclimatise in the room where it is to be laid.

Stack boards with batons between each one to allow for air circulation.  Placing heavy weights on top of the stacks helps to prevent movement. Maintain the temperature of the room at a low level allowing boards to slowly acclimatise to their environment.

Fitting floors in this reasonably modern home required the employment of two different methods:


The upstairs flooring is fitted onto a chipboard base, here the method is to glue and secret screw into the tongue. This is known in the trade as “secret nailing”.  Secret nailing means putting nails or screws through the tongue of the wooden boards.  The nails are covered when the groove is butted up to the secured board.


As a belt and braces approach apply a thin screed on top of the existing concrete screed with a dust suppressant on top of this.  This ensures that the glue adheres properly to the subfloor. It’s really important when fitting to an existing concrete sub floor that it is in good condition.


Starting at the longest wall, begin placing wood directly onto your adhesive, pressing down hard to ensure that the board and subfloor develop a strong bond to each other. Continue laying the hardwood pressing the sides together tightly making sure to wipe away excess adhesive before it dries.


It is best to use the same glue all round for fitting, so regardless of the subfloor (timber/screed) we recommend Osmo MS Advance, it is one of the only glues that guarantees the product will work on larger width boards.

Glueing a solid wood floor can be a little tricky as a boards can move.   To prevent this happening, the laying has to be carefully planned.  Firstly leave a 10mm expansion gap around the perimeter of the room.  Next lay two or three boards at a time and employ staffs to hold the first boards in place while the glue goes off.  Do this to every 3-4 boards in widths across the whole of the floor area.


On completion of the entire floor the expansion gap is covered with the new skirting boards.   If using a square profile skirting board a biscuit is one way to join pieces of skirting together. Construction of these joints requires a tool called a biscuit joiner which is used to cut biscuit shaped holes in the wood. These shaped pieces of wood are then inserted into the joint thus preventing movement and adding strength. It helps to keep a flush surface of the architraves especially where the walls around a doorway are not flush with the door liner.  

Fitting a solid or engineered skill which is best left to the experts.  We supply solid and engineered flooring throughout the UK and can also recommend professional wood flooring fitters.

Author photo for Ben Sutton

About the author

Ben Sutton has established himself as independent hardwood timber merchant and supplier with a solid reputation built up over the last 20 years. He is committed to providing a bespoke and professional service to his clients at all times, whilst maintaining the highest quality product. Follow Ben on LinkedIn.