How to Lay Oak Parquet Flooring: A Step-by-Step Guide
Laying oak parquet flooring is a technical installation that rewards careful preparation and patient, methodical working. The visual impact of a well-laid herringbone floor is significant, and the difference between a floor laid with precision and one laid carelessly is visible from across the room. This guide covers the complete process for laying engineered oak herringbone parquet on a concrete subfloor.
Step 1: Subfloor Preparation
The concrete subfloor must be flat, clean, dry and at the correct moisture level before any blocks are laid. Check flatness with a long straightedge: maximum deviation should be 3mm under 1.8 metres. Any high spots need grinding down; low spots and dips should be filled with a self-levelling levelling compound, allowed to cure fully, and checked again before proceeding.
Test moisture using a hygrometer slab test and confirm the concrete is below 75 per cent relative humidity. Apply a suitable primer to the concrete surface before the adhesive if required by the adhesive manufacturer's data sheet.
Step 2: Set Out the Pattern
Establish the starting point and orientation of the herringbone pattern. Snap a chalk line through the centre of the room along its main axis. Snap a perpendicular chalk line at the centre point. From the intersection, mark the position of the first block, which will typically be positioned at 45 degrees to the room's walls to create a symmetrical pattern.
Dry-lay five to ten blocks from the starting point to confirm the layout looks correct before committing to adhesive. Assess how the pattern will finish at the room's perimeter: make any adjustments to the starting position to avoid very narrow cut blocks at the main visible edges.
Step 3: Adhesive Application
Apply MS polymer adhesive such as Bona R848 or Sika T-55 to a working area of one to two square metres at a time, using the notched trowel specified by the adhesive manufacturer (typically an A1 or A2 notch profile for parquet blocks). Spread the adhesive evenly, working it into a consistent ridged bed. The adhesive open time is typically 20 to 40 minutes at room temperature; do not spread more than you can lay blocks into within this window.
Step 4: Laying the Blocks
Begin at the starting point and work outward in both directions along the main axis. Place each block firmly into the adhesive bed with a slight press-and-twist motion to ensure good adhesive contact across the full face of the block. Align each block precisely with its neighbours; the precision of each individual placement determines the overall quality of the pattern.
Periodically lay a straightedge alongside several blocks to check alignment. Any accumulation of error over a long run must be identified and corrected early, before too many blocks have been laid around the affected area.
Step 5: Cutting Perimeter Blocks
Cut perimeter blocks to fit within the 10 to 12mm expansion gap at all walls using a mitre saw for straight cuts and a jigsaw for any irregular angles. Take each measurement individually rather than assuming repeating cut widths; room geometry is rarely perfectly consistent.
- Flat subfloor is essential: level before starting
- Dry-lay to confirm layout before applying adhesive
- Apply adhesive in small working sections
- Press each block firmly to ensure full adhesive contact
- Check alignment regularly with a straightedge
- Maintain 10-12mm expansion gap at all perimeters
Laying oak parquet is skilled work that improves with practice. A first herringbone project will take longer than the same job done by an experienced fitter, but the process is learnable and the result is deeply satisfying. For a large or complex installation, a professional fitter with parquet experience is worth the investment.