What are the best decking options for Cambridge gardens?
Cambridge gardens suit both timber and composite decking, but the choice depends on budget, maintenance appetite, and how you use the space. Softwood timber decking (pressure-treated pine) is the most affordable option and gives a natural look that weathers to a silver grey over time. Hardwood decking such as oak or iroko is more durable but costs significantly more. Composite decking, made from a mix of recycled wood fibre and plastic, has grown rapidly in popularity because it resists rot, does not splinter, and needs almost no maintenance beyond occasional cleaning. For Cambridge specifically, the heavy clay soil beneath many gardens creates drainage challenges that affect all decking types. Proper ground preparation and sub-frame construction are essential to prevent waterlogging and structural movement, making the foundations as important as the boards themselves.
How much does decking cost in Cambridge?
The typical cost of decking installation in Cambridge is £80 to £120 per square metre fully installed by a specialist, including materials, sub-frame, and labour. Softwood timber decking sits at the lower end at £80 to £95 per square metre, while composite decking runs £100 to £120 per square metre depending on the brand and profile chosen. A standard 15 square metre deck therefore costs roughly £1,200 to £1,800. These figures are averages from Cambridge installers and may vary depending on site access, ground conditions, and design complexity. Steps, built-in seating, lighting, and balustrades all add to the total. ELawnCare does not install decking boards, but we handle the groundwork, site clearance, and fencing around decking areas as part of a wider garden project. Getting the ground right before the decking goes down saves money and prevents problems later.
How should you prepare the ground for decking on Cambridge clay?
Ground preparation is critical on Cambridge clay soil because clay retains water and swells when wet, then shrinks and cracks when dry. This seasonal movement can shift deck supports and cause boards to warp or become uneven. Start by clearing all vegetation, roots, and topsoil from the decking area. Lay a weed membrane over compacted subsoil to suppress growth beneath the deck. On heavy clay, install a drainage channel or gravel soakaway at the lowest point to prevent standing water under the structure. The sub-frame should sit on concrete pads or adjustable pedestals rather than directly on clay, allowing airflow underneath and accommodating ground movement. A minimum gap of 150 millimetres between the ground and the underside of the boards ensures adequate ventilation and reduces moisture buildup that leads to rot.
Should you choose composite or timber decking?
Timber decking costs less upfront but needs annual treatment with oil or preservative to stay in good condition, and typically lasts 10 to 15 years before boards need replacing. It can become slippery when wet unless treated with an anti-slip product. Composite decking costs 20% to 40% more initially but lasts 25 years or longer with minimal maintenance, just an occasional wash. It resists fading, staining, and algae growth better than timber. The main drawback of composite is that it can feel warmer underfoot in direct sun and some people find the uniform appearance less appealing than natural wood grain. For Cambridge gardens that see regular use and where low maintenance is a priority, composite is usually the better long-term investment. For budget-conscious projects or gardens where the natural look matters, treated softwood timber remains a perfectly good choice.
What decking design ideas work well in Cambridge gardens?
Cambridge gardens tend to be modest in size, so decking design should maximise usable space without overwhelming the plot. A single-level deck directly off the back of the house is the most popular layout, creating a seamless transition from kitchen or living room to garden. For sloping gardens, a raised deck with steps down to the lawn works well and avoids expensive levelling work. Built-in bench seating around the perimeter saves space compared to freestanding furniture. Integrating planters into the deck edges softens the look and ties the structure into the surrounding garden. Low-voltage LED lighting recessed into the boards or risers extends the usable hours and adds atmosphere. Consider leaving a border of planting between the deck and the boundary fence rather than decking right to the edge, which looks stark and blocks drainage.