Monthly Archives: July 2025

Knowing how to lay decking on uneven ground sounds difficult in theory, but in reality, it isn’t as complicated as you may think. It requires the right tools, materials, and a bit of planning. 

It could be a gently sloping garden or a steeper incline, regardless, we will will walk you through laying decking on uneven ground, step by step.

Do You Need Level Ground to Build Decking?

No. While a level base will make life easier, it’s absolutely possible to build a secure deck on sloped or uneven terrain. The key is to create a level frame using either ground anchored posts or adjustable pedestals to support your timber decking boards or composite decking. 

Don’t forget: You’ll need to account for water runoff too, decking should slope slightly away from your home at around a 2.5% gradient.

Planning for a Sloped Deck

Before you start digging, plan your layout carefully. Mark out the area, factor in expansion gaps (around 6mm), and decide whether you’ll need decking steps or a multi-level