Decking vs paving for a garden — pros and cons?

Decking and paving are the two main ways to create a usable outdoor floor in a UK garden, and each has clear strengths and weaknesses. This page lays out the pros and cons side by side.

The pros and cons of decking

Decking advantages:

• Builds out level over slopes, banks and uneven ground with minimal excavation.
• Can be raised to door height or to capture a view, creating a defined seating platform.
• Warmer and softer underfoot than stone, with a slight, comfortable give.
• Drains through the gaps between boards, so surface water rarely pools.
• Composite ranges keep their colour with only an occasional wash.

Decking drawbacks:

• Timber needs regular cleaning, oiling or staining; composite needs the odd clean.
• Can grow slippery with algae in damp shade if not maintained.
• Boards aren't permanent — even quality composite is a 20–30 year surface, timber less.
• The void beneath needs ventilation and drainage to avoid trapped damp.

The pros and cons of paving

Paving advantages:

• Extremely durable — a well-laid patio can last decades, often a lifetime.
• Hard, stable surface that takes heavy furniture, planters and hot tubs without flexing.
• Wide choice of natural stone, porcelain and concrete finishes.
• Low maintenance — mainly washing and occasional weeding of joints.
• Reads as a permanent masonry extension of the house.

Paving drawbacks:

• Needs a firm, level sub-base, so it's costly and disruptive on sloping ground.
• Hard and cool underfoot.
• Must be laid to falls with drainage, or water puddles; smooth finishes can be slippery when wet or frosty.
• Raising a patio risks breaching the damp-proof course near the house.

Decking vs paving side by side

The table is a broad guide for a typical UK garden. Treat costs as fitted ranges that vary with materials, ground conditions, access and region.

Indicative fitted ranges for guidance only. Sources: Checkatrade decking and patio cost guides.

How levels and drainage decide it

The single biggest factor is usually the shape of your garden. Paving needs a level, compacted sub-base, so on flat ground it's straightforward, but on a slope you face expensive excavation or retaining walls to create that level. Decking sits on a sub-frame supported on posts or adjustable feet, so it builds out level over a slope with far less groundwork — which is why sloping and split-level gardens so often end up decked. Drainage works differently too: decking lets water fall through the board gaps, while paving sheds it across a surface that must be laid to a slight fall with somewhere for the run-off to go. Near the house, any new surface must sit at least 150mm below the damp-proof course; decking can be built down to suit, but raising a patio to meet a doorway can breach it and cause damp inside.

Cost, lifespan and how you'll use it

On flat ground a basic deck and a basic patio cost broadly similar amounts once installed, but the picture shifts with ground conditions and material choice. Decking on a slope often beats the cost of levelling for paving; premium composite or hardwood on a large flat area can cost more than simple paving. On lifespan, paving generally wins — it's a near-permanent, one-off spend, whereas decking boards, though long-lived, will eventually need replacing. Think hard about use: for a hot tub, heavy dining set or lots of hard-wearing entertaining, paving's solidity is reassuring; for a relaxed, raised seating area that feels part of the garden and is gentle underfoot, decking has the edge. Many gardens use both — a durable patio nearest the house and a deck stepping out or down to a lawn or view.

Looks and how each suits a garden

The two surfaces create different characters. A patio reads as a solid, permanent extension of the house — a masonry floor that ties the building to the garden, available in natural stone, porcelain and concrete in a huge range of colours and textures, from riven sandstone to sharp modern porcelain. It suits formal layouts, dining areas and gardens where you want a clear, hard-wearing zone. Decking gives a softer, more garden-like feel, with the warmth and line of timber-effect boards; raised or multi-level decks can define and frame a seating area, step down to a lawn, or wrap around a feature, which paving can't do without retaining walls. Composite ranges span pale greys to deep browns, and grooved or smooth finishes change the look further. There's no objectively better-looking option — it depends whether you want the permanence and solidity of paving or the warmth and flexibility of a deck, and which sits more comfortably with your house and planting.

Permissions for each

Both are usually straightforward, but the rules differ slightly. Decking is generally permitted development on a typical house, though a raised platform, decking over about 300mm high, or one covering a large share of the garden can need planning permission, and listed buildings and conservation areas have extra rules. Paving at ground level is usually permitted too, but laying a large area of impermeable hard surface can raise drainage questions, and front gardens in particular have rules encouraging permeable surfaces to limit rainwater run-off. For both, any new surface must sit at least 150mm below the damp-proof course at the house. These rules rarely stop a project, but it's wise to confirm what applies to your property — especially flats, listed homes or conservation areas — before you commit to either.

Which should you choose

Choose decking if your garden slopes or steps down, you want a level platform at door height, you prefer a warmer surface with give, and you're happy with occasional cleaning. Choose paving if your ground is flat or easily levelled, you want the longest possible lifespan, you'll put heavy items on it, and you like a hard, permanent finish. If you can't decide, combine them: a patio for the hard-working zone by the house and a deck for a raised or sun-catching seating area. Let the garden's levels and your intended use lead the decision, then weigh cost, feel and maintenance to settle it.

Frequently asked questions

Sources & further reading

• HomeOwners Alliance — decking guidance
• Checkatrade — decking cost guide

Figures on this page are typical UK ranges drawn from published sources and depend on your specific garden. They are guidance, not a quotation.