Decking and patio slabs in Ireland

Oct 20

3 min read

A solid surface for outdoor living

Decking and patio slabs in Ireland need to handle a lot of rain, frequent shade and green algae. The material you choose matters, but so do the base underneath, how water drains away and how slippery the surface becomes when wet.

On Archizone you can browse listed decking, paving and landscaping suppliers, see what they offer and contact them directly. It is free for buyers. You can also see our list of landscape gardeners in Ireland.

Timber or composite decking

Softwood decking. The lowest-cost option. Use pressure-treated timber and expect to clean and re-treat it regularly.
Hardwood decking. Denser and longer lasting, with a richer look. Still needs cleaning and oiling to keep its colour.
Composite decking. Made from wood fibre and plastic, with little upkeep beyond cleaning. Capped boards resist staining and fading better. Ask about expansion gaps and how hot the boards get in direct sun.
Substructure. Whatever the boards, the frame underneath does the real work. Ask what joists are used, how they are treated and the spacing between them.

Porcelain or natural stone

Porcelain paving. Dense and stain resistant, so it stays cleaner in damp shade. Outdoor porcelain is usually thicker than indoor tiles and is laid on a full mortar bed with a priming slurry.
Natural stone. Limestone, sandstone and granite each have their own look and texture. Some stones absorb water and grow algae more easily, so ask about sealing and cleaning.
Concrete slabs. A practical, lower-cost option with many finishes.

Base and drainage

Sub-base. Patios need a well-compacted sub-base to stop slabs sinking or rocking. Decks need firm footings or ground screws.
Falls. Patios should slope slightly away from the house so water runs off rather than pooling against walls.
Drainage. Plan where surface water goes, for example to a channel drain, a soakaway or a planted area. Check the finished level stays below the damp-proof course of the house.
Raised decks. High decks can raise privacy and planning questions. Check with your local council before building one.

Slip resistance

Ask suppliers for slip resistance test results for wet conditions, such as pendulum test values, rather than relying on a description. Textured porcelain, riven stone and grooved or textured decking all help, but regular cleaning to remove algae matters just as much.

Ask the forum

Not sure whether composite decking or porcelain suits your garden, or how to handle drainage on your site? Ask in the Outdoor living forum, where homeowners and installers share practical experience.

List your business

Do you supply or install decking, paving or patio slabs in Ireland? List your business on Archizone so people planning garden projects can find you and contact you directly. Plans start at €14 a month + VAT, with Growth and Premium options for more visibility.

FAQ

Is composite decking better than timber in Ireland?

Composite needs less maintenance and does not rot, while timber looks more natural and costs less to start. In shaded, damp gardens both need regular cleaning to stay safe underfoot.

Is porcelain slippery when wet?

It depends on the surface finish. Outdoor porcelain is made with a textured finish for grip, so ask for wet slip test results before you choose.

Do I need planning permission for a patio or deck?

A ground-level patio or deck in the back garden usually does not, but raised decks, front gardens and protected structures can be different. Check with your local council if you are unsure.