For long-lasting, low-maintenance decking that performs in all seasons, the Trex Enhance Composite Deck – Clam Shell Square Edge 140 × 25mm x 4.88 m length is a top choice for trade installers and DIY landscapers alike. Part of the proven Trex Enhance™ range, this square edge board pairs realistic wood grain aesthetics with the durability of composite materials — perfect for patios, garden decks, balconies and outdoor entertaining areas.
The soft, neutral Clam Shell finish offers a contemporary look that works seamlessly with modern builds or classic settings, giving your project timeless appeal without the ongoing upkeep of timber.
Key Features:
Superior Composite Durability: Made from a high-performance blend of wood fibres and recycled polymer, this board resists rot, mould, splintering and moisture — keeping your deck looking great year after year.
Square Edge Profile: Classic board edge that gives flexibility in installation — fix with surface screws for a clean, premium finish.
Natural Wood Grain Look: Clam Shell’s soft, sandy-grey tones and detailed grain texture replicate timber aesthetics without fade-prone surfaces.
Low Maintenance: No sanding, staining or sealing required — a simple soap-and-water wash is all you need for seasonal cleaning.
Fade & Stain Resistant: Designed to handle UV exposure and everyday outdoor spills, preserving colour and performance in tough weather.
Installation guide can be found in our More Information Tab below
TJ’s Tip:
For best results, install on a firm, level joist structure with consistent joist spacing to aid ventilation and drainage — especially important in wet climates. Allow a small gap between boards for expansion and water run-off, and always use corrosion-resistant fixings.
* Effective from 3 December 2025 * Free delivery on order over €400, applies to Small & Light, Large & Heavy items within zone 1 only.
Zone Indicator:
To help you understand delivery availability, every item displays a zone icon, icons appear on the top-right corner of each product image:
Types of goods
Available zones
Descriptions
Small & light items
All Zone area
Items under 20kg weight & under 2m long, (some fragile items may not be included e.g. glass/mirrors)
Large and bulky items Extra Large items
Zone 1 & 2 only
Wet & hazardous bagged, items over 20Kg weight & oversized; Euronics white goods, TVs of all sizes.
Large Paint items (6L / 6L+)
Zone 1 only
Large hazardous items (6L+) - available for collection
Available zones
Indicator
Descriptions
All zone area
This icon with all zone area in green, indicates this items can be shipped to all Zone.
Zone 1 & 2 only
Zone 1 & 2 in green and zone 3 greyed out, indicates this product can only be shipped to Zone 1 and 2
Zone 1 only
Zone 1 in green zone 2 and zone 3 are greyed out, indicates this product can only be shipped to Zone 1 only.
Old Appliance Collection:
When you buy a large appliance, we’ll collect your old one for free through WEEE Ireland. Please ensure it is uninstalled, disconnected, and ready for pickup. Collection is like-for-like and takes place at the front door or apartment entrance. Restrictions may apply based on access and item type.
At TJ O'Mahony we will exchange or refund any Retail unused product returned to us in its original condition within 30 days of receiving it (*)You can return any unused product to us in its original condition for a full refund or exchange within 30 days of delivery.
This right to return does not apply to products that are non stock and only available to order such as catalogued doors, catalogued bathroomware and mixed paints which are made especially for your order.
Please note that we are unable to accept returns on certain bagged building products and materials, including (but not limited to) hard wall, cement, bonding, slates, and ridges. We appreciate your understanding and recommend checking product requirements carefully before purchase.