For durable, everyday decking projects, the 150x35 Treated Decking Board (Product Code: 04D1503548) is a trade favourite. This 4.8-metre board is crafted from high-quality pressure-treated timber, delivering long-lasting performance for garden decks, patios, and outdoor structures. Its robust construction and smooth finish make it both practical and easy to work with, providing a reliable solution for both DIYers and professional installers.
Engineered for longevity and outdoor use, the timber is pressure-treated to resist rot, decay, and insect attack, making it suitable for exposed environments. Lightweight yet strong, it’s simple to cut, drill, and fix, ensuring quick, hassle-free installation.
Key Features:
Pressure-Treated Timber: Built to withstand the elements, ideal for outdoor decks, walkways, and garden projects.
Generous Dimensions: 150mm wide x 35mm thick x 4.8m long, giving excellent coverage with a solid feel underfoot.
Easy to Handle: Smooth finish makes sawing, sanding, and fixing straightforward.
Versatile Use: Perfect for both domestic and small commercial projects where durable timber is required.
Durable & Long-Lasting: Resistant to rot, decay, and insect damage for years of reliable service.
Technical Specifications:
Product Type: Pressure Treated Decking Board
Nominal Dimensions: 150mm x 35mm
Length: 4.8 Metres
Finished Size: Approximately 4–8mm smaller after machining
Timber Type: Softwood
Treatment Type: Pressure Treated
Use Class: Suitable for above-ground exterior use
Fixings Recommended: Stainless steel or galvanised exterior-grade decking screws
Recommended Joist Spacing: Typically 400mm centres (subject to project requirements)
Installation Spacing: 5–7mm gap between boards recommended
Maintenance: Periodic sealing or oiling recommended to extend service life
Common Uses
Large garden decking installations
Raised decks and entertainment areas
Commercial outdoor seating areas
Boardwalks and pathways
Balcony and terrace decking (with correct subframe support)
Landscaping projects and garden features
TJ’s Tip:
For a professional finish, allow a small expansion gap between boards to accommodate timber movement in varying weather conditions
We offer reliable delivery services throughout the Republic of Ireland, with straightforward delivery charges for both trade and DIY customers. Delivery options are confirmed at checkout based on your order and delivery Eircode.
Delivery Charges & Delivery Times
Delivery Type
Delivery Area
Delivery Charge
Delivery Time
Small Items
Republic of Ireland
€9.99
3–4 working days
Large & Heavy*
Standard delivery area
€29.99
5–7 working days
Extra Large*
Standard delivery area
€50.00
5–7 working days
Paint 5L or less**
Standard delivery area
€19.99
5–7 working days
Swipe sideways to compare delivery options.
Small Items
Delivery area
Republic of Ireland
Charge
€9.99
Delivery time
3–4 working days
Large & Heavy*
Delivery area
Standard delivery area
Charge
€29.99
Delivery time
5–7 working days
Extra Large*
Delivery area
Standard delivery area
Charge
€50.00
Delivery time
5–7 working days
Paint 5L or less**
Delivery area
Standard delivery area
Charge
€19.99
Delivery time
5–7 working days
*Standard delivery policy. Promotional delivery rates may apply during campaigns.
Additional Information
FREE delivery on eligible Small Items and Large & Heavy orders over €1,499, within the standard delivery area only.
Special Order and Catalogue Products require an additional 5 working days.
FREE collection of old appliances is available through WEEE Ireland when purchasing qualifying large appliances.
FREE Click & Collect is available for items in stock at your selected branch.
Large & Heavy and Extra Large items are available within our standard delivery area only.
Paint delivery Paint in tin cans 5L or less is available for delivery. Larger sizes and paint supplied in plastic buckets are available for Click & Collect only.
TJ O'Mahony offers a 30-day returns policy on eligible unused products, giving you additional time beyond the statutory 14-day cooling-off period applicable to most online consumer purchases.
Eligible products can be returned for a refund or exchange within 30 days of delivery or collection, provided they are unused, in their original and re-saleable condition, complete with all supplied parts and accessories, and accompanied by proof of purchase.
Please note: Return restrictions apply to certain products, including Mixed Paint, certain Bagged Building Products, Solid Fuel, Special Order, Non-Stock and Catalogued Products.
Your statutory rights in relation to faulty, damaged, incorrectly supplied or non-conforming goods are not affected.
